Journal: Astronomy and Astrophysics

  • Publication
    Discovery of a very cool object with extraordinarily strong Hmathsf α emission
    We report on the finding of the strongest Hα emission - pseudoequivalent width of 705 Å- known so far in a young, late type dwarf. This object, named as S Ori...
  • Publication
    Discovery of a very luminous megamaser during a radio flare in the Seyfert 2 galaxy Mrk 348
    We report the detection of a new H_2O megamaser in the Seyfert 2 galaxy Mrk 348 with the MPIfR 100 m telescope in Effelsberg. With an apparent isotropic...
  • Publication
    Discovery of a widely separated binary system of very low mass stars
    We report our discovery of a nearby wide binary system, LP 714-37 AB. Phan-Bao et al. identified LP 714-37 as a mid-M dwarf during a cross-identification of the...
  • Publication
    Discovery of a young and massive stellar cluster. Spectrophotometric near-infrared study of Masgomas-1
    Context. Recent near-infrared data have contributed to the discovery of new (obscured) massive stellar clusters and massive stellar populations in previously...
  • Publication
    Discovery of an old nova remnant in the Galactic globular cluster M 22
    A nova is a cataclysmic event on the surface of a white dwarf in a binary system that increases the overall brightness by several orders of magnitude. Although...
  • Publication
    Discovery of close binary central stars in the planetary nebulae NGC 6326 and NGC 6778
    We present observations proving the close binary nature of the central stars belonging to the planetary nebulae (PNe) NGC 6326 and NGC 6778. Photometric...
  • Publication
    Discovery of long-period magnetic field oscillations and motions in isolated sunspots
    We analyse the temporal evolution of the inclination component of the magnetic field vector for the penumbral area of 25 isolated sunspots. Compared to previous...
  • Publication
    Discovery of optical and infrared accretion disc wind signatures in the black hole candidate MAXI J1348-630
    MAXI J1348-630 is a low mass X-ray binary discovered in 2019 during a bright outburst. During this event, the system experienced both hard and soft states...
  • Publication
    Discovery of slow X-ray pulsations in the high-mass X-ray binary 4U 2206+54
    Context: The source 4U 2206+54 is one of the most enigmatic high-mass X-ray binaries. In spite of intensive searches, X-ray pulsations have not been detected in...