Optical studies of Type IIb SN 2011dh

Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/6562

Title:	Optical studies of Type IIb SN 2011dh
Authors:	Sahu, D. K Anupama, G. C Chakradhari, N. K
Keywords:	Supernovae: individual: SN 2011dh
Issue Date:	Jan-2014
Publisher:	Cambridge University Press
Citation:	Proceedings of the International Astronomical Union, Vol. 296, pp. 338-339
Series/Report no.:	International Astronomical Union Symposium;296
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⊙.
Description:	Restricted Access
URI:	http://hdl.handle.net/2248/6562
ISBN:	978-1-107-04477-7
ISSN:	1743-9213
Appears in Collections:	IIAP Publications

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