Journal: Astronomy and Astrophysics

  • Publication
    A Polarized Accretion Disk Flare in OJ:287
    A very rapid swing in the polarization position angle (PA) in the optical region was observed in blazar OJ 287 during one night of our five nights UBVRI...
  • Publication
    A precise architecture characterization of the π Mensae planetary system★
    Context. The bright star π Men was chosen as the first target for a radial velocity follow-up to test the performance of ESPRESSO, the new high-resolution...
  • Publication
    A prediction about the age of thick discs as a function of the stellar mass of the host galaxy
    One of the suggested thick disc formation mechanisms is that they were born quickly and in situ from a turbulent clumpy disc. Subsequently, thin discs formed...
  • Publication
    A preliminary database of DENIS point sources
    This paper announces the release at CDS of a substantial set of point sources detected by the DENIS project. DENIS is the first astronomical survey of the...
  • Publication
    A Pristine-UNIONS view on the Galaxy: Kinematics of the distant spur feature of the Sagittarius stream traced by blue horizontal branch stars
    Context. Providing a detailed picture of the Sagittarius stream offers important constraints on the build-up of the Galactic halo as well as its gravitational...
  • Publication
    A proto brown dwarf candidate in Taurus
    Aims. We search for brown dwarfs at the Class 0/I evolutionary stage, or proto brown dwarfs. Methods: We present a multi wavelength study, ranging from optical...
  • Publication
    A puffy polar planet. The low density, hot Jupiter TOI-640 b is on a polar orbit
    TOI-640 b is a hot, puffy Jupiter with a mass of 0.57 ± 0.02 M J and radius of 1.72 ± 0.05 R J, orbiting a slightly evolved F-type star with a separation of 6...
  • Publication
    A pulse-timing model for pulsars in massive eclipsing binaries. Delays caused by high ratios between the pulsar period and orbital length.
    We study the delay induced by gravitational light bending in the arrival times of signals emitted by an anisotropic source in rotation (pulsar). The shift of...
  • Publication
    A qualitative interpretation of the second solar spectrum of Ce ll
    This is a theoretical investigation on the formation of the linearly polarized line spectrum of ionized cerium in the sun. We calculate the scattering line...