• Publication
    An evolved donor star in the long-period cataclysmic variable HS 0218+3229
    Context: We present time-resolved spectroscopy and photometry of HS 0218+3229, a new long-period cataclysmic variable discovered within the Hamburg Quasar...
  • Publication
    An Evolving Compact Jet in the Black Hole X-Ray Binary MAXI J1836–194
    We report striking changes in the broadband spectrum of the compact jet of the black hole transient MAXI J1836–194 over state transitions during its discovery...
  • Publication
    An example of the cancellation of magnetic fields during the decay of an active region
    A case of cancellation of magnetic fields is observed during the decay of a small active region. Three different sources of information were simultaneously used...
  • Publication
    An excess of damped Lyman α galaxies near quasi-stellar objects
    We present a sample of 33 damped Lyman α systems (DLAs) discovered in the Sloan Digital Sky Survey (SDSS) whose absorption redshifts (zabs) are within 6000 km s...
  • Publication
    An excess of massive stars in the local 30 Doradus starburst
    The 30 Doradus star-forming region in the Large Magellanic Cloud is a nearby analog of large star-formation events in the distant universe. We determined the...
  • Publication
    An excess of very bright stars in the inner bulge
    From an analysis of the stars remaining in central regions of the Galaxy after subtracting those belonging to the disc and the bulge, we deduce that the inner...
  • Publication
    An explanation for the Stokes V asymmetry in solar faculae
    The asymmetry in the Stokes V profile observed in solar faculae can be explained by assuming that the magnetic field increases with height while downflow speed...
  • Publication
    An extended low-density atmosphere around the Jupiter-sized planet WASP-193 b
    Gas giants transiting bright nearby stars provide crucial insights into planetary system formation and evolution mechanisms. Most of these planets show certain...
  • Publication
    An Extended Lyα Outflow from a Radio Galaxy at z = 3.7?
    Spatially resolved observations of active galactic nuclei (AGN) host galaxies undergoing feedback processes are one of the most relevant avenues through which...