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Povi?, M. ; Sánchez Portal, M. ; Pérez García, A. M. ; Bongiovanni, A. ; Cepa, J. ; Huertas Company, M. ; Lara López, M. A. ; Fernández Lorenzo, M. ; Ederoclite, A. ; Alfaro, E. ; Castañeda, H. ; Gallego Maestro, Jesús ; González Serrano, J. I. ; González, J. J. | EDP Sciencies | 2012-05Context. The connection between active galactic nuclei (AGN) and their host galaxies has been widely studied and found to be of great importance for providing answers to some fundamental questions related to AGN fuelling mechanisms, and both the[...]texto impreso
We present the results of a 2-D, two fluid (ions and neutrals) simulation of the ambipolar filamentation process, in which a magnetized, weakly ionized plasma is stirred by turbulence in the ambipolar frequency range. The higher turbulent veloci[...]texto impreso
In the course of our 870 ?m APEX/LABOCA follow-up of the Herschel Lensing Survey we have detected a source in AS1063 (RXC J2248.7-4431) that has no counterparts in any of the Herschel PACS/SPIRE bands, it is a Herschel “drop-out” with S_870/S_50[...]texto impreso
Evolutionary population synthesis models with different metallicities have been computed in order to interpret the observed Mg_2 and H?, line-strength indices in old stellar populations. Both indices are found to be quite insensitive to change[...]texto impreso
CCD images and near-IR observations of the nebular objects GGD 30 and GGD 31 are presented. The data have been used to study the morphology and physical nature of the nebulosities. GGD 30 is a reflection nebula illuminated by a low mass PMS star[...]texto impreso
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
Combi, J. A. ; Albacete Colombo, J. F. ; López Santiago, J. ; Romero, G. E. ; Sánchez Ayaso, E. ; Marti, J. ; Luque Escamilla, P. L. ; Pérez González, Pablo Guillermo ; Muñoz Arjonilla,, A. J. ; Sánchez Sutil, J. R. | EDP Sciencies | 2010-11Aims. We report results of an X-ray study of the supernova remnant (SNR) G344.7-0.1 and the point-like X-ray source located at the geometrical center of the SNR radio structure. Methods. The morphology and spectral properties of the remnant and [...]texto impreso
Crespo Chacón, I. ; Montes Gutiérrez, David ; García Álvarez, D. ; Fernández Figueroa, María José ; López Santiago, J. ; Foing, B. H. | EDP Sciencies | 2006-06We report the results of a high temporal resolution spectroscopic monitoring of the flare star AD Leo. During 4 nights, more than 600 spectra were taken in the optical range using the Isaac Newton Telescope (INT) and the Intermediate Dispersion [...]texto impreso
Fernández Figueroa, María José ; Montesinos, B. ; Castro Rubio, Elisa de ; Rego Fernández, Manuel ; Giménez, A. ; Reglero, V. | EDP Sciencies | 1986-11We report here new Ca II H and K emission line fluxes and equivalent widths for seven RSCVn binary systems, observed at several orbital phases. All the stars show enhanced chromospheric activity. With information from available spectra, an in d[...]texto impreso
Hernán Obispo, M. ; Castro Rubio, Elisa de ; Cornide Castro-Piñeiro, Manuel | EDP Sciencies | 2015-04Context. In a previous paper we reported a planetary companion to the young and very active K5Ve star BD+20 1790. We found that this star has a high level of stellar activity (log R'_HK = -3.7) that manifests in a plethora of phenomena (starspot[...]texto impreso
Castro Rubio, Elisa de ; Fernández Figueroa, María José ; Rego Fernández, Manuel ; Ponz, D. | EDP Sciencies | 1981Far ultraviolet emission lines in a sample of seven stars of spectral type later than F5 and different luminosity class have been analyzed to calculate the electron density and pressure in the formation region of the lines. Three different metho[...]texto impreso
Fernández Figueroa, María José ; Rego Fernández, Manuel ; Cornide Castro-Piñeiro, Manuel | EDP Sciencies | 1980The structure of the outer stellar regions is investigated for four G type dwarfs observed with the IUE satellite. Line fluxes of the Si II lines at 1817 Å, 1808 A, and 1309 Å and Si III at 1206 Å are used to obtain temperatures and electronic [...]texto impreso
Iglesias Páramo, J. ; Vílchez, J. M. ; Galbany, L. ; Sánchez, S. F. ; Rosales Ortega, F. F. ; Mast, D. ; García Benito, R. ; Husemann, B. ; Aguerri, J. A. L. ; Alves, J. ; Bekeraite, S. ; Bland-Hawthorn, J. ; Catalán Torrecilla, Cristina ; Amorim, A. L. de ; Lorenzo Cáceres, A. de ; Ellis, S. ; Falcón Barroso, J. ; Flores, H. ; Florido, E. ; Gallazzi, A. ; Gomes, J. M. ; González Delgado, R. M. ; Haines, T. ; Hernández Fernández, J. D. ; Kehrig, C. ; López Sánchez, A. R. ; Lyubenova, M. ; Marino, Raffaella Anna ; Mollá, M. ; Monreal Ibero, A. ; Mour?o, A. ; Papaderos, P. ; Rodrigues, M. ; Sánchez Blázquez, P. ; Spekkens, K. ; Stanishev, V. ; van de Ven, G. ; Walcher, C. J. ; Wisotzki, L. ; Zibetti, S. ; Ziegler, B. | EDP Sciencies | 2013-05This work investigates the effect of the aperture size on derived galaxy properties for which we H alpha ve spatially-resolved optical spectra. We focus on some indicators of star formation activity and dust attenuation for spiral galaxies that [...]texto impreso
Aims. Long gamma-ray bursts (LGRBs) are associated with the deaths of massive stars and might therefore be a potentially powerful tool for tracing cosmic star formation. However, especially at low redshifts (ztexto impreso
Spiral arms are the most singular features in disc galaxies. These structures can exhibit different patterns, namely grand design and flocculent arms, with easily distinguishable characteristics. However, their origin and the mechanisms shaping [...]
