Astrofísicas: Estrellas A

  • Publicación
    A deeply embedded companion to LKH-alpha198
    The region around the Herbig Ae/Be star LKH-alpha198 was imaged at 10 micrometer with the CAMIRAS camera at the Canada-France-Hawaii Telescope and the Nordic...
  • Publicación
    High-speed infrared photometry of rapidly oscillating AP (roAp) stars - 10 Aquilae
    High-speed photometric observations of the recently discovered roAp star 10 Aql were performed in the J(1.22-micrometer) filter. A total of 47.2 hours of data...
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    Observed and computed UV spectral distribution of A and F stars
    An automatic and fast procedure was implemented to determine Te and log g from the comparison of the UV S 2/68 spectra with the Kurucz models. The method has...
  • Publicación
    On the Characterization of GJ 504: A Magnetically Active Planet-host Star Observed by the Transiting Exoplanet Survey Satellite (TESS)
    We present the results of the analysis of the photometric data collected in long- and short-cadence mode by the Transiting Exoplanet Survey Satellite for GJ 504...
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    On the search for transition zone lines in late A type stars
    Observations of the 1400-1800 A region in late A type stars are presented, which were obtained using the IUE satellite at low and high resolution. The...
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    Search for radial velocity variations in rapidly oscillating AP stars using the Fabry-Perot interferometric stellar oscillation spectrometer
    Radial velocity measurements of a group of Ap stars were obtained in May and December 1987 using a Fabry-Perot interferometric stellar oscillation spectrometer...
  • Publicación
    The magnetic field of the AP star Epsilon UMa
    The magnetic field of the Ap star Epsilon UMa was measured using the Zeeman-Doppler Imaging method. Ultrahigh S/N polarized profiles of the 4923 A magnetically...
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    The nature of the cometary nebula 1548 C27
    Results are presented on optical and near-IR photometry of cometary nebula 1548 C27, together with associated high and intermediate resolution spectroscopy of...
  • Publicación
    The peculiar nature of BD + 24 deg 676
    The H-alpha emission star BD + 24 deg 676, formerly classified as a T Tauri star and more recently as a Herbig Ae star, has been observed at moderately high...