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Autor Fernández Figueroa, María José |
Documentos disponibles escritos por este autor (44)
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Montes Gutiérrez, David ; Latorre, A. ; Fernández Figueroa, María José | Astronomical Society of the Pacific (ASP) | 2000We have compiled a catalog of late-type stars (F5-M) members of representative, young disk, stellar kinematic groups: the Local Association (20-150 Myr), Ursa Mayor group (300 Myr), Hyades supercluster (600 Myr), IC 2391 supercluster (35 Myr), a[...]![]()
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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. [...]![]()
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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[...]![]()
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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[...]![]()
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Montes Gutiérrez, David ; Fernández Figueroa, María José ; Castro Rubio, Elisa de ; Sanz Forcada, J. | EDP Sciences | 1997-10This is the first paper of a series aimed at studying the chromosphere of active binary systems using the information provided for several optical spectroscopic features. Simultaneous H_?, Na I D_1, D_2, and He I D_3 spectroscopic observations a[...]![]()
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Montes Gutiérrez, David ; Sanz Forcada, J. ; Fernández Figueroa, María José ; Castro Rubio, Elisa de ; Poncet, A. | EDP Sciencies | 1998-02-01The star EZ Peg, long ago classified as cataclysmic variable, has been shown to be a chromospherically active binary system of the RS CVn-type. In this paper we have analysed, using the spectral subtraction technique, simultaneous spectroscopic [...]![]()
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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[...]![]()
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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[...]![]()
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Gálvez, M. C. ; Montes Gutiérrez, David ; Fernández Figueroa, María José ; López Santiago, Javier ; Castro Rubio, Elisa de ; Cornide Castro-Piñeiro, Manuel | EDP Sciencies | 2002-07We present high resolution echelle spectra taken during four observing runs from 1999 to 2001 of the recently X-ray/EUV selected chromospherically active binary BK Psc (2RE J0039+103). Our observations confirm the single-lined spectroscopic bina[...]![]()
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Gálvez, M. C. ; Montes Gutiérrez, David ; Fernández Figueroa, María José ; Castro Rubio, Elisa de ; Cornide Castro-Piñeiro, Manuel | EDP Sciencies | 2007-09Context. This is the fifth paper in a series aimed at studying the chromospheres of active binary systems using several optical spectroscopic indicators to obtain or improve orbital solution and fundamental stellar parameters. Aims. We present h[...]![]()
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Sanz Forcada, J. ; Montes Gutiérrez, David ; Fernández Figueroa, María José ; Castro Rubio, Elisa de ; Cornide Castro-Piñeiro, Manuel | Astronomical Society of the Pacific | 1999We present here a continuation of our ongoing project of multiwavelength optical observations aimed at studying the chromosphere of active binary systems using the information provided for several optical spectroscopic features that are formed a[...]![]()
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Gálvez, M. C. ; Montes Gutiérrez, David ; Fernández Figueroa, María José ; Castro Rubio, Elisa de ; Cornide Castro-Piñeiro, Manuel | IOP publishing ltd | 2009-04This paper describes a multiwavelength optical study of chromospheres in two X-ray/EUV-selected active binary stars with strong H alpha emission, V789 Mon (2RE J0725-002) and GZ Leo (2RE J1101+223). The goal of the study is to determine radial v[...]![]()
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Sánchez Contreras, C. ; Bujarrabal, V. ; Miranda, L. F. ; Fernández Figueroa, María José | EDP Sciencies | 2000-03We present optical long-slit spectra and complementary broad and narrow band images of the bipolar protoplanetary nebula OH231.8+4.2. Absolute J2000 coordinates have been calculated for our maps from the position of nearby stars. Our maps of the[...]![]()
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López Santiago, Javier ; Montes Gutiérrez, David ; Fernández Figueroa, María José ; Ramsey, L. W. | EDP Sciencies | 2003-12High resolution echelle spectra of PW And (HD 1405) have been taken during eight observing runs from 1999 to 2002. The detailed analysis of the spectra allow us to determine its spectral type (K2V), mean heliocentric radial velocity (V_hel = - 1[...]![]()
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Cornide Castro-Piñeiro, Manuel ; Fernández Figueroa, María José ; Castro Rubio, Elisa de ; Armentia, J. A. ; Reglero, V. | IOP publishing ltd | 1992-04High dispersion spectra have been obtained in order to study the activity level of ten barium stars by means of the Ca II H and K emission flux, looking for a relation between barium intensity index and activity. Absolute magnitudes obtained fro[...]