Optical studies of Type IIb SN 2011dh

Sahu, D. K; Anupama, G. C; Chakradhari, N. K

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dc.contributor.author	Sahu, D. K
dc.contributor.author	Anupama, G. C
dc.contributor.author	Chakradhari, N. K
dc.date.accessioned	2014-03-12T10:01:04Z
dc.date.available	2014-03-12T10:01:04Z
dc.date.issued	2014-01
dc.identifier.citation	Proceedings of the International Astronomical Union, Vol. 296, pp. 338-339	en
dc.identifier.isbn	978-1-107-04477-7
dc.identifier.issn	1743-9213
dc.identifier.uri	http://hdl.handle.net/2248/6562
dc.description	Restricted Access	en
dc.description.abstract	UBVRI photometry and low resolution optical spectroscopy of the type IIb SN 2011dh in M51 are presented, covering the first year after the explosion. The peak absolute magnitude in V-band of −17.12±0.18 mag indicates SN 2011dh to be a normal bright type IIb event. The peak quasi-bolometric luminosity indicates that ~ 0.06 M⊙ of 56Ni was synthesized in the explosion. The He I lines were detected in the spectra much before the maximum light in B-band. The nebular spectra of SN 2011dh show a box shaped emission in the red wing of [OI] 6300, 6363 line due to Hα emission excited because of shock-wave interaction. The analysis of the nebular spectra indicates a progenitor with a main sequence mass of 10-15 M⊙.	en
dc.language.iso	en	en
dc.publisher	Cambridge University Press	en
dc.relation.ispartofseries	International Astronomical Union Symposium;296
dc.relation.uri	http://dx.doi.org/10.1017/S174392131300971X	en
dc.rights	© International Astronomical Union	en
dc.subject	Supernovae: individual: SN 2011dh	en
dc.title	Optical studies of Type IIb SN 2011dh	en
dc.type	Article	en