Astrophysical: Supernovae

  • Publication
    The dark energy survey 5-yr photometrically identified type Ia supernovae
    As part of the cosmology analysis using Type Ia Supernovae (SN Ia) in the Dark Energy Survey (DES), we present photometrically identified SN Ia samples using...
  • Publication
    The Dark Energy Survey supernova programme: modelling selection efficiency and observed core-collapse supernova contamination
    The analysis of current and future cosmological surveys of Type Ia supernovae (SNe Ia) at high redshift depends on the accurate photometric classification of...
  • Talk
    The death and afterlife of massive stars
    Observations of supernovae and gamma-ray bursts show that massive stars end their lives with a wide variety of properties. For supernovae, mass loss plays a...
  • 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...