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Title: Optical observations of supernova 2012aw
Authors: Bose, Subhash
Kumar, B
Sutaria, F. K
Roy, Rupak
Kumar, B
Bhatt, V. K
Chakraborti, S
Keywords: (stars:) supernovae: individual (SN 2012aw);Techniques: photometric;Spectroscopic
Issue Date: Jan-2014
Publisher: Cambridge University Press
Citation: Proceedings of the International Astronomical Union, Vol. 296, pp. 334-335
Series/Report no.: International Astronomical Union Symposium;296
Abstract: We present optical UBVRI photometric and low-resolution spectroscopic follow-up observations of a type II SN 2012aw in a nearby (~10 Mpc) galaxy M95 during 4 to 270 days post-explosion. The evolution characteristics of optical brightness and color are found to have striking similarity with the archetypal type IIP SN 1999em. The mid-plateau M V is −16.7 mag and the ejected nickel mass is ~0.06 M⊙. The presence and evolution of optical spectral features during 7d to 104d are also similar to SN 1999em as well as other normal type IIP events. The mid-plateau photospheric velocity is around 4200 km s−1 which is same as that of SN 2004et at similar phases, indicating similar energy of explosion i.e. 2 × 1051 erg s−1.
Description: Restricted Access
ISBN: 978-1-107-04477-7
ISSN: 1743-9213
???metadata.dc.rights???: © International Astronomical Union
Appears in Collections:IIAP Publications

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