Journal: Astronomy and Astrophysics

  • Publication
    A dynamic view of V Hydrae. Monitoring of a spectroscopic-binary AGB star with an alkaline jet
    Context. The well studied carbon star V Hydrae is known to exhibit a complex asymmetric environment made of a dense equatorial wind and high-velocity outflows...
  • Publication
    A dynamical study of the circumstellar gas in UX Orionis
    We present the results of a high spectral resolution (lambda / Delta lambda = 49 000) study of the circumstellar (CS) gas around the intermediate mass, pre-main...
  • Publication
    A fast version of the k-means classification algorithm for astronomical applications
    Context. K-means is a clustering algorithm that has been used to classify large datasets in astronomical databases. It is an unsupervised method, able to cope...
  • Publication
    A fast, very-high-energy γ-ray flare from BL Lacertae during a period of multi-wavelength activity in June 2015
    The mechanisms producing fast variability of the γ-ray emission in active galactic nuclei (AGNs) are under debate. The MAGIC telescopes detected a fast, very...
  • Publication
    A few StePS forward in unveiling the complexity of galaxy evolution: light-weighted stellar ages of intermediate-redshift galaxies with WEAVE
    Context. The upcoming new generation of optical spectrographs on four-meter-class telescopes, with their huge multiplexing capabilities, excellent spectral...
  • Publication
    A four-hours long burst from Serpens X-1
    During a serendipitous observation of the BeppoSAX Wide Field Cameras, a very long type I X-ray burst was observed from the low mass X-ray binary Serpens X-1...
  • Publication
    A frequency comb calibrated solar atlas
    Context. The solar spectrum is a primary reference for the study of physical processes in stars and their variation during activity cycles. High resolution...
  • Publication
    A fresh look at the seismic spectrum of HD49933: analysis of 180 days of CoRoT photometry
    Context: Solar-like oscillations have now been observed in several stars, thanks to ground-based spectroscopic observations and space-borne photometry. CoRoT...
  • Publication
    A full transit of v<SUP>2</SUP> Lupi d and the search for an exomoon in its Hill sphere with CHEOPS
    The planetary system around the naked-eye star v 2 Lupi (HD 136352; TOI-2011) is composed of three exoplanets with masses of 4.7, 11.2, and 8.6 Earth masses (M...