Journal: Astronomy and Astrophysics

  • Publication
    Possible origin of the non-detection of metastable He I in the upper atmosphere of the hot Jupiter WASP-80b
    Aims: We aim to constrain the origin of the non-detection of the metastable He I triplet at ≈10 830 Å obtained for the hot Jupiter WASP-80b. Methods: We measure...
  • Publication
    Possible ring material around centaur (2060) Chiron
    We propose that several short-duration events observed in past stellar occultations by Chiron were produced by ring material. Some similarities between these...
  • Publication
    Post common envelope binaries from SDSS. IV. SDSS J121258.25-012310.1, a new eclipsing system
    From optical photometry we show that SDSS J121258.25-012310.1 is a new eclipsing, post common-envelope binary with an orbital period of 8.06 h and an eclipse...
  • Publication
    Post common envelope binaries from SDSS. VIII. Evidence for disrupted magnetic braking
    Context. The standard prescription of angular momentum loss in compact binaries assumes magnetic braking to be very efficient as long as the secondary star has...
  • Publication
    Post common envelope binaries from SDSS. XII. The orbital period distribution
    Context. The complexity of the common-envelope phase and of magnetic stellar wind braking currently limits our understanding of close binary evolution. Because...
  • Publication
    Post common envelope binaries from SDSS. XIII. Mass dependencies of the orbital period distribution
    Context. Post-common-envelope binaries (PCEBs) consisting of a white dwarf (WD) and a main-sequence secondary star are ideal systems to constrain models of...
  • Publication
    Post first dredge-up [C/N] ratio as age indicator. Theoretical calibration
    We performed a detailed analysis of the use of [C/N] measured in red giant branch stars between the completion of the first dredge up and the red giant branch...
  • Publication
    Post-AGB stars with hot circumstellar dust: binarity of the low-amplitude pulsators
    Context: The influence of binarity on the late stages of stellar evolution remains an open issue. Aims: While the first binary post-AGB stars were...
  • Publication
    Power spectra comparison between GOLF and spatially masked MDI velocity signals
    The Global Oscillations at Low Frequency (GOLF) and the Michelson Doppler Imager (MDI) instruments aboard the Solar and Heliospheric Observatory (SOHO) give an...