Journal: Astronomy and Astrophysics

  • Publication
    Weak-line T Tauri stars south of Taurus.
    We report on the discovery of 15 new weak-line T Tauri stars (wTTS) south of the Taurus molecular clouds based on the large database produced by the ROSAT All...
  • Publication
    WEAVE-StePS: A stellar population survey using WEAVE at WHT
    Context. The upcoming new generation of optical spectrographs on four-meter-class telescopes will provide valuable opportunities for forthcoming galaxy surveys...
  • Publication
    WeCAPP - Wendelstein Calar Alto pixellensing project I. Tracing dark and bright matter in M 31
    We present WeCAPP, a long term monitoring project searching for microlensing events towards M 31. Since 1997 the bulge of M 31 was monitored in two different...
  • Publication
    Westerlund 1 under the light of Gaia EDR3: Distance, isolation, extent, and a hidden population
    Context. The young massive cluster Westerlund 1 offers the promise of a grand laboratory for the study of high-mass star evolution, but its basic parameters are...
  • Publication
    WHaD diagram: Classifying the ionizing source with one single emission line
    Context. The usual approach to classify the ionizing source using optical spectroscopy is based on the use of diagnostic diagrams that compare the relative...
  • Publication
    What ignites on the neutron star of 4U 0614+091?
    The low-mass X-ray binary 4U 0614+091 is a source of sporadic thermonuclear (type I) X-ray bursts. We find bursts with a wide variety of characteristics in...
  • Publication
    What is the Milky Way outer halo made of?. High resolution spectroscopy of distant red giants
    In a framework where galaxies form hierarchically, extended stellar haloes are predicted to be an ubiquitous feature around Milky Way-like galaxies and to...
  • Publication
    When binaries keep track of recent nucleosynthesis. The Zr-Nb pair in extrinsic stars as an s-process diagnostic
    Context. Barium stars are s-process enriched giants. They owe their chemical peculiarities to a past mass transfer phase. During this phase they were polluted...
  • Publication
    When nature tries to trick us. An eclipsing eccentric close binary superposed on the central star of the planetary nebula M 3-2
    Bipolar planetary nebulae (PNe) are thought to result from binary star interactions and, indeed, tens of binary central stars of PNe have been found, in...