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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
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
Montes Gutiérrez, David ; Castro Rubio, Elisa de ; Fernández Figueroa, María José ; Cornide Castro-Piñeiro, Manuel | EDP Sciences | 1995-12We present new spectroscopic observations in the Ca II H & K line region for a sample of 28 chromospherically active binary systems (RS CVn and BY Dra classes), with different activity levels. By using the spectral subtraction technique (subtrac[...]texto impreso
Fernández Villacañas, J. L. ; Rego Fernández, Manuel ; Cornide Castro-Piñeiro, Manuel | IOP publishing ltd | 1990-06An intermediate-dispersion abundance analysis has been carried out on a sample of 21 barium and 14 comparison stars. The excess of barium over iron has been used as the most representative indicator of peculiarity. These excesses are higher in t[...]texto impreso
Fernández Figueroa, María José ; Montes Gutiérrez, David ; Castro Rubio, Elisa de ; Cornide Castro-Piñeiro, Manuel | University Chicago Press | 1994-01We report high-resolution observations of the Ca II H and K and Balmer H_? lines in 53 chromospherically active binary systems including the RS Canum Venaticorum binaries (RS CVn) and BY Draconis (BY Dra) classes. The rotational periods of the s[...]texto impreso
Fernández Figueroa, María José ; Montes Gutiérrez, David ; Castro Rubio, Elisa de ; Cornide Castro-Piñeiro, Manuel | University Chicago Press | 1994-01We report high-resolution observations of the Ca II H and K and Balmer H? lines in 53 chromospherically active binary systems including the RS Canum Venaticorum binaries (RS CVn) and BY Draconis (BY Dra) classes. The rotational periods of the sa[...]texto impreso
Hernán Obispo, M. ; Gálvez Ortiz, M. C. ; Anglada Escudé, G. ; Kane, S. R. ; Barnes, J. R. ; Castro Rubio, Elisa de ; Cornide Castro-Piñeiro, Manuel | EDP Sciencies | 2010-03Context. BD+20 1790 is a young active, metal-rich, late-type K5Ve star. We have undertaken a study of stellar activity and kinematics for this star over the past few years. Previous results show a high level of stellar activity, with the presenc[...]texto impreso
Caballero, J. A. ; Cornide Castro-Piñeiro, Manuel ; Castro Rubio, Elisa de | Wiley-VCH Verlag GmbH | 2010-03We look for high-amplitude variable young stars in the open clusters and associations of the Orion Belt. We use public data from the ASAS-3 Photometric V -band Catalogue of the All Sky Automated Survey, infrared photometry from the 2MASS and IRA[...]texto impreso
Gómez de Castro, Ana I. ; López Santiago, Javier ; López Martínez, Fátima ; Sánchez, Néstor ; Sestito, Paola ; Castro Rubio, Elisa de ; Cornide Castro-Piñeiro, Manuel ; Yáñez Gestoso, Javier | University Chicago Press | 2015-02In this work, we identify 63 bona fide new candidates to T Tauri stars (TTSs) in the Taurus-Auriga region, using its ultraviolet excess as our baseline. The initial data set was defined from the GALEX all sky survey (AIS). The GALEX satellite ob[...]texto impreso
López Santiago, Javier ; Montes Gutiérrez, David ; Gálvez Ortiz, M. C. ; Crespo Chacón, I. ; Martínez Arnáiz, R. M. ; Fernández Figueroa, María José ; Castro Rubio, Elisa de ; Cornide Castro-Piñeiro, Manuel | EDP Sciencies | 2010-05Aims. We present a compilation of spectroscopic data from a survey of 144 chromospherically active young stars in the solar neighborhood, which may be used to investigate different aspects of its formation and evolution in terms of kinematics an[...]texto impreso
Montes Gutiérrez, David ; López Santiago, Javier ; Gálvez, M. C. ; Fernández Figueroa, María José ; Castro Rubio, Elisa de ; Cornide Castro-Piñeiro, Manuel | Wiley | 2001-11-21This is the first paper of a series aimed at studying the properties of late-type members of young stellar kinematic groups. We concentrate our study on classical young moving groups such as the Local Association (Pleiades moving group, 20-150 M[...]texto impreso
Montes Gutiérrez, David ; Martín, E. L. ; Fernández Figueroa, María José ; Cornide Castro-Piñeiro, Manuel ; Castro Rubio, Elisa de | EDP Sciences | 1997-06In this work we present spectroscopic observations centered in the spectral lines most widely used as optical indicators of chromospheric activity (H?, H?, CaII H & K, and HeI D_3) in a sample of F, G, K and M chromospherically inactive stars. [...]texto impreso
Fernández Figueroa, María José ; Barrado, D. ; Castro Rubio, Elisa de ; Cornide Castro-Piñeiro, Manuel | EDP Sciencies | 1993-07Observations of the Li i doublet at 6707.8 angstrom for a sample of active binary systems RS CVn and By Dra have been carried out at the Calar Alto Observatory with the 2.2 m telescope. In addition, some single stars with different chromospheric[...]texto impreso
Fernández Figueroa, María José ; Barrado y Navascués, D. ; Castro Rubio, Elisa de ; Cornide Castro-Piñeiro, Manuel | EDP Sciencies | 1993-07Observations of the Li i doublet at 6707.8 angstrom for a sample of active binary systems RS CVn and By Dra have been carried out at the Calar Alto Observatory with the 2.2 m telescope. In addition, some single stars with different chromospheric[...]texto impreso
Montes Gutiérrez, David ; Fernández Figueroa, María José ; Castro Rubio, Elisa de ; Cornide Castro-Piñeiro, Manuel ; Latorre, A. ; Sanz Forcada, J. | EDP Sciences | 2000-10This is the third paper of a series aimed at studying the chromosphere of active binary systems using the information provided for several optical spectroscopic features. High resolution echelle spectra including all the optical chromospheric ac[...]
