Astrophysical: A stars

  • Publication
    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...

  • Publication
    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...

  • Publication
    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...

  • Publication
    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...

  • Publication
    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...

  • Publication
    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...

  • Publication
    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...

  • Publication
    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...

  • Publication
    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...