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The Rising Light Curves of Type Ia Supernovae
R. E. Firth, M. Sullivan, A. Gal-Yam +11
We present an analysis of the early, rising light curves of 18 Type Ia supernovae (SNe Ia) discovered by the Palomar Transient Factory (PTF) and the La Silla-QUEST variability surv…
Transparent Helium in Stripped Envelope Supernovae
Anthony L. Piro, Viktoriya S. Morozova
Using simple arguments based on photometric light curves and velocity evolution, we propose that some stripped envelope supernovae (SNe) show signs that a significant fraction of t…
The Black Hole Formation Probability
Drew Clausen, Anthony L. Piro, Christian D. Ott
A longstanding question in stellar evolution is which massive stars produce black holes (BHs) rather than neutron stars (NSs) upon death. It has been common practice to assume that…
The Signature of Single-Degenerate Accretion Induced Collapse
Anthony L. Piro, Todd A. Thompson
The accretion induced collapse (AIC) of a white dwarf to a neutron star has long been suggested as a natural theoretical outcome in stellar evolution, but there has never been a di…
Slow-Speed Supernovae from the Palomar Transient Factory: Two Channels
Christopher J. White, Mansi M. Kasliwal, Peter E. Nugent +20
Since the discovery of the unusual prototype SN 2002cx, the eponymous class of low-velocity, hydrogen-poor supernovae has grown to include at most another two dozen members identif…
Magnetorotational Core-Collapse Supernovae in Three Dimensions
P. Mösta, S. Richers, C. D. Ott +6
We present results of new three-dimensional (3D) general-relativistic magnetohydrodynamic simulations of rapidly rotating strongly magnetized core collapse. These simulations are t…
Supernovae with Two Peaks in the Optical Light Curve and the Signature of Progenitors with Low-mass Extended Envelopes
Ehud Nakar, Anthony L. Piro
Early observations of supernova light curves are powerful tools for shedding light on the pre-explosion structures of their progenitors and their mass-loss histories just prior to…