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Electron Cooling in a Young Radio Supernova: SN 2012aw
Naveen Yadav, Alak Ray, Sayan Chakraborti +8
We present the radio observations and modeling of an optically bright Type II-P supernova (SN), SN 2012aw which exploded in the nearby galaxy Messier 95 (M95) at a distance of $10\…
SN 2007uy - metamorphosis of an aspheric Type Ib explosion
Rupak Roy, Brijesh Kumar, Justyn R. Maund +13
The supernovae of Type Ibc are rare and the detailed characteristics of these explosions have been studied only for a few events. Unlike Type II SNe, the progenitors of Type Ibc ha…
Supernova 2012aw - a high-energy clone of archetypal type IIP SN 1999em
Subhash Bose, Brijesh Kumar, Firoza Sutaria +8
We present densely-sampled UBVRI/griz photometric and low-resolution (6-10A) optical spectroscopic observations from 4 to 270 days after explosion of a newly discovered type II SN…
The optical photometric and spectroscopic investigation of Type IIP supernova 2012A
Rupak Roy, Firoza Sutaria, Subhash Bose +11
Supernova 2012A was discovered on 7.39UT, January, 2012 in the nearby galaxy NGC 3239 at an unfiltered magnitude of 14.6 and classified spectroscopically as a Type IIP event. Here,…
The progenitor of SN 2011ja: Clues from circumstellar interaction
Sayan Chakraborti, Alak Ray, Randall Smith +7
Massive stars, possibly red supergiants, which retain extended hydrogen envelopes until core collapse, produce Type II Plateau (IIP) supernovae. The ejecta from these explosions sh…
Light curve and spectral evolution of the Type IIb SN 2011fu
Brajesh Kumar, S. B. Pandey, D. K. Sahu +13
We present the low-resolution spectroscopic and UBVRI broad-band photometric investigations of the Type IIb supernova 2011fu, discovered in UGC 01626. The photometric follow-up of…