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Confronting Models of Massive Star Evolution and Explosions with Remnant Mass Measurements
Carolyn A. Raithel, Tuguldur Sukhbold, Feryal Özel
The mass distribution of compact objects provides a fossil record that can be studied to uncover information on the late stages of massive star evolution, the supernova explosion m…
The Highly Luminous Type Ibn Supernova ASASSN-14ms
P. J. Vallely, J. L. Prieto, K. Z. Stanek +16
We present photometric and spectroscopic follow-up observations of the highly luminous Type Ibn supernova ASASSN-14ms, which was discovered on UT 2014-12-26.61 at .…
Emission line models for the lowest-mass core collapse supernovae. I: Case study of a 9 one-dimensional neutrino-driven explosion
A. Jerkstrand, T. Ertl, H. -T. Janka +3
A large fraction of core-collapse supernovae (CCSNe), 30-50%, are expected to originate from the low-mass end of progenitors with . However, degeneracy…
High Resolution Study of Presupernova Compactness
Tuguldur Sukhbold, Stan Woosley, Alexander Heger
The density structure surrounding the iron core of a massive star when it dies is known to have a major effect on whether or not the star explodes. Here we repeat previous surveys…
Magnetar-Powered Supernovae in Two Dimensions. II. Broad-Line Supernovae Ic
Ke-Jung Chen, Takashi J. Moriya, Stan Woosley +4
Nascent neutron stars with millisecond periods and magnetic fields in excess of Gauss can drive highly energetic and asymmetric explosions known as magnetar-powered super…
MUSE Integral Field Observations of the Oxygen-rich SNR 1E 0102.2-7219
Ivo R. Seitenzahl, Frédéric P. A. Vogt, Jason P. Terry +4
We have observed the oxygen-rich SNR 1E 0102.2-7219 with the integral field spectrograph WiFeS at Siding Spring Observatory and discovered sulfur-rich ejecta for the first time. Fo…
The GRB-SLSN Connection: mis-aligned magnetars, weak jet emergence, and observational signatures
Ben Margalit, Brian D. Metzger, Todd A. Thompson +2
Multiple observational lines of evidence support a connection between hydrogen-poor superluminous supernovae (SLSNe) and long duration gamma-ray bursts (GRBs). Both events require…
Magnetar Powered Ordinary Type IIP Supernovae
Tuguldur Sukhbold, Todd A. Thompson
We investigate the properties of Type IIP supernovae that are dominantly powered by the rotational kinetic energy of the newly born neutron star. While the spin-down of a magnetar…