Journal: Astronomy and Astrophysics

  • Publication
    Granulation in K-type dwarf stars. II. Hydrodynamic simulations and 3D spectrum synthesis
    Aims: To explore the impact of surface inhomogeneities on stellar spectra, granulation models need to be computed. Ideally, the most fundamental characteristics...
  • Publication
    Gray transits of WD 1145+017 over the visible band
    We have observed several relatively deep transits of the white dwarf WD 1145+017 with the Gran Telescopio Canarias (GTC) in the wavelength range 480 to 920 nm...
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    GRB 050904 at redshift 6.3: observations of the oldest cosmic explosion after the Big Bang
    We present optical and near-infrared observations of the afterglow of the gamma-ray burst GRB 050904. We derive a photometric redshift z = 6.3, estimated from...
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    GRB 051028: an intrinsically faint gamma-ray burst at high redshift?
    Aims.We present multiwavelength observations of the gamma-ray burst GRB 051028 detected by HETE-2 in order to derive its afterglow emission parameters and to...
  • Publication
    GRB 060605: multi-wavelength analysis of the first GRB observed using integral field spectroscopy
    The long and relatively faint gamma-ray burst GRB 060605 detected by Swift/BAT lasted about 20 s. Its afterglow could be observed with Swift/XRT for nearly 1...
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    GRB 161219B/SN 2016jca: A low-redshift gamma-ray burst supernova powered by radioactive heating
    Since the first discovery of a broad-lined type Ic supernova (SN) with a long-duration gamma-ray burst (GRB) in 1998, fewer than fifty GRB-supernovae (SNe) have...
  • Publication
    GRB010222: Afterglow emission from a rapidly decelerating shock
    The GRB010222 optical and near-infrared (NIR) afterglow was monitored at the TNG and other Italian telescopes starting ~ 1 day after the high-energy prompt...
  • Publication
    Greening of the brown-dwarf desert. EPIC 212036875b: a 51 MJ object in a 5-day orbit around an F7 V star
    Context. Although more than 2000 brown dwarfs have been detected to date, mainly from direct imaging, their characterisation is difficult due to their faintness...
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    Ground-based CCD astrometry with wide field imagers. III. WFI@2.2m proper-motion catalog of the globular cluster ω Centauri
    Context: ω Centauri is the most well studied Galactic Globular Cluster because of its numerous puzzling features: significant dispersion in metallicity...