Información del autor
Autor Cardiel López, Nicolás |
Documentos disponibles escritos por este autor (97)
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Falcón Barroso, J. ; Sánchez Blázquez, P. ; Vazdekis, A. ; Ricciardelli, E. ; Cardiel López, Nicolás ; Cenarro, A. J. ; Gorgas García, Francisco Javier ; Peletier, R. F. | EDP Sciencies | 2011-08We present a number of improvements to the MILES library and stellar population models. We correct some small errors in the radial velocities of the stars, measure the spectral resolution of the library and models more accurately, and give a bet[...]texto impreso
Sánchez Blázquez, P. ; Gibson, B. K. ; Kawata, D. ; Cardiel López, Nicolás ; Balcells, M. | Wiley-Blackwell publishing Inc | 2009-12-11We present a spectral analysis of a sample of red-sequence galaxies identified by van Dokkum as dry merger remnants and ongoing dry mergers. Kinematics, stellar population absorption features and ionization from emission lines are derived. We fi[...]texto impreso
Sánchez Blázquez, P. ; Gibson, B. K. ; Kawata, D. ; Cardiel López, Nicolás ; Balcells, M. | Wiley | 2009-12-11We present a spectral analysis of a sample of red-sequence galaxies identified by van Dokkum as dry merger remnants and ongoing dry mergers. Kinematics, stellar population absorption features and ionization from emission lines are derived. We fi[...]texto impreso
Pérez González, Pablo Guillermo ; Cardiel López, Nicolás ; Eliche Moral, María del Carmen ; otros, ... | American Astronomical Society | 2016-04-01We present Keck I MOSFIRE spectroscopy in the Y and H bands of GDN-8231, a massive, compact, star-forming galaxy at a redshift of z ~ 1.7. Its spectrum reveals both H? and [Nii] emission lines and strong Balmer absorption lines. The H? and Spitz[...]texto impreso
Sánchez de Miguel, Alejandro ; Kyba, Christopher C. M. ; Aubé, Martin ; Zamorano Calvo, Jaime ; Cardiel López, Nicolás ; Tapia Ayuga, Carlos ; Bennie, Jon ; Gaston, Kevin J. | Elsevier Science INC | 2019-04Sensors on remote sensing satellites have provided useful tools for evaluation of the environmental impacts of nighttime artificial light pollution. However, due to their panchromatic nature, the data available from these sensors (VIIRS/DNB and [...]texto impreso
Peralta de Arriba, L. ; Balcells, M. ; Trujillo, I. ; Falcón Barroso, J. ; Tapia, T. ; Cardiel López, Nicolás ; Gallego Maestro, Jesús ; Guzmán, R. ; Hempel, A. ; Martín Navarro, I. ; Pérez González, Pablo Guillermo ; Sánchez Blázquez, P. | Wiley | 2015-10-11Several authors have reported that the dynamical masses of massive compact galaxies (M_? ? 10^11?M_?, r_e ? 1?kpc), computed as M_dyn=5.0 ?_e^2r_e/GMdyn=5.0 ?e2re/G, are lower than their stellar masses M_?. In a previous study from our group, th[...]texto impreso
We probe the merging channel of massive galaxies over the z= 0.3 ? 1.3 redshift window by studying close pairs in a sample of 238 galaxies with stellar mass > ? 1011M?, from the SHARDS survey. SHARDS provides medium band photometry equivalent to[...]texto impreso
Cardiel López, Nicolás ; Eliche Moral, María del Carmen ; Pascual, Sergio | Spie-Int Soc Optical Engineering | 2012FRIDA (inFRared Imager and Dissector for the Adaptive optics system of the Gran Telescopio Canarias) is designed as a diffraction limited instrument that will offer broad and narrow band imaging and integral field spectroscopy capabilities with [...]texto impreso
In many astronomical problems one often needs to determine the upper and/or lower boundary of a given data set. An automatic and objective approach consists in fitting the data using a generalized least-squares method, where the function to be m[...]texto impreso
Pascual Ramírez, Sergio ; Gallego Maestro, Jesús ; Cardiel López, Nicolás | Universidad Nacional Autónoma México, Instituto Astronomía | 2007EMIR (Balcells et al. 2000) is a near-infrared wide-field camera and multi-object spectrograph being built for the GTC. The Data Reduction Pipeline (DRP) will be optimized for handling and reducing near-infrared data acquired with EMIR.texto impreso
Barro, Guillermo ; Gallego Maestro, Jesús ; Pérez González, Pablo Guillermo ; Eliche Moral, María del Carmen ; Balcells, M. ; Villar, V. ; Cardiel López, Nicolás ; Cristobal Hornillos, D. ; Gil de Paz, Armando ; Guzmán, R. ; Pelló, R. ; Prieto, M. ; Zamorano Calvo, Jaime | SPRINGER-VERLAG BERLIN | 2010We present a study that links the NCs to the rest-frame luminosity functions (LFs) at the passbands probed by the observed K-band at different epochs. Making use of a large K-band selected sample in the Groth Field, HDFN and CDFS (?0.27deg^(2)),[...]texto impreso
Jiménez Esteban, F. M. ; Cabrera Lavers, A. ; Cardiel López, Nicolás ; Alacid, J. M. | Wiley | 2012-11The observation of blank fields, defined as regions of the sky that are devoid of stars down to a given threshold magnitude, constitutes one of the most relevant calibration procedures required for the proper reduction of astronomical data obtai[...]texto impreso
Pascual Ramírez, Sergio ; Gallego Maestro, Jesús ; Cardiel López, Nicolás ; Eliche Moral, María del Carmen | Universidad Nacional Autónoma Mexico, Inst. de Astronomía | 2013The UCM Instrumentation Group (GUAIX) is developing currently Data Reduction Pipelines (DRP) for four instruments of the GTC: EMIR, FRIDA, MEGARA and MIRADAS. The purpose of the DRPs is to provide astronomers scientific quality data, removing in[...]texto impreso
Sánchez Blázquez, Patricia ; Gorgas García, Francisco Javier ; Cardiel López, Nicolás ; Cenarro, J. ; González, J. J. | IOP Publishing | 2003-06-20Central line-strength indices were measured in the blue spectral region for a sample of 98 early-type galaxies in different environments. For most indices (Mg b and [Fe] in particular), elliptical galaxies in rich clusters and in low-density reg[...]texto impreso
Cenarro, A. J. ; Sánchez Blázquez, Patricia ; Cardiel López, Nicolás ; Gorgas García, Francisco Javier | IOP Publishing | 2004-10-20We present measurements of the Ca II triplet and the Ca4227 Lick index for a sample of early-type galaxies in the Coma Cluster, deriving, for the first time, their corresponding relationships with velocity dispersion. Compared with a similar sub[...]texto impreso
Matkovic, A. ; Guzmán, R. ; Sánchez Blázquez, P. ; Cardiel López, Nicolás ; Gorgas García, Francisco Javier | American Institute of Physics | 2009We derive ages, metallicities and [alpha/Fe] ratios for dwarf early-type galaxies (dE/dS0) in the center and a region believed to be infalling into the Coma cluster. We find that a set of metallic indices cannot be described by linear relations [...]texto impreso
We report the results on the EMIR1 (Espectrografo Multiobjeto Infra-Rojo) performances after the commissioning period of the instrument at the Gran Telescopio Canarias (GTC). EMIR is one of the first common user instruments for the GTC, the 10 m[...]texto impreso
Gorgas García, Francisco Javier ; Cardiel López, Nicolás ; Pedraz, S. ; González, J. J. | EDP Sciences | 1999-10Empirical fitting functions, describing the behaviour of the ?4000 Å break, D_4000, in terms of effective temperature, metallicity and surface gravity, are presented. For this purpose, the break has been measured in 392 stars from the Lick/IDS L[...]texto impreso
Cenarro, A. J. ; Cardiel López, Nicolás ; Gorgas García, Francisco Javier ; Peletier, R. F. ; Vazdekis, A. ; Prada, F. | Wiley | 2001-09-21A new stellar library at the near-IR spectral region developed for the empirical calibration of the Ca II triplet and stellar population synthesis modelling is presented. The library covers the range lambda lambda 8348-9020 at 1.5-Angstrom (FWHM[...]texto impreso
Cenarro, A. J. ; Gorgas García, Francisco Javier ; Cardiel López, Nicolás ; Pedraz, S. ; Peletier, R. F. ; Vazdekis, A. | Wiley | 2001-09-21We present a homogeneous set of stellar atmospheric parameters (T-eff, log g, [Fe/H]) for a sample of about 700 field and cluster stars which constitute a new stellar library in the near-IR developed for stellar population synthesis in this spec[...]texto impreso
Cenarro, A. J. ; Gorgas García, Francisco Javier ; Cardiel López, Nicolás ; Vazdekis, A. ; Peletier, R. F. | Wiley | 2002-02-01Using a near-infrared stellar library of 706 stars with a wide coverage of atmospheric parameters, we study the behaviour of the Call triplet strength in terms of effective temperature, surface gravity and metallicity. Empirical fitting function[...]texto impreso
Pérez González, Pablo Guillermo ; Cardiel López, Nicolás ; Gallego Maestro, Jesús | Wiley | 2014-10-11We are undertaking a search for high-redshift low-luminosity Lyman Alpha sources in the SHARDS (Survey for High-z Absorption Red and Dead Sources) survey. Among the pre-selected Lyman Alpha sources two candidates were spotted, located 3.19 arcse[...]texto impreso
Sánchez de Miguel, Alejandro ; Bará, Salvador ; Aubé, Martin ; Cardiel López, Nicolás | MDPI | 2019-04Night-time lights interact with human physiology through different pathways starting at the retinal layers of the eye; from the signals provided by the rods; the S-, L- and M-cones; and the intrinsically photosensitive retinal ganglion cells (ip[...]texto impreso
Mármol Queraltó, E. ; Cardiel López, Nicolás ; Sánchez Blázquez, P. ; Trager, S. C. ; Peletier, R. F. ; Kuntschner, H. ; Silva, D. R. ; Cenarro, A. J. ; Vazdekis, A. ; Gorgas García, Francisco Javier | IOP publishing ltd | 2009-11-10The study of stellar populations in early-type galaxies in different environments is a powerful tool for constraining their star formation histories. This study has been traditionally restricted to the optical range, where dwarfs around the turn[...]texto impreso
Pedraz, S. ; Gorgas García, Francisco Javier ; Cardiel López, Nicolás ; Sánchez Blázquez, P. ; Guzmán, R. | Wiley | 2002-05In this letter we investigate the kinematical properties of early-type dwarfs by significantly enlarging the scarce observational sample so far available. We present rotation curves and mean velocity dispersions for four bright dwarf ellipticals[...]texto impreso
Borlaff, Alejandro ; Eliche Moral, María del Carmen ; Beckman, John E. ; Ciambur, Bogdan C. ; Pérez González, Pablo Guillermo ; Barro, Guillermo ; Cava, Antonio ; Cardiel López, Nicolás | EDP Sciencies | 2017-08Context. The controversy about the origin of the structure of early-type S0-E/S0 galaxies may be due to the difficulty of comparing surface brightness profiles with different depths, photometric corrections and point spread function (PSF) effect[...]texto impreso
Vazdekis, A. ; Sánchez Blázquez, P. ; Falcón Barroso, J. ; Cenarro, A. J. ; Beasley, M. A. ; Cardiel López, Nicolás ; Gorgas García, Francisco Javier ; Peletier, R. F. | Wiley | 2010-06-01We present synthetic spectral energy distributions (SEDs) for single-age, single-metallicity stellar populations (SSPs) covering the full optical spectral range at moderately high resolution [full width at half-maximum (FWHM) = 2.3 A]. These SED[...]texto impreso
Brauneck, U. ; Gallego Maestro, Jesús ; Cardiel López, Nicolás ; Cabello, N. ; Guzmán, R. ; Rodríguez-Espinosa, J.M. ; Herrero, A. ; Mass-Hessee, M. ; Salvador, E. ; Manrique, A. ; Marín-Franch, A. | Spie-Int Soc Optical Engineering | 2018We present the first results using a new SCHOTT 1% narrow band filter in the near infrared for the CIRCE camera of the 10.4m GTC telescope. The goal of the project is to detect very distant galaxies at the dawn of the Universe. These remote and [...]texto impreso
Gil de Paz, Armando ; Gallego Maestro, Jesús ; Bouquin, A. ; Carbajo, J. ; Cardiel López, Nicolás ; Castillo Morales, África ; Esteban San Román, Segundo ; López Orozco, José Antonioi ; Pascual Ramírez, Sergio ; Picazo, P. ; Sánchez Penim, Ainhoa ; Zamorano Calvo, Jaime ; Catalán Torrecilla, Cristina ; Dullo, Bililign ; Pérez González, P.G. | Spie-Int Soc Optical Engineering | 2018On June 25th 2017, the new intermediate-resolution optical IFU and MOS of the 10.4-m GTC had its first light. As part of the tests carried out to verify the performance of the instrument in its two modes (IFU & MOS) and 18 spectral setups (ident[...]texto impreso
Cardiel López, Nicolás ; Gallego Maestro, Jesús ; Pascual Ramírez, Sergio | Spie-Int Soc Optical Engineering | 2016FRIDA is a diffraction-limited imager and integral-field spectrometer that is being built for the adaptive-optics focus of the Gran Telescopio Canarias. In imaging mode FRIDA will provide scales of 0.010, 0.020 and 0.040 arcsec/pixel and in IFS [...]texto impreso
Cardiel López, Nicolás ; Gallego Maestro, Jesús ; otros, ... | Spie-Int Soc Optical Engineering | 2016FRIDA is a diffraction-limited imager and integral-field spectrometer that is being built for the adaptive-optics focus of the Gran Telescopio Canarias. In imaging mode FRIDA will provide scales of 0.010, 0.020 and 0.040 arcsec/pixel and in IFS [...]texto impreso
Pascual Ramírez, Sergio ; Gallego Maestro, Jesús ; Cardiel López, Nicolás | SPRINGER-VERLAG BERLIN | 2010EMIR is a near-infrared wide-field camera and multi-object spectrograph being built for the 10.4m Spanish telescope (Gran Telescopio Canarias, GTC) at La Palma Observatory. The Data Factory Pipeline (DFP) will be optimized for handling and reduc[...]texto impreso
Ugarte Postigo, A. de ; Castro Tirado, A. J. ; Gorosabel, J. ; Jóhannesson, G. ; Björnsson, G. ; Gudmundsson, E. H. ; Bremer, M. ; Pak, S. ; Tanvir, N. ; Castro Cerón, J. M. ; Guzyi, S. ; Jelínek, M. ; Klose, S. ; Pérez Ramírez, D. ; Aceituno, J. ; Campo Bagatín, A. ; Covino, S. ; Cardiel López, Nicolás | EDP Sciencies | 2005-12GRB 021004 is one of the best sampled gamma-ray bursts (GRB) to date, although the nature of its light curve is still being debated. Here we present 107 new optical, near-infrared (NIR) and millimetre observations, ranging from 2 h to more than [...]texto impreso
Cardiel López, Nicolás ; Gallego Maestro, Jesús ; Pascual Ramírez, Sergio ; Eliche Moral, María del Carmen ; Castillo Morales, África ; Guzmán, R. ; Gil de Paz, Armando ; Pérez González, Pablo Guillermo ; Gorgas García, Francisco Javier ; Zamorano Calvo, Jaime | SPRINGER-VERLAG BERLIN | 2010We present a short summary of the activities developed by GUAIX, the Universidad Complutense de Madrid (UCM) Group of Extragalactic Astrophysics and Astronomical Instrumentation. At present we are focused in the development of data reduction pip[...]texto impreso
Dullo, Bililign ; Chamorro Cazorla, Mario ; Gil de Paz, Armando ; Castillo Morales, María África ; Gallego Maestro, Jesús ; Carrasco, Esperanza ; Iglesias Paramo, Jorge ; Cedazo, Raquel ; García Vargas, María Luisa ; Pascual Ramírez, Sergio ; Cardiel López, Nicolás ; Pérez Calpena, Ana | American Astronomical Society | 2019-01-20Disky bulges in spiral galaxies are commonly thought to form out of disk materials (mainly) via bar-driven secular processes. They are structurally and dynamically distinct from “classical bulges,” which are built in violent merger events. We us[...]texto impreso
Pérez González, Pablo Guillermo ; Cardiel López, Nicolás ; Esquej Alonso, María del Pilar ; Gallego Maestro, Jesús | Wiley | 2014-10-01We analyse the stellar populations in the host galaxies of 53 X-ray selected optically dull active galactic nuclei (AGN) at 0.34texto impreso
Sánchez, S. F. ; Cardiel López, Nicolás ; Verheijen, M. A. W. ; Benítez, N. | SPRINGER-VERLAG BERLIN | 2007We report on integral field spectrocopy observations, performed with the PPAK module of the PMAS spectrograph, covering a field-of-view of ?74”×64” centered on the core of the galaxy cluster Abell 2218. A total of 43 objects were detected, 27 of[...]texto impreso
Serrano, A. ; Cardiel López, Nicolás ; Gallego Maestro, Jesús ; Balcells, M. ; Prieto, M. ; Cristóbal, D. ; Guzmán, R. ; Pelló, R. ; Gorgas García, Francisco Javier ; Zamorano Calvo, Jaime | Instituto de Astronomía. Universidad Nacional Autónoma de México | 2003As a part of our collaboration in the COSMOS Project, devoted to the characterization of galaxies during the ep o c h of maximum star formation in the history of the Universe, we have carried out a deep photometric survey covering about 380 arcm[...]texto impreso
Cristobal Hornillos, David ; Balcells, Marc ; Prieto, Mercedes ; Guzmán, Rafael ; Gallego Maestro, Jesús ; Cardiel López, Nicolás ; Serrano, Ángel ; Pello, Roser | Univ. Chicago Press | 2003-09-20We have used William Herschel Telescope/INGRID K_(s) images on two high-latitude fields, the Coppi and Groth strips, to obtain galaxy number counts over ~ 180 arcmin^(2), to a depth of K_(s) ~ 21:0. Detection efficiency corrections as a functi[...]texto impreso
Cristobal Hornillos, David ; Balcells, Marc ; Prieto, Mercedes ; Guzmán, Rafael ; Gallego Maestro, Jesús ; Cardiel López, Nicolás ; Serrano, Ángel ; Pello, Roser | IOP Publishing | 2003-09-20We have used William Herschel Telescope/INGRID K_(s) images on two high-latitude fields, the Coppi and Groth strips, to obtain galaxy number counts over similar to 180 arcmin^(2), to a depth of K_(s) similar to 21.0. Detection efficiency correct[...]texto impreso
Matkovic, A. ; Guzmán, R. ; Sánchez Blázquez, P. ; Gorgas García, Francisco Javier ; Cardiel López, Nicolás ; Gruel, N. | IOP Publishing | 2009-02-01We present line-strength measurements for 74 early-type galaxies in the core of the Coma cluster reaching down to velocity dispersions, sigma, of 30 km s(-1). The index-sigma relations for our sample, including galaxies with sigmatexto impreso
Gorgas García, Francisco Javier ; Pedraz, Santos ; Guzmán, Rafael ; Cardiel López, Nicolás ; González, J. J. | IOP Publishing | 1997-05-20We present new measurements of central line-strength indices (namely, Mg-2, (Fe), and H beta) and gradients for a sample of six bright spheroidal (Sph) galaxies in the Virgo Cluster. Comparison with similar measurements for elliptical (E) galaxi[...]texto impreso
Kehrig, C. ; Iglesias-Páramo, J. ; Vílchez, J. M. ; Gil de Paz, Armando ; Duarte Puertas, S. ; Perez-Montero, E. ; Díaz, A. I. ; Gallego Maestro, Jesús ; Carrasco, E. ; Cardiel López, Nicolás ; García-Vargas, M. L. ; Castillo Morales, África ; Cedazo, R. ; Gomez- Álvarez, P. ; Martínez-Delgado, I. ; Pascual Ramírez, Sergio ; Pérez-Calpena, A. | Oxford Univ. Press | 2020-10Here we report the first spatially resolved spectroscopic study for the galaxy PHL 293B using the high-resolution GTC/MEGARA integral field unit (IFU). PHL 293B is a local, extremely metal-poor, high ionization galaxy. This makes PHL 293B an exc[...]texto impreso
Sánchez Blázquez, Patricia ; Peletier, R. F. ; Jiménez Vicente, J. ; Cardiel López, Nicolás ; Cenarro, A. J. ; Falcón Barroso, J. ; Gorgas García, Francisco Javier ; Selam, S. ; Vazdekis, A. | Wiley | 2006-09-11A new stellar library developed for stellar population synthesis modelling is presented. The library consists of 985 stars spanning a large range in atmospheric parameters. The spectra were obtained at the 2.5-m Isaac Newton Telescope and cover [...]texto impreso
Cenarro, A. J. ; Peletier, R. F. ; Sánchez Blázquez, P. ; Selam, S. O. ; Toloba, E. ; Cardiel López, Nicolás ; Falcón Barroso, J. ; Gorgas García, Francisco Javier ; Jiménez Vicente, J. ; Vazdekis, A. | Wiley | 2007-01-11We present a homogeneous set of stellar atmospheric parameters (T-eff, log g, [Fe/H]) for MILES, a new spectral stellar library covering the range lambda lambda 3525-7500 angstrom at 2.3 angstrom (FWHM) spectral resolution. The library consists [...]texto impreso
Castillo Morales, África ; Eliche Moral, María del Carmen ; Pascual Ramírez, Sergio ; Marino, Raffaella Anna ; Villar, V. ; Cardiel López, Nicolás ; Morales, I. ; González, E. ; Cedazo, R. ; Serena, F. ; Gallego Maestro, Jesús ; Carrasco, E. ; Vílchez, J. M. ; Sánchez, F. M. ; Gil de Paz, Armando ; García Vargas, M. L. | Universidad Nacional Autónoma Mexico, Inst. de Astronomía | 2013MEGARA (Multi-Espectrografo en GTC de Alta Resolucion para Astronomia) is an optical Integral-Field Unit (IFU) and Multi-Object Spectrograph (MOS) designed for the GTC 10.4 m telescope in La Palma. The MEGARA Control System will provide the capa[...]texto impreso
Zamorano Calvo, Jaime ; Gil de Paz, Armando ; Gallego Maestro, Jesús ; Cardiel López, Nicolás ; Eliche Moral, María del Carmen ; Pascual Ramírez, Sergio ; Castillo Morales, África ; Marino, Raffaella Anna ; Villar, V. ; García Vargas, M. L. ; Tulloch, S. M. ; Maldonado, M. ; Sánchez Blanco, E. ; Carrasco, E. ; Sánchez, F. M. ; Vílchez, J. M. ; Muñoz, V. ; Aguirre, D. | Universidad Nacional Autónoma Mexico, Inst. de Astronomía | 2013LICA-UCM is the brand new laboratory for scientific advanced instrumentation (Laboratorio de Investigacion Cientifica Avanzada) at Universidad Complutense de Madrid where MEGARA integration will take place.texto impreso
García Vargas, M. L. ; Carrasco, E. ; Mollá, M. ; Gil de Paz, Armando ; Berlanas, S.R. ; Cardiel López, Nicolás ; Gómez Álvarez, P. ; Gallego Maestro, Jesús ; Iglesias Páramo, J. ; Cedazo, R. ; Pascual Ramírez, Sergio ; Castillo Morales, África ; Pérez Calpena, A. ; Martínez Delgado, I. | Oxford University Press. | 2020-03MEGARA (Multi Espectrografo en GTC de Alta Resolucion para Astronomia) is an optical (3650-9750 Å), fibre-fed, medium-high spectral resolution (R = 6000, 12 000 and 20 000) instrument for the Gran Telescopio CANARIAS (GTC) 10.4-m telescope, comm[...]texto impreso
Gil de Paz, Armando ; Gallego Maestro, Jesús ; Castillo Morales, África ; Eliche Moral, María del Carmen ; Marino, Raffaella Anna ; Pascual, S. ; Sánchez Penim, A. ; Zamorano Calvo, Jaime ; Cardiel López, Nicolás ; Pérez González, Pablo Guillermo ; Villar, V. | SPIE, the international society for optics and photonics | 2014MEGARA (Multi-Espectrógrafo en GTC de Alta Resolución para Astronomía) is an optical Integral-Field Unit (IFU) and Multi-Object Spectrograph (MOS) designed for the GTC 10.4m telescope in La Palma. MEGARA offers two IFU fiber bundles, one coverin[...]texto impreso
Gil de Paz, Armando ; Gallego Maestro, Jesús ; Castillo Morales, África ; Eliche Moral, María del Carmen ; Marino, Raffaella Anna ; Pascual Ramírez, Sergio ; Zamorano Calvo, Jaime ; Cardiel López, Nicolás ; Pérez González, Pablo Guillermo ; ..., otros | Universidad Nacional Autónoma Mexico, Inst. de Astronomía | 2013In these proceedings we summarize the characteristics and current status of MEGARA, the future optical IFU and MOS for the 10.4 m GTC. MEGARA is being built by a Consortium led by the UCM (Spain) that also includes the INAOE (Mexico), the IAA-CS[...]texto impreso
Gil de Paz, Armando ; Gallego Maestro, Jesús ; Castillo Morales, África ; Eliche Moral, María del Carmen ; Pascual, S. ; Sánchez Penim, A. ; Villar, V. ; Zamorano Calvo, Jaime ; Cardiel López, Nicolás ; Cava, A. ; Pérez González, Pablo Guillermo | Spie-Int Soc Optical Engineering | 2012In these proceedings we give a summary of the characteristics and current status of the MEGARA instrument, the future optical IFU and MOS for the 10.4-m Gran Telescopio Canarias (GTC). MEGARA is being built by a Consortium of public research ins[...]texto impreso
MEGARA, the new intermediate-resolution optical IFU and MOS for GTC: getting ready for the telescope
Gil de Paz, Armando ; Gallego Maestro, Jesús ; Cardiel López, Nicolás ; Castillo Morales, África ; Cruz García, Jesús Manuel de la ; Esteban San Román, Segundo ; López Orozco, José Antonio ; Pascual, S. ; Picazo, P. ; Sánchez-Penim, A. ; Zamorano Calvo, Jaime ; Pérez González, Pablo Guillermo ; otros, ... | Spie-Int Soc Optical Engineering | 2016MEGARA (Multi-Espectrografo en GTC de Alta Resolucion para Astronomia) is an optical Integral-Field Unit (IFU) and Multi-Object Spectrograph (MOS) designed for the GTC 10.4m telescope in La Palma that is being built by a Consortium led by UCM (S[...]texto impreso
Gil de Paz, Armando ; Gallego Maestro, Jesús ; Bouquin, A. ; Carbajo, J. ; Cardiel López, Nicolás ; Castillo Morales, África ; Esteban San Román, Segundo ; López Orozco, José Antonio ; Pascual, S. ; Picazo, P. ; Sánchez Penim, Ainhoa ; Velázquez, M. ; Zamorano Calvo, Jaime ; Catalán Torrecilla, Cristina ; Dullo, Bililign ; Pérez González, P.G. ; Roca Fábrega, Santi | Spie-Int Soc Optical Engineering | 2018MEGARA is the new generation IFU and MOS optical spectrograph built for the 10.4m Gran Telescopio CANARIAS (GTC). The project was developed by a consortium led by UCM (Spain) that also includes INAOE (Mexico), IAA-CSIC (Spain) and UPM (Spain). T[...]texto impreso
Cenarro, A. J. ; Cardiel López, Nicolás ; Vazdekis, A. ; Gorgas García, Francisco Javier | Wiley | 2009-07-11Using the near-infrared spectral stellar library of Cenarro et al., the behaviour of the Mg i line at 8807 A and nearby TiO bands is analyzed in terms of the effective temperature, surface gravity and metallicity of the library stars. New spectr[...]texto impreso
Vazdekis, A. ; Sánchez Blázquez, P. ; Falcón Barroso, J. ; Cenarro, A. J. ; Beasley, M. A. ; Cardiel López, Nicolás ; Gorgas García, Francisco Javier ; Peletier, R. | Cambridge Univ. Press | 2009-08We present SEDs for single-age, single-metallicity stellar populations (SSPs) covering the full optical spectral range at resolution (FWHM = 2.3Å). These SEDs can be regarded as our base models, as we combine scaled-solar isochrones with an empi[...]texto impreso
The Mid-resolution InfRAreD Astronomical Spectrograph (MIRADAS, a near-infrared multi-object echelle spectrograph operating at spectral resolution R=20,000 over the 1-2.5 mu m bandpass) was selected by the Gran Telescopio Canarias (GTC) partners[...]texto impreso
Gallego Maestro, Jesús ; Cardiel López, Nicolás ; Eliche Moral, María del Carmen ; Pascual, S. | Spie-Int Soc Optical Engineering | 2012The Mid-resolution InfRAreD Astronomical Spectrograph (MIRADAS, a near-infrared multi-object echelle spectrograph operating at spectral resolution R=20,000 over the 1-2.5 mu m bandpass) was selected in 2010 by the Gran Telescopio Canarias (GTC) [...]texto impreso
Sánchez, S. F. ; Cardiel López, Nicolás ; Verheijen, M. A. W. ; Pedraz, S. ; Covone, G. | Wiley | 2007-03-21We present a study of the stellar populations and morphologies of galaxies in the core of the galaxy cluster Abell 2218. Integral field spectroscopy (IFS) observations were performed using PMAS in the PPAK mode covering a field of view of simila[...]texto impreso
Cardiel López, Nicolás ; Elbaz, D. ; Schiavon, R. P. ; Willmer, C. N. A. ; Koo, D. C. ; Phillips, A. C. ; Gallego Maestro, Jesús | IOP Publishing | 2003-02-10We use a sample of seven starburst galaxies at intermediate redshifts (z similar to 0.4 and 0.8) with observations ranging from the observed ultraviolet to 1.4 GHz, to compare the star formation rate (SFR) estimators that are used in the differe[...]texto impreso
Cenarro, A. J. ; Gorgas García, Francisco Javier ; Vazdekis, A. ; Cardiel López, Nicolás ; Peletier, R. F. | Wiley | 2003-02-11We present new relations between recently defined line-strength indices in the near-infrared (CaT*, CaT, PaT, MgI and sTiO) and central velocity dispersion (sigma(0) ) for a sample of 35 early-type galaxies, showing evidence for significant anti[...]texto impreso
Martín Hernández, J.M. ; Mármol Queraltó, E. ; Gorgas García, Francisco Javier ; Cardiel López, Nicolás ; Sánchez Blázquez, P. ; Cenarro, A.J. ; Peletier, R. F. ; Vazdekis, A. ; Falcón Barroso, J. | SPRINGER-VERLAG BERLIN | 2010We are presenting new empirical fitting functions for the Lick/IDS line-strength indices as measured in MILES (Medium-resolution INT Library of Empirical Spectra). Following previous work in the field, these functions describe the empirical beha[...]texto impreso
Mármol Queraltó, E. ; Cardiel López, Nicolás ; Gorgas García, Francisco Javier ; Pedraz, S. ; Cenarro, A.J. ; Sánchez Blázquez, P. ; Peletier, R. F. ; Vazdekis, A. | Instituto de Astronomía. Universidad Nacional Autónoma de México | 2005Stellar population synthesis models are crucial for the understanding of the large amount of data which is being gathered for galaxies at low and high redshift, and provide the only way to compare the "real world" with the theoretical framework.[...]texto impreso
Mármol Queraltó, E. ; Cardiel López, Nicolás ; Cenarro, A. J. ; Vazdekis, A. ; Gorgas García, Francisco Javier ; Pedraz, S. ; Peletier, R. F. ; Sánchez Blázquez, P. | EDP Sciencies | 2008-10The analysis of unresolved stellar populations demands evolutionary synthesis models with realistic physical ingredients and extended wavelength coverage. Aims. We quantitatively describe the first CO bandhead at 2.3 mu m to allow stellar popula[...]texto impreso
Gil de Paz, Armando ; Gallego Maestro, Jesús ; Castillo Morales, África ; Pascual Ramírez, Sergio ; Cardiel López, Nicolás | Oxford University Press. | 2020-04We present our analysis of high-resolution (R ? 20 000) GTC/MEGARA integral-field unit spectroscopic observations, obtained during the commissioning run, in the inner region (12.5 arcsec × 11.3 arcsec) of the active galaxy NGC 7469, at spatial s[...]texto impreso
Barro, G. ; Gallego Maestro, Jesús ; Pérez González, Pablo Guillermo ; Eliche Moral, María del Carmen ; Balcells, M. ; Villar, V. ; Cardiel López, Nicolás ; Cristobal Hornillos, D. ; Gil de Paz, Armando ; Guzmán, R. ; Pelló, R. ; Prieto, M. ; Zamorano Calvo, Jaime | EDP Sciencies | 2009-01Context. The galaxy number counts has been traditionally used to test models of galaxy evolution. However, the origin of significant differences in the shape of number counts at different wavelengths is still unclear. By relating the most remark[...]texto impreso
Alcalde Pampliega, Belén ; Pérez González, Pablo Guillermo ; Barro, Guillermo ; Domínguez Sánchez, Helena ; Eliche Moral, M. Carmen ; Cardiel López, Nicolás ; Hernán Caballero, Antonio ; Rodríguez Muñoz, Lucía ; Sánchez Blázquez, Patricia ; Esquej, Pilar | IOP publishing ltd | 2019-05-10We present a sample of 33 Balmer break galaxies (BBGs) selected as Hubble Space Telescope/F160W dropouts in the deepest CANDELS/GOODS fields (H > /~ 27.3 mag) but relatively bright in Spitzer/IRAC ([3.6], [4.5]texto impreso
Marino, Raffaella Anna ; Gil de Paz, Armando ; Cardiel López, Nicolás ; Castillo Morales, África ; Catalán Torrecilla, Cristina ; ..., otros. | EDP Sciencies | 2016-01We study, for the first time in a statistically significant and well-defined sample, the relation between the outer-disk ionized-gas metallicity gradients and the presence of breaks in the surface brightness profiles of disk galaxies. Sloan Digi[...]texto impreso
Domínguez Sánchez, Helena ; Pérez González, Pablo Guillermo ; Esquej Alonso, María del Pilar ; Eliche Moral, María del Carmen ; Alcalde Pampliega, Belén ; Cardiel López, Nicolás | Wiley | 2016-04-21We present star formation histories (SFHs) for a sample of 104 massive (stellar mass M > 10^10 M_?) quiescent galaxies (MQGs) at z = 1.0–1.5 from the analysis of spectrophotometric data from the Survey for High-z Absorption Red and Dead Sources[...]texto impreso
Sánchez, S. F. ; Cardiel López, Nicolás ; Verheijen, M. A. W. ; Martín Gordón, D. ; Vílchez, J. M. ; Alves, J. | EDP Sciencies | 2007-04We present a low-resolution spectroscopic survey of the Orion nebula. The data are released for public use. We show the possible applications of this dataset analyzing some of the main properties of the nebula. Methods. We perform an integral fi[...]texto impreso
Gallego Maestro, Jesús ; Zamorano Calvo, Jaime ; Cardiel López, Nicolás ; Castillo Morales, María África ; Cacho Martínez, Raúl ; Tapia Ayuga, Carlos Eugenio ; Pascual Ramírez, Sergio ; Pedraz Marcos, Santos | 2017-01-30Este proyecto se resume como un intento de implementar unas prácticas de laboratorio que permitan llevar a cabo observaciones astronómicas de calidad científica mediante el uso remoto a través de Internet de telescopios profesionales situados en[...]texto impreso
Cardiel López, Nicolás ; Gorgas García, Francisco Javier ; Cenarro, J. ; González, J. J. | EDP Sciences | 1998-02We present a new set of accurate formulae for the computation of random errors in the measurement of atomic and molecular line-strength indices. The new expressions are in excellent agreement with numerical simulations. We have found that, in so[...]texto impreso
The most important advantage of widefield cameras is, precisely, the widefield, since this offers the observers the possibility of obtaining vast amounts of data in a much shorter observing time. However, for a reliable data interpretation it is[...]texto impreso
Pérez González, Pablo Guillermo ; Cava, Antonio ; Barro, Guillermo ; Villar, Víctor ; Cardiel López, Nicolás ; Espino, Néstor ; Gallego Maestro, Jesús ; Zamorano Calvo, Jaime | IOP Publishing | 2013-01-01We present the Survey for High-z Absorption Red and Dead Sources (SHARDS), an ESO/GTC Large Program carried out using the OSIRIS instrument on the 10.4 m Gran Telescopio Canarias (GTC). SHARDS is an ultra-deep optical spectro-photometric survey [...]texto impreso
Pérez González, Pablo Guillermo ; Eliche Moral, María del Carmen ; Alcalde Pampliega, Belén ; Cardiel López, Nicolás ; Domínguez Sánchez, Helena ; Espino Briones, Néstor ; Esquej Alonso, María del Pilar ; Gallego Maestro, Jesús ; Rodríguez Muñoz, Lucía | American Astronomical Society | 2015-10-20In this paper, we present a comprehensive analysis of star-forming galaxies (SFGs) at intermediate redshifts (z ~ 1). We combine the ultra-deep optical spectro-photometric data from the Survey for High-z Absorption Red and Dead Sources (SHARDS) [...]texto impreso
Catalán Torrecilla, C. ; Castillo Morales, África ; Gil de Paz, Armando ; Gallego Maestro, Jesús ; Chamorro Cazorla, Mario ; Pascual Ramírez, Sergio ; Cardiel López, Nicolás ; Dullo, Bililign | IOP publishing ltd | 2020-02-06We present a comprehensive analysis of the multiphase structure of the interstellar medium (ISM) and the stellar kinematics in the edge-on nearby galaxy UGC 10205 using integral field spectroscopy (IFS) data taken with MultiEspectrógrafo en GTC [...]texto impreso
Cardiel López, Nicolás ; Gorgas García, Francisco Javier ; Aragón Salamanca, A. | Wiley | 1998-08-21We have obtained radial gradients in the spectral features of the lambda 4000-Angstrom break (D(4000)) and Mg(2) for a sample of 11 central cluster galaxies (CCGs): eight in clusters with cooling flows and three in clusters without. After carefu[...]texto impreso
Cardiel López, Nicolás ; Gorgas García, Francisco Javier ; Aragón Salamanca, A. | Wiley-Blackwell | 1995-11-15Spectroscopic observations of central dominant cluster galaxies, with and without cooling flows, are presented. Through the analysis of absorption spectral features, namely the strength of the magnesium absorption at 5175 Å and the 4000 Å break,[...]texto impreso
Cardiel López, Nicolás ; Gorgas García, Francisco Javier ; Aragón Salamanca, A. | Wiley | 1995-11-15Spectroscopic observations of central dominant cluster galaxies, with and without cooling flows, are presented. Through the analysis of absorption spectral features, namely the strength of the magnesium absorption at lambda 5175 Angstrom and the[...]texto impreso
Sánchez de Miguel, Alejandro ; Gallego Maestro, Jesús ; Pérez González, Pablo Guillermo ; Cardiel López, Nicolás ; Zamorano Calvo, Jaime ; Guzmán, R. ; González, A. ; Gruel, N. | Universidad Nacional Autónoma México, Instituto Astronomía | 2013Our main objective is to determine what kind of galaxies dominate the cosmic SFR density at z~2. Our sample consists of 24 galaxies in Chandra Deep Field South, a unique field for the study of galaxy evolution (12 observed with GNIRS/GEMINI and [...]texto impreso
García Bedregal, A. ; Cardiel López, Nicolás ; Aragón Salamanca, A. ; Merrifield, M. R. | Wiley | 2011-08We present absorption-line index gradients for a sample of S0 galaxies in the Fornax cluster. The sample has been selected to span a wide range in galaxy mass, and the deep FORS2 spectroscopy on the VLT allows us to explore the stellar populatio[...]texto impreso
Mármol Queraltó, Esther ; Cardiel López, Nicolás ; Sánchez Blázquez, P. ; Trager, S.C. ; Peletier, R. F. ; Kuntschner, H. ; Silva, D. R. ; Cenarro, A. J. ; Vazdekis, A. ; Gorgas García, Francisco Javier | Cambridge Univ. Press | 2009-08A full understanding of the physical properties of integrated stellar systems demands a multiwavelength approach since each spectral window shows us the contribution of different types of stars. However, most of the observational effort in stell[...]texto impreso
Sánchez Blázquez, P. ; Gorgas García, Francisco Javier ; Cardiel López, Nicolás ; González, J. J. | EDP Sciencies | 2006-10This paper commences a series devoted to the study of the stellar content of early-type galaxies. The goal of the series is to set constraints on the evolutionary status of these objects. Methods. In this paper we describe the details of the gal[...]texto impreso
Sánchez Blázquez, P. ; Gorgas García, Francisco Javier ; Cardiel López, Nicolás ; González, J. J. | EDP Sciencies | 2006-10This is the second paper of a series devoted to the study of the stellar content of early-type galaxies. The goal of the series is to set constraints on the evolutionary status of these objects Methods. We use a new set of models that include an[...]texto impreso
Sánchez Blázquez, Patricia ; Gorgas García, Francisco Javier ; Cardiel López, Nicolás | EDP Sciencies | 2006-10Aims. This is the third paper of a series devoted to the study of the stellar content of early-type galaxies. The goal of the series is to set constraints on the evolutionary status of these objects. Methods. We present line-strength gradients f[...]texto impreso
Cardiel López, Nicolás ; Jiménez Esteban, F. M. ; Alacid, J. M. ; Solano, E. ; Aberasturi, M. | Wiley | 2011-11The observation of blank fields, regions of the sky devoid of stars down to a given threshold magnitude, constitutes one of the typical important calibration procedures required for the proper reduction of astronomical data obtained in imaging m[...]texto impreso
Eliche Moral, María del Carmen ; Prieto, M. ; Barro, Guillermo ; Balcells, M. ; Gallego Maestro, Jesús ; Pérez González, Pablo Guillermo ; Zamorano Calvo, Jaime ; Cardiel López, Nicolás ; Gil de Paz, Armando ; Guzmán, R. ; Pelló, R. ; Villar, V. | SPRINGER-VERLAG BERLIN | 2010Considering that the recent history of E-S0’s can be approximated by Pure Luminosity Evolution (PLE), we have examined a set of PLE models in order to de-limit the epoch in which the majority of the red galaxy population moved away this simple [...]texto impreso
Pérez González, Pablo Guillermo ; Alcalde Pampliega, Belén ; Cardiel López, Nicolás ; Espino Briones, Néstor ; Hernán Caballero, Antonio | IOP publishing ltd | 2019-08We present a WFC3 F160W (H-band) selected catalog in the CANDELS/GOODS-N field containing photometry from the ultraviolet (UV) to the far-infrared (IR), photometric redshifts, and stellar parameters derived from the analysis of the multiwaveleng[...]texto impreso
Paliya, Vaidehi S. ; Dominguez, A. ; Cabello, C. ; Cardiel López, Nicolás ; Gallego Maestro, Jesús ; Siana, Brian ; Ajello, M. ; Hartmann, D. ; Gil de Paz, Armando ; Stalin, C.S. | IOP Publishing | 2020-11One of the major challenges in studying the cosmic evolution of relativistic jets is the identification of the high-redshift (z > 3) BL Lacertae objects, a class of jetted active galactic nuclei characterized by their quasi-featureless optical [...]texto impreso
Guzmán, R. ; Graham, A. W. ; Matkovic, A. ; Vass, I. ; Gorgas García, Francisco Javier ; Cardiel López, Nicolás | Astronomical Soc Pacific | 2003We present preliminary results of an extensive study of the fundamental properties of dwarf elliptical galaxies (dEs) in the Coma cluster. Our study will combine HST surface photometry with ground-based UBRIJK photometry and optical spectroscopy[...]texto impreso
Bedregal, A. G. ; Aragón Salamanca, A. ; Merrifield, M. R. ; Cardiel López, Nicolás | Wiley | 2008-06-21Using high signal-to-noise ratio VLT/FORS2 long-slit spectroscopy, we have studied the properties of the central stellar populations and dynamics of a sample of S0 galaxies in the Fornax cluster. The central absorption-line indices in these gala[...]texto impreso
Borlaff, Alejandro ; Trujillo, Ignacio ; Román, Javier ; Beckman, John E. ; Eliche Moral, M. Carmen ; Infante Sáinz, Raúl ; Lumbreras Calle, Alejandro ; Takuro Sato Martín de Almagro, Rodrigo ; Gómez Guijarro, Carlos ; Cebrián, María ; Dorta, Antonio ; Cardiel López, Nicolás ; Akhlaghi, Mohammad ; Martínez Lombilla, Cristina | EDP Sciences | 2019-01-21Context. The Hubble Ultra Deep field (HUDF) is the deepest region ever observed with the Hubble Space Telescope. With the main objective of unveiling the nature of galaxies up to z ? 7?8, the observing and reduction strategy have focused on the [...]texto impreso
Michielsen, D. ; Boselli, A. ; Conselice, C. J. ; Toloba, E. ; Whiley, I. M. ; Aragón Salamanca, A. ; Balcells, M. ; Cardiel López, Nicolás ; Cenarro, A. J. ; Gorgas García, Francisco Javier ; Peletier, R. F. ; Vazdekis, A. | Wiley | 2008-04-11Dwarf galaxies, as the most numerous type of galaxy, offer the potential to study galaxy formation and evolution in detail in the nearby universe. Although they seem to be simple systems at first view, they remain poorly understood. In an attemp[...]texto impreso
Klose, S. ; Henden, A. A. ; Greiner, J. ; Hartmann, D. H. ; Cardiel López, Nicolás ; Castro Tirado, A. J. ; Cerón, J. M. C. ; Gallego Maestro, Jesús ; Gorosabel, J. ; Stecklum, B. ; Tanvir, N. ; Thiele, U. ; Vrba, F. J. ; Zeh, A. | IOP Publishing | 2003-08-01We report rapid follow-up K'-band observations of the error box of the bright High Energy Transient Explorer burst GRB 020819. We find that any afterglow was fainter than K' = 19 only 9 hr after the burst. Because no optical afterglow was found,[...]texto impreso
Pelló, R. ; Hudelot, P. ; Laporte, N. ; Mellier, Y. ; McCraken, H.J. ; Balcells, M. ; Boone, F. ; Cardiel López, Nicolás ; Gallego Maestro, Jesús ; Garzón, F. ; Guzmán, R.G. ; Le Borgne, J.F. ; Prieto, M. ; Richard, J. ; Schaerer, D. ; Tresse, L. ; Arnouts, S. ; Cuby, J.G. ; Disseau, K. ; Hayes, M. | EDP SCIENCES S A | 2018-11-29The aim of this paper is to introduce the WIRCam Ultra Deep Survey (WUDS), a near-IR photometric survey carried out at the CFH Telescope in the field of the CFHTLS-D3 field (Groth Strip). WUDS includes four near-IR bands (Y, J, H and Ks) over a [...]texto impreso
Cardiel López, Nicolás ; Gorgas García, Francisco Javier ; Sánchez Blázquez, P. ; Cenarro, A. J. ; Pedraz, S. ; Bruzual, G. ; Klement, J. | EDP Sciencies | 2003-10It is well known that, when analyzed in the light of current synthesis model predictions, variations in the physical properties of single stellar populations (e.g. age, metallicity, initial mass function, element abundance ratios) may have a sim[...]texto impreso
We present Gran-Telescopio-Canarias/OSIRIS optical spectra of four of the most compact and massive early-type galaxies (ETGs) in the Groth Strip Survey at redshift z ~ 1, with effective radii R e = 0.5-2.4 kpc and photometric stellar masses M [...]texto impreso
Martínez Manso, Jesús ; Guzmán, Rafael ; Barro, Guillermo ; Cenarro, Javier ; Pérez González, Pablo Guillermo ; Sánchez Blázquez, Patricia ; Trujillo, Ignacio ; Balcells, Marc ; Cardiel López, Nicolás ; Hempel, Angela ; Prieto, Mercedes | IOP Publishing | 2011-09-10We present Gran-Telescopio-Canarias/OSIRIS optical spectra of four of the most compact and massive early-type galaxies (ETGs) in the Groth Strip Survey at redshift z similar to 1, with effective radii R-e = 0.5-2.4 kpc and photometric stellarmas[...]