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SN 2009ip after a decade: The luminous blue variable progenitor is now gone
Nathan Smith, Jennifer E. Andrews, Alexei V. Filippenko +3
We present new HST imaging photometry for the site of the Type IIn supernova (SN) 2009ip taken almost a decade after explosion. The optical source has continued to fade steadily si…
Spitzer's Last Look at Extragalactic Explosions: Long-Term Evolution of Interacting Supernovae
Tamás Szalai, Ori D. Fox, Richard G. Arendt +10
Here we present new - and, nevertheless, last - mid-infrared (mid-IR) data for supernovae (SNe) based on measurements with the Spitzer Space Telescope. Comparing our recent 3.6 and…
The Slow Demise of the Long-Lived SN 2005ip
Ori D. Fox, Claes Fransson, Nathan Smith +16
The Type IIn supernova (SN) 2005ip is one of the most well-studied and long-lasting examples of a SN interacting with its circumstellar environment. The optical light curve plateau…
The Berkeley sample of Type II supernovae: BVRI light curves and spectroscopy of 55 SNe II
T. de Jaeger, W. Zheng, B. E. Stahl +58
In this work, BV RI light curves of 55 Type II supernovae (SNe II) from the Lick Observatory Supernova Search program obtained with the Katzman Automatic Imaging Telescope and the…
Achieving Transformative Understanding of Extreme Stellar Explosions with ELT-enabled Late-time Spectroscopy
D. Milisavljevic, R. Margutti, R. Chornock +35
Supernovae are among the most powerful and influential explosions in the universe. They are also ideal multi-messenger laboratories to study extreme astrophysics. However, many fun…
SN2013fs and SN2013fr: Exploring the circumstellar-material diversity in Type II supernovae
Christopher Bullivant, Nathan Smith, G. Grant Williams +12
We present photometry and spectroscopy of SN2013fs and SN2013fr in the first 100 days post-explosion. Both objects showed transient, relatively narrow H emission lines character…