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SN 2017gci: a nearby Type I Superluminous Supernova with a bumpy tail
Achille Fiore, Ting-Wan Chen, Anders Jerkstrand +26
We present and discuss the optical spectro-photometric observations of the nearby (z=0.087) Type I superluminous supernova (SLSN I) SN 2017gci, whose peak K-corrected absolute magn…
The electron-capture origin of supernova 2018zd
Daichi Hiramatsu, D. Andrew Howell, Schuyler D. Van Dyk +27
In the transitional mass range ( 8-10 solar masses) between white dwarf formation and iron core-collapse supernovae, stars are expected to produce an electron-capture superno…
Supernova 2018cuf: A Type IIP supernova with a slow fall from plateau
Yize Dong, S. Valenti, K. A. Bostroem +34
We present multi-band photometry and spectroscopy of SN 2018cuf, a Type IIP ("P" for plateau) supernova (SN) discovered by the Distance Less Than 40 Mpc survey (DLT40) within 24 ho…
Type Ic supernovae from the (intermediate) Palomar Transient Factory
C. Barbarino, J. Sollerman, F. Taddia +8
Type Ic supernovae represent the explosions of the most stripped massive stars, but their progenitors and explosion mechanisms remain unclear. Larger samples of observed supernovae…
Late-time Observations of Calcium-Rich Transient SN 2019ehk Reveal a Pure Radioactive Decay Power Source
Wynn V. Jacobson-Galán, Raffaella Margutti, Charles D. Kilpatrick +11
We present imaging of the Calcium-rich supernova (SN) 2019ehk at 276 - 389 days after explosion. These observations represent the latest photometr…
Luminous Type II Short-Plateau Supernovae 2006Y, 2006ai, and 2016egz: A Transitional Class from Stripped Massive Red Supergiants
Daichi Hiramatsu, D. Andrew Howell, Takashi J. Moriya +21
The diversity of Type II supernovae (SNe II) is thought to be driven mainly by differences in their progenitor's hydrogen-rich (H-rich) envelope mass, with SNe IIP having long plat…