Journal: Astronomy and Astrophysics

  • Publication
    Discovery of the optical counterpart to the X-ray pulsar SAX J2103.5+4545
    We report optical and infrared photometric and spectroscopic observations that identify the counterpart to the 358.6-s X-ray transient pulsar SAX J2103.5+4545...
  • Publication
    Discovery of the X-ray burster SAX J1752.3-3138
    During a 50 ks monitoring observation of the Galactic bulge performed in September 1999 by the Wide Field Cameras on board the BeppoSAX satellite, an X-ray...
  • Publication
    Discovery of three nearby L dwarfs in the Southern Sky
    We report the discovery of three L dwarfs in the solar vicinity within 30 parsecs. These objects were originally found as proper motion objects from a...
  • Publication
    Discovery of two warm mini-Neptunes with contrasting densities orbiting the young K3V star TOI-815
    We present the discovery and characterization of two warm mini-Neptunes transiting the K3V star TOI-815 in a K-M binary system. Analysis of its spectra and...
  • Publication
    Discovery of ultra-compact nuclear rings in three spiral galaxies
    Ring-shaped morphologies of nuclear star-forming regions within the central 40{-}200 pc of disk galaxies have been barely resolved so far in three composite Sy...
  • Publication
    Discovery of very high energy gamma-ray emission from the blazar 1ES 1727+502 with the MAGIC Telescopes
    Motivated by the prediction of a high TeV luminosity we investigated whether the blazar 1ES 1727+502 (z = 0.055) is emitting very high energy (VHE, E > 100 GeV)...
  • Publication
    Discovery of very nearby ultracool dwarfs from DENIS
    We report new spectroscopic results, obtained with UKIRT/CGS4, of a sample of 14 candidate ultracool dwarfs selected from the DENIS (Deep Near-Infrared Survey...
  • Publication
    Discovery of VHE γ-ray emission from the BL Lacertae object B3 2247+381 with the MAGIC telescopes
    Aims: We study the non-thermal jet emission of the BL Lac object B3 2247+381 during a high optical state. Methods: The MAGIC telescopes observed the source...
  • Publication
    Discovery of VHE γ-rays from the blazar 1ES 1215+303 with the MAGIC telescopes and simultaneous multi-wavelength observations
    Context. We present the discovery of very high energy (VHE, E > 100 GeV) γ-ray emission from the BL Lac object 1ES 1215+303 by the MAGIC telescopes and...