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A reconnaissance of the possible donor stars to the Kepler supernova
Wolfgang E. Kerzendorf, Michael Childress, Julia Scharwaechter +2
The identity of Type Ia supernova progenitors remains a mystery, with various lines of evidence pointing towards either accretion from a non-degenerate companion, or the rapid merg…
High-Velocity Features in Type Ia Supernova Spectra
Michael J. Childress, Alexei V. Filippenko, Mohan Ganeshalingam +1
We use a sample of 58 low-redshift (z <= 0.03) Type Ia supernovae (SNe Ia) having well-sampled light curves and spectra near maximum light to examine the behaviour of high-velocity…
HATS-3b: An inflated hot Jupiter transiting an F-type star
D. Bayliss, G. Zhou, K. Penev +26
We report the discovery by the HATSouth survey of HATS-3b, a transiting extrasolar planet orbiting a V=12.4 F-dwarf star. HATS-3b has a period of P = 3.5479d, mass of Mp = 1.07MJ,…
Locations of Peculiar Supernovae as a Diagnostic of Their Origins
Fang Yuan, Chiaki Kobayashi, Brian P. Schmidt +3
We put constraints on the properties of the progenitors of peculiar calcium-rich transients using the distribution of locations within their host galaxies. We confirm that this cla…
Supernova 2012ec: Identification of the progenitor and early monitoring with PESSTO
J. R. Maund, M. Fraser, S. J. Smartt +13
We present the identification of the progenitor of the Type IIP SN 2012ec in archival pre-explosion HST WFPC2 and ACS/WFC F814W images. The properties of the progenitor are further…