Astrophysical: Supernovae

  • Publication
    Radio-size estimates of SN 1993J
    Supernova 1993J (SN 1993J) in M81, now classified as Type IIb, is a strongly emitting radio supernova whose size can be resolved and whose growth can be...
  • Publication
    Rates and delay times of Type Ia supernovae in the Dark Energy Survey
    We use a sample of 809 photometrically classified Type Ia supernovae (SNe Ia) discovered by the Dark Energy Survey (DES) along with 40 415 field galaxies to...
  • Publication
    Rates and properties of Type Ia supernovae in galaxy clusters within the dark energy survey
    We identify 66 photometrically classified Type Ia supernovae (SNe Ia) from the Dark Energy Survey (DES) that have occurred within red-sequence selected galaxy...
  • Publication
    SDSS J163030.58+423305.8: a 40-min orbital period detached white dwarf binary
    We report the discovery of a new detached, double white dwarf (WD) system with an orbital period of 39.8 min. We targeted SDSS J163030.58+423305.8 (hereafter...
  • Talk
    Searching for SNIa Companions in Galactic SNe: the case of SN 1006
    Type-Ia supernovae (SNIa) are believed to be thermonuclear explosions of accreting carbon-oxygen white dwarfs that reach the Chandrasekhar mass limit of about 1...
  • Publication
    Self-sustaining galactic winds in spiral galaxies with starburst nuclei
    In the circumnuclear zones of the disks of some spirals there is an absence of neutral interstellar hydrogen. A model is devised in which gaseous outflow is...
  • Publication
    Simultaneous polarization monitoring of supernovae SN 2008D/XT 080109 and SN 2007uy: isolating geometry from dust
    Context. The possible existence of a continuum encompassing the diversity of explosive stellar deaths, ranging from ordinary supernovae (SNe; lacking any sign...
  • Publication
    SN 1988A in M58 - A type II-P supernova with a high late-time luminosity
    SN 1988A is (with exception of the well-observed SN 1987A) the only type II SN for which observations of the late tail of the light curve are presently...
  • Publication
    SN 1988A in M58 - Departure from Co-56 decay 700 days after explosion
    Observations of SN 1988A in M58 are presented which show a remarkable departure from Co-56 decay in the optical light curve starting about 700 days since...