Información del autor
Autor Gil de Paz, Armando |
Documentos disponibles escritos por este autor (189)
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We have derived the uncertainties to be expected in the derivation of galaxy physical properties (star formation history, age, metallicity, and reddening) when comparing broadband photometry to the predictions of evolutionary synthesis models. W[...]texto impreso
We study the m = 1 distortions (lopsidedness) in the stellar components of 167 nearby galaxies that span a wide range of morphologies and luminosities. We confirm the previous findings of (1) a high incidence of lopsidedness in the stellar distr[...]texto impreso
Carrasco, Esperanza ; Sánchez Blanco, Ernesto ; García Vargas, María Luisa ; Gil de Paz, Armando ; Gallego Maestro, Jesús ; Páez, Gonzalo ; Zamorano, Jaime ; Castro, Jorge | Spie-Int Soc Optical Engineering | 2011MEGARA is a multi-object spectrograph project for the 10.4m Gran Telescopio Canarias with medium to high resolution: R ~ 5600 - 17000. The instrument operates in three modes that cover different sky areas and that can run simultaneously: (1) the[...]texto impreso
Pérez González, Pablo Guillermo ; Zamorano Calvo, Jaime ; Gallego Maestro, Jesús ; Gil de Paz, Armando | EDP Sciences | 2000-02We present Johnson B CCD photometry for the whole sample of galaxies of the Universidad Complutense de Madrid (UCM) Survey Lists I and II. They constitute a well-defined and complete sample of galaxies in the Local Universe with active star form[...]texto impreso
Pérez González, Pablo Guillermo ; Gallego Maestro, Jesús ; Zamorano Calvo, Jaime ; Gil de Paz, Armando | EDP Sciencies | 2001-01We present Johnson B surface photometry for the UCM Survey galaxies. One-dimensional bulge-disk decomposition is attempted, discussing on fitting functions and computational procedures. The results from this decomposition, jointly with concentra[...]texto impreso
Pérez González, Pablo Guillermo ; Gallego Maestro, Jesús ; Zamorano Calvo, Jaime ; Gil de Paz, Armando | EDP Sciencies | 2001-01We present Johnson B surface photometry for the UCM Survey galaxies. One-dimensional bulge-disk decomposition is attempted, discussing on fitting functions and computational procedures. The results from this decomposition, jointly with concentra[...]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
We present B, R, and H? images for a total of 114 nearby galaxies (v_heliotexto impreso
We present the results from an analysis of surface photometry of B, R, and H? images of a total of 114 nearby galaxies (v_heliotexto impreso
MEGARA is the new IFU and multiobject spectrograph for Gran Telescopio Canarias. The spectograph will offer spectral resolution R-fwhm similar to 6,000, 12,000 and 18,700. Except for the optical fibers and microlenses, the complete MEGARA optica[...]texto impreso
In this paper we present optical long-slit spectroscopy and imaging of the proto-planetary nebula CRL 618. The optical lobes of CRL 618 consist of shock-excited gas, which emits many recombination and forbidden lines, and dust, which scatters li[...]texto impreso
Marino, Raffaella Anna ; Gil de Paz, Armando ; otros, ... | UNIV NACIONAL AUTONOMA MEXICO, INST DE ASTRONOMIA | 2016-04We present an improved version of FIT3D, a fitting tool for the analysis of the spectroscopic properties of the stellar populations and the ionized gas derived from moderate resolution spectra of galaxies. This tool was developed to analyze inte[...]texto impreso
Marino, Raffaella Anna ; Gil de Paz, Armando | Universidad Nacional Autónoma Mexico, Inst. de Astronomía | 2016-04We present PIPE3D, an analysis pipeline based on the FIT3D fitting tool, developed to explore the properties of the stellar populations and ionized gas of integral field spectroscopy (IFS) data. PIPE3D was created to provide coherent, simple to [...]texto impreso
MEGARA (Multi-Espectrógrafo en GTC de Alta Resolución para Astronomía) is the new integral-field and multi-object optical spectrograph for the 10.4m Gran Telescopio Canarias.. It will offer RFWHM ~6,000, 12,000 and 18,700 for the low- , mid- and[...]texto impreso
García Vargas, María Luisa ; Pérez Calpena, Ana ; Gil de Paz, Armando ; Gallego Maestro, Jesús ; Carrasco, Esperanza ; Cedazo, Raquel ; Iglesias, Jorge | Spie-Int Soc Optical Engineering | 2014The project management of complex instruments for ground-based large telescopes is a challenge itself. A good management is a clue for project success in terms of performance, schedule and budget. Being on time has become a strict requirement fo[...]texto impreso
Muñoz Mateos, J.C. ; Gil de Paz, Armando ; Zamorano Calvo, Jaime ; Pérez González, Pablo Guillermo ; Gallego Maestro, Jesús | SPRINGER-VERLAG BERLIN | 2010We present a detailed analysis of the radial distribution of dust properties (extinction, PAH abundance and dust-to-gas ratio) in 57 galaxies in the SINGS sample, performed on a multi-wavelength set of UV, IR and radio surface brightness profile[...]texto impreso
Muñoz Mateos, J. C. ; Gil de Paz, Armando ; Zamorano Calvo, Jaime ; Boissier, S. ; Dale, D. A. ; Pérez González, Pablo Guillermo ; Gallego Maestro, Jesús ; Madore, B. F. ; Bendo, G. ; Boselli, A. ; Buat, V. ; Calzetti, D. ; Moustakas, J. ; Kennicutt, R. C. Jr. | American Astronomical Society | 2009-10-01We present ultraviolet through far-infrared (FIR) surface brightness profiles for the 75 galaxies in the Spitzer Infrared Nearby Galaxies Survey (SINGS). The imagery used to measure the profiles includes Galaxy Evolution Explorer UV data, optica[...]texto impreso
Muñoz Mateos, J. C. ; Gil de Paz, Armando ; Boissier, S. ; Zamorano Calvo, Jaime ; Dale, D. A. ; Pérez González, Pablo Guillermo ; Gallego Maestro, Jesús ; Madore, B. F. ; Bendo, G. ; Thornley, M. D. ; Draine, B. T. ; Boselli, A. ; Buat, V. ; Calzetti, D. ; Moustakas, J. ; Kennicutt, R. C. Jr. | American Astronomical Society | 2009-08-20We present a detailed analysis of the radial distribution of dust properties in the SINGS sample, performed on a set of ultraviolet (UV), infrared (IR), and Hi surface brightness profiles, combined with published molecular gas profiles and metal[...]texto impreso
Muñoz Mateos, J. C. ; Boissier, S. ; Gil de Paz, Armando ; Zamorano Calvo, Jaime ; Kennicutt, R. C., Jr. ; Moustakas, J. ; Prantzos, N. ; Gallego Maestro, Jesús | American Astronomical Society | 2011-04-10We analyze the evolution of 42 spiral galaxies in the Spitzer Infrared Nearby Galaxies Survey. We make use of ultraviolet (UV), optical, and near-infrared radial profiles, corrected for internal extinction using the total-infrared to UV ratio, t[...]texto impreso
For a sample of 43 nearby, late-type galaxies, we have investigated the radial variation of both the current star formation rate and the dust-induced UV light attenuation. To do this we have cross-correlated IRAS images and GALEX observations fo[...]texto impreso
The Galaxy Evolution Explorer (GALEX) Nearby Galaxies Survey is providing deep far-UV and near-UV imaging for a representative sample of galaxies in the local universe. We present early results for M51 and M101, from GALEX UV imaging and Sloan D[...]texto impreso
Ultraviolet imaging with the Galaxy Evolution Explorer (GALEX) has revealed an extensive sample of UV-bright stellar complexes in the extreme outer disk of M83, extending to about 4 times the radius at which the majority of H II regions are dete[...]texto impreso
Rodríguez Muñoz, Lucía ; Gallego Maestro, Jesús ; Pacifici, Camilla ; Tresse, Laurence ; Charlot, Stéphane ; Gil de Paz, Armando ; Barro, Guillermo ; Villar, Víctor | IOP Publishing | 2015-01-20The epoch when low-mass star-forming galaxies (LMSFGs) form the bulk of their stellar mass is uncertain. While some models predict an early formation, others favor a delayed scenario until later ages of the universe. We present constraints on th[...]texto impreso
With the aim of constructing accurate two-dimensional maps of the stellar mass distribution in nearby galaxies from Spitzer Survey of Stellar Structure in Galaxies 3.6 and 4.5 ?m images, we report on the separation of the light from old stars fr[...]texto impreso
We present a new approach for estimating the 3.6 ?m stellar mass-to-light (M/L) ratio ?_3.6 in terms of the [3.6]-[4.5] colors of old stellar populations. Our approach avoids several of the largest sources of uncertainty in existing techniques u[...]texto impreso
Thilker, D. A. ; Bianchi, L. ; Meurer, G. ; Gil de Paz, Armando ; Boissier, S. ; Madore, B. F. ; Ferguson, A. ; Hameed, S. ; Neff, S. ; Martin, C. D. ; Rich, R. M. ; Schiminovich, D. ; Seibert, M.;, M. ; Wyder, T. | Astronomical Society of the Pacific (ASP) | 2008We describe HST imaging of recent star formation complexes located in the extended UV disk (XUV-disk) component of NGC 5236 (M 83), NGC 5055 (M 63), and NGC 2090. Photometry in four FUV-visible bands permits us to constrain the type of resolved [...]texto impreso
Gil de Paz, Armando ; Chotia, A. ; Marechal, E. ; Pedri, P. ; Vernac, L. ; Gorceix, O. ; Laburthe-Tolra, B. | American Physical Society | 2013-05-31We study dipolar relaxation of a chromium Bose-Einstein condensate loaded into a three-dimensional (3D) optical lattice. We observe dipolar relaxation resonances when the magnetic energy released during the inelastic collision matches an excitat[...]texto impreso
Tulloch, S. ; Gil de Paz, Armando ; Gallego Maestro, Jesús ; Zamorano Calvo, Jaime ; Tapia, C. | Spie-Int Soc Optical Engineering | 2012A CCD test-bench has been built at the Universidad Complutense's LICA laboratory. It is initially intended for commissioning of the MEGARA(1) (Multi-Espectrografo en GTC de Alta Resolucion para Astronomia) instrument but can be considered as a g[...]texto impreso
We have initiated a search for extended ultraviolet disk (XUV-disk) galaxies in the local universe. Here we compare GALEX UV and visible-NIR images of 189 nearby (Dtexto impreso
Pérez González, Pablo Guillermo ; Zamorano Calvo, Jaime ; Gallego Maestro, Jesús ; Aragón Salamanca, A. ; Gil de Paz, Armando | American Astronomical Society | 2003-07-10We present a photometric study of the Halpha emission in the Universidad Complutense de Madrid (UCM) Survey galaxies. This work complements our previously published spectroscopic data. We study the location of the star-forming knots, their inten[...]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
Viironen, K. ; Sánchez, S. F. ; Mármol Queraltó, E. ; Iglesias Páramo, J. ; Mast, D. ; Marino, Raffaella Anna ; Cristobal Hornillos, D. ; Gil de Paz, Armando ; van de Ven, G. ; Vílchez, J. ; Wisotzki, L. | EDP Sciencies | 2012-02Context. We carry out a detailed 2-D study of the ionised gas in the local universe galaxy UGC 9837. In nearby galaxies, like the galaxy in question here, the spatial distribution of the physical properties can be studied in detail, providing be[...]texto impreso
Muñoz Mateos, J. C. ; Gil de Paz, Armando ; Boissier, S. ; Zamorano Calvo, Jaime ; Jarrett, T. ; Gallego Maestro, Jesús ; Madore, B. F. | American Astronomical Society | 2007-04-01We present specific star formation rate (sSFR) radial profiles for a sample of 161 relatively face-on spiral galaxies from the GALEX Atlas of NearbyGalaxies. The sSFR profiles are derived from GALEX and 2MASS (FUV-K) color profiles after a prope[...]texto impreso
We present a catalogue and images of visually detected features, such as asymmetries, extensions, warps, shells, tidal tails, polar rings, and obvious signs of mergers or interactions, in the faint outer regions (at and outside of R_25) of nearb[...]texto impreso
Madore, B. F. ; Boissier, S. ; Gil de Paz, Armando ; Nelson, E. ; Petrillo, K. | Astronomical Society of the Pacific | 2007We present recent results from several on-going studies: The first addresses the question of gas-density thresholds for star formation, as probed by the outer disks of normal nearby galaxies. The second concerns the observational evidence for th[...]texto impreso
Espada, D. ; Muñoz Mateos, J. C. ; Gil de Paz, Armando ; Sabater, J. ; Boissier, S. ; Verley, S. ; Athanassoula, E. ; Bosma, A. ; León, S. ; Verdes Montenegro, L. ; Yun, M. ; Sulentic, J. | American Astronomical Society | 2011-07-20We study the Kennicutt-Schmidt star formation law and efficiency in the gaseous disk of the isolated galaxy CIG 96 (NGC 864), with special emphasis on its unusually large atomic gas (H I) disk (r_ H mathsci/r_ 25 = 3.5, r_ 25 = 1 85). We present[...]texto impreso
Catalán Torrecilla, Cristina ; Gil de Paz, Armando ; Castillo Morales, África ; Pérez González, Pablo Guillermo ; Marino, Raffaella Anna ; otros, ... | EDP Sciencies | 2015-12Context. The star formation rate (SFR) is one of the main parameters used to analyze the evolution of galaxies through time. The need for recovering the light reprocessed by dust commonly requires the use of low spatial resolution far-infrared d[...]texto impreso
Catalán Torrecilla, Cristina ; Gil de Paz, Armando ; Castillo Morales, África | American Astronomical Society | 2017-10-20We estimate the current extinction-corrected Ha star formation rate (SFR) of the different morphological components that shape galaxies (bulges, bars, and disks). We use a multicomponent photometric decomposition based on Sloan Digital Sky Surve[...]texto impreso
This work presents the main ultraviolet (UV) and far-infrared (FIR) properties of two samples of nearby galaxies selected from the GALEX (? = 2315 Å, hereafter NUV) and IRAS (? = 60 ?m) surveys, respectively. They are built in order to obtain de[...]texto impreso
Gil de Paz, Armando ; Aragón Salamanca, A. ; Gallego Maestro, Jesús ; Alonso Herrero, A. ; Zamorano Calvo, Jaime ; Kauffmann, G. | Wiley | 2000-08-01We present new near-infrared J and K imaging data for 67 galaxies from the Universidad Complutense de Madrid (UCM) survey used in the determination of the SFR density of the local Universe by Gallego et al. This is a sample of local star-forming[...]texto impreso
Aragón Salamanca, A. ; Alonso Herrero, A. ; Gallego Maestro, Jesús ; García Dabó, C. E. ; Pérez González, Pablo Guillermo ; Zamorano Calvo, Jaime ; Gil de Paz, Armando | Astronomical Society of the Pacific | 2003The [O ii]?3727 emission line is frequently used as an indicator of the star formation rate (SFR) despite its complex dependence on metallicity and excitation conditions. We have analysed the properties of the [O II] and H? emission lines for a [...]texto impreso
We use the Galaxy Evolution Explorer (GALEX) Medium and All-Sky Imaging Survey (MIS and AIS) data from the first public data release (GR1), matched to the Sloan Digital Sky Survey (SDSS) DR3 catalog, to perform source classification. The GALEX s[...]texto impreso
Sánchez Blázquez, P. ; Rosales Ortega, F. F. ; Méndez Abreu, J. ; Pérez, I. ; Sánchez, S. F. ; Zibetti, S. ; Aguerri, J. A. L. ; Bland-Hawthorn, J. ; Catalán Torrecilla, Cristina ; Cid Fernandes, R. ; de Amorim, A. ; de Lorenzo Cáceres, A. ; Falcón Barroso, J. ; Galazzi, A. ; García Benito, R. ; Gil de Paz, Armando ; González Delgado, R. ; Husemann, B. ; Iglesias Paramo, Jorge ; Jungwiert, B. ; Marino, Raffaella Anna ; Márquez, I. ; Mast, D. ; Mendoza, M. A. ; Mollá, M. ; Papaderos, P. ; Ruiz Lara, T. ; van de Ven, G. ; Walcher, C. J. ; Wisotzki, L. | EDP Sciencies | 2014-10While studies of gasphase metallicity gradients in disc galaxies are common, very little has been done towards the acquisition of stellar abundance gradients in the same regions. We present here a comparative study of the stellar metallicity and[...]texto impreso
Pérez González, Pablo Guillermo ; Gil de Paz, Armando ; Zamorano Calvo, Jaime ; Gallego Maestro, Jesús ; Alonso Herrero, A. ; Aragón Salamanca, A | Wiley | 2003-01-11We present an analysis of the integrated properties of the stellar populations in the Universidad Complutense de Madrid (UCM) Survey of Halpha-selected galaxies. In this paper, the first of a series, we describe in detail the techniques develope[...]texto impreso
Pérez González, Pablo Guillermo ; Gil de Paz, Armando ; Zamorano Calvo, Jaime ; Gallego Maestro, Jesús ; Alonso Herrero, A. ; Aragón Salamanca, A. | Wiley | 2003-01-11We present the integrated properties of the stellar populations in the Universidad Complutense de Madrid (UCM) Survey galaxies. Applying the techniques described in the first paper of this series, we derive ages, burst masses and metallicities o[...]texto impreso
Sahai, Raghvendra ; Neill, James D. ; Gil de Paz, Armando ; Sánchez Contreras, Carmen | IOP Publishing | 2011-10-20Binarity is believed to dramatically affect the history and geometry of mass loss in asymptotic giant branch (AGB) and post-AGB stars, but observational evidence of binarity is sorely lacking. As part of a project to look for hot binary companio[...]texto impreso
NGC 1097 is a nearby Seyfert 1 galaxy with a bright circumnuclear starburst ring, a strong large-scale bar, and an active nucleus. We present a detailed study of the spatial variation of the far-infrared (FIR) [C II]158 ?m and [O I]63 ?m lines a[...]texto impreso
Pérez Calpena, A. ; García Vargas, M. L. ; Gil de Paz, Armando ; Gallego Maestro, Jesús ; Carrasco Licea, E. ; Sánchez Moreno, F. ; Iglesias Páramo, J. | Spie-Int Soc Optical Engineering | 2014MEGARA (Multi-Espectrografo en GTC de Alta Resolucion para Astronomia) is a facility instrument of the 10.4m GTC (La Palma, Spain) working at optical wavelengths that provides both Integral-Field Unit (IFU) and Multi-Object Spectrograph (MOS) ca[...]texto impreso
We present spatial variations of the CO J = 2?1/1–0 line ratio (R_(21/10)) in the barred spiral galaxy M83 using Total Power Array (single-dish telescopes) data from the Atacama Large Millimeter/submillimeter Array. While the intensities of thes[...]texto impreso
We combine data from the Spitzer Survey for Stellar Structure in Galaxies, a recently calibrated empirical stellar mass estimator from Eskew et al., and an extensive database of H i spectral line profiles to examine the baryonic Tully–Fisher (BT[...]texto impreso
Dullo, Bililign T. ; Bouquin, Alexandre Y. K. ; Gil de Paz, Armando ; Knapen, Johan H. ; Gorgas García, Francisco Javier | IOP publishing ltd | 2020-07Tight correlations between supermassive black hole (SMBH) mass (M_(BH)) and the properties of the host galaxy have useful implications for our understanding of the growth of SMBHs and evolution of galaxies. Here, we present newly observed correl[...]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
Spitzer data at 24, 70, and 160 ?m and ground-based H? images are analyzed for a sample of 189 nearby star-forming and starburst galaxies to investigate whether reliable star formation rate (SFR) indicators can be defined using the monochromatic[...]texto impreso
Sánchez, Sebastián F. ; Sánchez Menguiano, Laura ; Marino, Raffaella Anna ; Rosales Ortega, F. F. ; Pérez, Isabel ; Gil de Paz, Armando ; Pérez, Enrique ; Walcher, C. Jakob ; López Cobá, Carlos | MDPI AG | 2015-12We present here a review of the latest results on the spatially-resolved analysis of the stellar populations and ionized gas of disk-dominated galaxies based on Calar Alto Legacy Integral Field Area (CALIFA) data. CALIFA is an ongoing integral f[...]texto impreso
We present deep optical long-slit spectra of the peculiar protoplanetary nebula (PPN) OH 231.8+4.2 obtained with the 6.5 m Baade Telescope at Las Campanas Observatory (Chile). In addition to the molecular absorption bands characteristic of the M[...]texto impreso
We extend our initial study of the connection between the UV colour of galaxies and both the inferred stellar mass-to-light ratio, Upsilon(*), and a mass-to-light ratio referenced to Salpeter initial mass function (IMF) models of the same age an[...]texto impreso
Madore, Barry F. ; Gil de Paz, Armando ; Pevunova, Olga ; Thompson, Ian | IOP publishing ltd | 2007-07The object NGC 6908 was once thought to simply be a surface brightness enhancement in the eastern spiral arm of the nearby spiral galaxy NGC 6907. Based on an examination of near-infrared imaging, the object is shown to in fact be a lenticular S[...]texto impreso
Boselli, A. ; Boissier, S. ; Cortese, L. ; Gil de Paz, Armando ; Seibert, M ; Madore, B. F. ; Buat, V. ; Martin, D. C. | American Astronomical Society | 2006-11-10We present a new method for studying the star formation history of late-type cluster galaxies undergoing gas starvation or a ram pressure stripping event by combining bidimensional multifrequency observations with multizone models of galactic ch[...]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
Bouquin, Alexandre Y. K. ; Gil de Paz, Armando ; Muñoz Mateos, Juan Carlos ; Boissier, Samuel ; Sheth, Kartik ; Zaritsky, Dennis ; Peletier, Reynier F. ; Knapen, Johan H. ; Gallego Maestro, Jesús | University Chicago Press | 2018-02We present new spatially resolved surface photometry in the far-ultraviolet (FUV) and near-ultraviolet (NUV) from images obtained by the Galaxy Evolution Explorer (GALEX) and IRAC1 (3.6 mu m) photometry from the Spitzer Survey of Stellar Structu[...]texto impreso
We present images, integrated photometry, and surface-brightness and color profiles for a total of 1034 nearby galaxies recently observed by the Galaxy Evolution Explorer (GALEX) satellite in its far-ultraviolet (FUV; ?_eff = 1516 Å) and near-ul[...]texto impreso
Bouquin, Alexandre Y. K. ; Gil de Paz, Armando ; Boissier, Samuel ; Muñoz Mateos, Juan Carlos ; Sheth, Kartik ; Zaritsky, Dennis ; Laine, Jarkko ; Gallego Maestro, Jesús ; Peletier, Reynier F. ; Roeck, Benjamin R. ; Knapen, Johan H. | IOP Publishing | 2015-02-10We obtained GALEX FUV, NUV, and Spitzer/ IRAC 3.6 ?m photometry for > 2000 galaxies, available for 90% of the S^(4)G sample. We find a very tight. GALEX blue sequence (GBS) in the (FUV- NUV) versus (NUV-[3.6]) color- color diagram, which is pop[...]texto impreso
We have analyzed the radial distribution of old stars in a sample of 218 nearby face-on disks, using deep 3.6 ?m images from the Spitzer Survey of Stellar Structure in Galaxies. In particular, we have studied the structural properties of those d[...]texto impreso
Bruzzese, S.M. ; Thilker, David A. ; Meurer, G.R. ; Bianchi, Luciana ; Watts, A.B. ; Ferguson, A.M.N. ; Gil de Paz, Armando ; Madore, B. ; Martin, D. Christopher ; Rich, R. Michael | Wiley | 2020-01Using Hubble Space Telescope ACS/WFC data we present the photometry and spatial distribution of resolved stellar populations of four fields within the extended ultraviolet disc (XUV disc) of M83. These observations showa clumpy distribution of m[...]texto impreso
We have measured the radial light profiles and global shapes of bars using two-dimensional 3.6 ?m image decompositions for 144 face-on barred galaxies from the Spitzer Survey of Stellar Structure in Galaxies. The bar surface brightness profile i[...]texto impreso
Marino, Raffaella Anna ; Gil de Paz, Armando ; Castillo Morales, África ; otros, ... | EDP Sciencies | 2013-11The use of integral field spectroscopy is since recently allowing to measure the emission line fluxes of an increasingly large number of star-forming galaxies, both locally and at high redshift. Many studies have used these fluxes to derive the [...]texto impreso
We use mid-infrared 3.6 and 4.5 ?m imaging of NGC 3906 from the Spitzer Survey of Stellar Structure in Galaxies (S^4G) to understand the nature of an unusual offset between its stellar bar and the photometric center of an otherwise regular, circ[...]texto impreso
The properties of the Malin 1 galaxy giant disk A panchromatic view from the NGVS and GUViCS surveys
Boissier, S. ; Boselli, A. ; Ferrarese, L. ; Côté, P- ; Roehlly, Y. ; Gwym, S.D.J. ; Guillandre, J.-C ; Roediger, J. ; Koda, J. ; Muños Mateos, J.C. ; Gil de Paz, Armando ; Madore, B.F. | EDP Sciencies | 2016-09Context. Low surface brightness galaxies (LSBGs) represent a significant percentage of local galaxies but their formation and evolution remain elusive. They may hold crucial information for our understanding of many key issues (i.e., census of b[...]texto impreso
We examine the effect of circumstellar dust extinction on the near-IR (NIR) contribution of asymptotic giant branch (AGB) stars in intermediate-age clusters throughout the disk of M100. For our sample of 17AGB-dominated clusters we extract optic[...]texto impreso
The survey description and the near-, mid-, and far-infrared flux properties are presented for the 258 galaxies in the Local Volume Legacy (LVL). LVL is a Spitzer Space Telescope legacy program that surveys the local universe out to 11 Mpc, buil[...]texto impreso
The mid-infrared is an optimal window to trace stellar mass in nearby galaxies and the 3.6 ?m IRAC band has been exploited to this effect, but such mass estimates can be biased by dust emission. We present our pipeline to reveal the old stellar [...]texto impreso
The Spitzer Survey of Stellar Structure in Galaxies (S^4G) is an Exploration Science Legacy Program approved for the Spitzer post-cryogenic mission. It is a volume-, magnitude-, and size-limited (d 30º, m_Bcorr 1’) survey of 2,331 galaxies u[...]texto impreso
The Spitzer Survey of Stellar Structure in Galaxies (S^4G) is a deep 3.6 and 4.5 ?m imaging survey of 2352 nearby (texto impreso
The Spitzer Survey of Stellar Structure in Galaxies is a volume, magnitude, and size-limited survey of 2352 nearby galaxies with deep imaging at 3.6 and 4.5 ?m. In this paper, we describe our surface photometry pipeline and showcase the associat[...]texto impreso
Pérez González, Pablo Guillermo ; Rieke, George H.;, George H. ; Villar, Víctor ; Barro, Guillermo ; Blaylock, Myra ; Egami, Eiichi ; Gallego Maestro, Jesús ; Gil de Paz, Armando ; Pascual, Sergio ; Zamorano Calvo, Jaime ; Donley, Jennifer L. | American Astronomical Society | 2008-03-01Using a sample of ~28,000 sources selected at 3.6-4.5 ?m with Spitzer observations of the Hubble Deep Field North, the Chandra Deep Field South, and the Lockman Hole (surveyed area ~664 arcmin^2), we study the evolution of the stellar mass conte[...]texto impreso
Gil de Paz, Armando ; Muñoz Mateos, Juan Carlos ; otros, ... | American Astronomical Society | 2011-03-01If thick disks are ubiquitous and a natural product of disk galaxy formation and/or evolution processes, all undisturbed galaxies that have evolved during a significant fraction of a Hubble time should have a thick disk. The late-type spiral gal[...]texto impreso
Koda, Jin ; Yagi, Masafumi ; Boissier, Samuel ; Gil de Paz, Armando ; Imanishi, Masatoshi ; Meyer, Jennifer Donovan ; Madore, Barry F. ; Thilker, David A. | American Astronomical Society | 2012-04-10We report deep Subaru H? observations of the extended ultraviolet (XUV) disk of M83. These new observations enable the first complete census of very young stellar clusters over the entire XUV disk. Combining Subaru and Galaxy Evolution Explorer [...]texto impreso
NGC 4013 is a nearby Sb edge-on galaxy known for its "prodigious" H I warp and its "giant" tidal stream. Previous work on this unusual object shows that it cannot be fitted satisfactorily by a canonical thin+thick disk structure. We have produce[...]texto impreso
Most, if not all, disk galaxies have a thin (classical) disk and a thick disk. In most models thick disks are thought to be a necessary consequence of the disk formation and/or evolution of the galaxy. We present the results of a study of the th[...]texto impreso
We present images of NGC 7331 obtained with GALEX and Spitzer, tracing UV and IR signatures of star formation. NGC 7331's morphology at 8-850 ?m is dominated by a central dust ring. This structure is a vigorous site of star formation (hosting on[...]texto impreso
New Galaxy Evolution Explorer (GALEX) observations have detected significant far-UV (FUV; 1530 Å) and near-UV (NUV; 2310 Å) emission from stellar substructures within the tidal tails of four ongoing galaxy mergers. The UV-bright regions are opti[...]texto impreso
The recent star formation (SF) in the early-type spiral galaxy M81 is characterized using imaging observations from the far-ultraviolet to the far-infrared. We compare these data with models of the stellar, gas, and dust emission for subgalactic[...]texto impreso
The mechanism causing breaks in the radial surface brightness distribution of spiral galaxies is not yet well known. Despite theoretical efforts, there is not a unique explanation for these features and the observational results are not conclusi[...]texto impreso
We have performed two-dimensional multicomponent decomposition of 144 local barred spiral galaxies using 3.6 ?m images from the Spitzer Survey of Stellar Structure in Galaxies. Our model fit includes up to four components (bulge, disk, bar, and [...]texto impreso
Cortese, L. ; Boselli, A. ; Buat, V. ; Gavazzi, G. ; Boissier, S. ; Gil de Paz, Armando ; Seibert, M. ; Madore, B. F. ; Martin, D. C. | American Astronomical Society | 2006-01-20We analyze the dust attenuation properties of a volume-limited, optically selected sample of normal star-forming galaxies in nearby clusters as observed by GALEX. The internal attenuation is estimated using three independent indicators, namely, [...]texto impreso
Lee, Janice C. ; Gil de Paz, Armando ; Tremonti, Christy ; Kennicutt, Robert | Astronomical Society of the Pacific | 2011A great deal of our understanding of star formation in the local universe has been built upon an extensive foundation of H? observational studies. However, recent work in the ultraviolet (UV) with GALEX has shown that star formation rates (SFRs)[...]texto impreso
Boselli, A. ; Cortese, L. ; Deharveng, J. M. ; Gavazzi, G. ; Yi, K. S. ; Gil de Paz, Armando ; Seibert, M. ; Boissier, S. ; Donas, J. ; Lee, Y. W. ; Madore, B. F. ; Martin, D. C. ; Rich, R. M. ; Sohn, Y. J. | American Astronomical Society | 2005-08-10We study the UV properties of a volume-limited sample of early-type galaxies in the Virgo Cluster combining new GALEX far-ultraviolet (1530 Å) and near-ultraviolet (2310 Å) data with spectrophotometric data available at other wavelengths. The sa[...]texto impreso
García Vargas, M. L. ; Pérez Calpena, A. ; Gallego Maestro, Jesús ; Gil de Paz, Armando ; Sánchez Blanco, E. ; Martínez Delgado, I. ; Maldonado Medina, M. ; Zamorano Calvo, Jaime | Spie-Int Soc Optical Engineering | 2012The goal of VIENTOS project is to analyze pupil innovative systems that could be used in the new generation of instruments for the large telescopes. This study tries to identify the current scientific needs, to understand why some of them have n[...]texto impreso
Stellar bars can lead to gas inflow toward the center of a galaxy and stimulate nuclear star formation. However, there is no compelling evidence on whether they also feed a central supermassive black hole: by measuring the fractions of barred ac[...]