Astrophysical: Supernovae

  • Publication
    The early nucleosynthesis of O and Fe
    The new observational O/Fe vs Fe/H relationship in halo dwarfs is analyzed in terms of a model of chemical evolution for the solar neighborhood. The role of...
  • Publication
    The effect of environment on Type Ia supernovae in the Dark Energy Survey three-year cosmological sample
    Analyses of Type Ia supernovae (SNe Ia) have found puzzling correlations between their standardized luminosities and host galaxy properties: SNe Ia in high-mass...
  • Publication
    The ELM Survey. IV. 24 White Dwarf Merger Systems
    We present new radial velocity and X-ray observations of extremely low mass (ELM, ~0.2 M &sun;) white dwarf (WD) candidates in the Sloan Digital Sky Survey Data...
  • Publication
    The evolution of luminous red nova AT 2017jfs in NGC 4470
    We present the results of our photometric and spectroscopic follow-up of the intermediate-luminosity optical transient AT 2017jfs. At peak, the object reaches...
  • Publication
    The Fast X-Ray Transient XRT 210423 and Its Host Galaxy
    Fast X-ray Transients (FXTs) are X-ray flares with durations ranging from a few hundred seconds to a few hours. Possible origins include the tidal disruption of...
  • Publication
    The first year of SN 2004dj in NGC 2403
    New BV RI photometry and optical spectroscopy of the Type IIp supernova 2004dj in NGC 2403, obtained during the first year since discovery, are presented. The...
  • Publication
    The GRB 060218/SN 2006aj event in the context of other gamma-ray burst supernovae
    The supernova SN 2006aj associated with GRB 060218 is the second-closest GRB-SN observed to date (z=0.033). We present Very Large Telescope, Liverpool Telescope...
  • Talk
    The GRB-supernova connection. Or is there any?
    Long suspected on theoretical grounds and supported by tantalising observational evidence, the connection between supernovae and gamma-ray bursts was definitely...
  • Publication
    The Highly Energetic Expansion of SN 2010bh Associated with GRB 100316D
    We present the spectroscopic and photometric evolution of the nearby (z = 0.059) spectroscopically confirmed Type Ic supernova, SN 2010bh, associated with the...