Publicaciones

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  • On the variable spectrum of HD 45677 (FS Canis Majoris)
    { We have studied high-resolution optical spectra of the peculiar B[e] star HD 45677 (FS CMa) observed during 3 nights in October 1995. The main results of our analysis can be summarized as follows: (1) The complex and variable profiles of Hβ indicate the presence of matter outflow. Three blue-shifted absorption components have been detected. (2)
    Israelian, G. et al.

    Fecha de publicación:

    12
    1997
    Número de citas
    7
  • On the widths of emission lines in spectra of WC9 stars of different kinds
    Emission lines in the spectra of WC9 stars have been studied. It is shown that there are clear differences between the spectra of BD + 30 3639 and the central star of He2-99. It is argued that there are no systematic spectral differences between the WC9 CSPN and the Pop.I WC9 stars: both kinds of WC9 stars show a substantial and overlapping range
    Mendez, R. H. et al.

    Fecha de publicación:

    12
    1991
    Número de citas
    17
  • Open cluster Dolidze 25: Stellar parameters and the metallicity in the Galactic anticentre
    Context. The young open cluster Dolidze 25, in the direction of the Galactic anticentre, has been attributed a very low metallicity, with typical abundances between -0.5 and -0.7 dex below solar. Aims: We intend to derive accurate cluster parameters and accurate stellar abundances for some of its members. Methods: We have obtained a large sample of
    Negueruela, I. et al.

    Fecha de publicación:

    12
    2015
    Número de citas
    11
  • OpenWD: An Open-Source White Dwarf Code
    Almost every star in our galaxy will eventually become a white dwarf. Since they are relatively simple compared to main-sequence stars, white dwarfs provide one of the best opportunities for learning about stellar structure and evolution. Studies of pulsating white dwarfs give us the opportunity to learn about their internal composition and
    Metcalfe, T. S. et al.

    Fecha de publicación:

    12
    2002
    Número de citas
    1
  • Optical and 21-cm observations of high-velocity gas towards subdwarfs in the halo and early-type stars in the disk
    We present a study of high-velocity gas in the direction of 13 halo sub-dwarfs located at absolute value of z approximately equals 0.5-2 kpc and of 8 early-type stars in the Galactic disk at d approximately equals 1-4 kpc. For each line of sight of our sample we collected Ca II and Na I absorption spectra with the 2.5-m Isaac Newton Telescope at La
    Centurion, M. et al.

    Fecha de publicación:

    12
    1994
    Número de citas
    14
  • Optical and EUV observations of solar flare kernels
    We present high-resolution spectral observations, covering the entire optical region (3800-9000 Å), of a solar flare observed during a multi-wavelength campaign. The flare, recorded on 2002 January 11, was a medium solar flare event (GOES class C7.5). The spectral observations were carried out using the Hamilton echelle spectrograph on the coudé
    García-Alvarez, D. et al.

    Fecha de publicación:

    12
    2005
    Número de citas
    5