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Observations of SN 2017ein Reveal Shock Breakout Emission and A Massive Progenitor Star for a Type Ic Supernova
Danfeng Xiang, Xiaofeng Wang, Jun Mo +23
We present optical and ultraviolet observations of nearby type Ic supernova SN 2017ein as well as detailed analysis of its progenitor properties from both the early-time observatio…
Photometric and Spectroscopic Properties of Type Ia Supernova 2018oh with Early Excess Emission from the 2 Observations
W. Li, X. Wang, J. Vinkó +160
Supernova (SN) 2018oh (ASASSN-18bt) is the first spectroscopically-confirmed type Ia supernova (SN Ia) observed in the field. The data revealed an excess emission…
RINGO3 polarimetry of the Type I superluminous SN 2017egm
J. R. Maund, I. Steele, H. Jermak +2
The origin of the luminosity of superluminous supernovae (SLSNe) is an unresolved mystery, and a number of very different physical scenarios (including energy injection from magnet…
SN 2014J in M82: New Insights On the Spectral Diversity of Type Ia Supernovae
Kaicheng Zhang, Xiaofeng Wang, JuJia Zhang +25
We present extensive spectroscopic observations for one of the closest type Ia supernovae (SNe Ia), SN 2014J discovered in M82, ranging from 10.4 days before to 473.2 days after B-…
X-ray Swift observations of SN 2018cow
L. E. Rivera Sandoval, T. J. Maccarone, A. Corsi +3
Supernova (SN) 2018cow (or AT2018cow) is an optical transient detected in the galaxy CGCG 137-068. It has been classified as a SN due to various characteristics in its optical spec…
The Betelgeuse Project II: Asteroseismology
S. Nance, J. M. Sullivan, M. Diaz +1
We explore the question of whether the interior state of massive red supergiant supernova progenitors can be effectively probed with asteroseismology. We have computed a suite of t…