Astrophysical: Supernovae

  • Publication
    A tale of two GRB-SNe at a common redshift of z=0.54
    We present ground-based and Hubble Space Telescope optical observations of the optical transients (OTs) of long-duration Gamma Ray Bursts (GRBs) 060729 and...
  • Publication
    A Unique Star in the Outer Halo of the Milky Way
    As part of a program to measure abundance ratios in stars beyond 15 kpc from the Galactic center, we have discovered a metal-poor star in the outer halo with a...
  • Publication
    Active galactic nuclei and nuclear starbursts.
    The Starburst model for radio-quiet Active Galactic Nuclei (AGN) postulates that the activity seen in most AGN is powered solely by young stars and compact...
  • Publication
    An early-time infrared and optical study of the Type Ia Supernova 1998bu in M96
    We present first-season infrared (IR) and optical photometry and spectroscopy of the Type Ia Supernova 1998bu in M96. We also report optical polarimetry of this...
  • Publication
    An early-time infrared and optical study of the Type IA supernovae SN 1994D and 1991T
    We present early-time infrared (IR) and optical spectroscopy, and optical photometry, of the Type Ia supernova 1994D. These observations provide the most...
  • Publication
    An HST Study of the Supernovae Accompanying GRB 040924 and GRB 041006
    We present the results from a Hubble Space Telescope ACS study of the supernovae (SNe) associated with gamma-ray bursts (GRBs) 040924 (z=0.86) and 041006 (z=0...
  • News
    Astronomers discover first supernova explosion of a Wolf-Rayet star
    An international study, with the participation of researchers from the Gran Telescopio Canarias (GTC or Grantecan) affiliated to the Instituto de Astrofísica de...
  • Publication
    AT 2019abn: multi-wavelength observations over the first 200 days
    Context. AT 2019abn was discovered in the nearby M51 galaxy by the Zwicky Transient Facility at more than two magnitudes and around three weeks prior to its...
  • Publication
    AT2025ulz and S250818k: Zooming in with the Hubble Space Telescope
    AT2025ulz is an optical/near-infrared transient discovered during follow-up of the candidate gravitational wave (GW) event S250818k. Its young age (≲1 day)...