dc.contributor.author |
Kumar, Brajesh |
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dc.contributor.author |
Pandey, S. B |
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dc.contributor.author |
Sahu, D. K |
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dc.contributor.author |
Vinko, J |
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dc.contributor.author |
Moskvitin, A. S |
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dc.contributor.author |
Anupama, G. C |
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dc.contributor.author |
Bhatt, V. K |
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dc.contributor.author |
Ordasi, A |
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dc.contributor.author |
Nagy, A |
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dc.contributor.author |
Sokolov, V. V |
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dc.contributor.author |
Sokolova, T. N |
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dc.contributor.author |
Komarova, V. N |
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dc.contributor.author |
Kumar, Brijesh |
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dc.contributor.author |
Bose, S |
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dc.contributor.author |
Roy, R |
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dc.contributor.author |
Sagar, R |
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dc.date.accessioned |
2013-03-19T11:14:21Z |
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dc.date.available |
2013-03-19T11:14:21Z |
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dc.date.issued |
2013-05-01 |
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dc.identifier.citation |
Monthly Notices of the Royal Astronomical Society, Vol. 431, No. 1, pp. 308-321 |
en |
dc.identifier.issn |
1365-2966 |
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dc.identifier.uri |
http://hdl.handle.net/2248/6017 |
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dc.description |
Restricted Access |
en |
dc.description.abstract |
We present the low-resolution spectroscopic and UBVRI broad-band photometric investigations of the Type IIb supernova (SN) 2011fu, discovered in UGC 01626. The photometric follow-up of this event was initiated a few days after the explosion and covers a period of about 175 d. The early-phase light curve shows a rise, followed by steep decay in all bands, and shares properties very similar to that seen for SN 1993J, with a possible detection of the adiabatic cooling phase. Modelling of the quasi-bolometric light curve suggests that the progenitor had an extended (∼1 × 1013 cm), low-mass (∼0.1 M⊙) H-rich envelope on top of a dense, compact (∼2 × 1011 cm), more massive (∼1.1 M⊙) He-rich core. The nickel mass synthesized during the explosion was found to be ∼0.21 M⊙, slightly larger than that seen for other Type IIb SNe. The spectral modelling performed with synow suggests that the early-phase line velocities for H and Fe ii features were ∼16 000 and ∼14 000 km s−1, respectively. Then, the velocities declined up to day +40 and became nearly constant at later epochs. |
en |
dc.language.iso |
en |
en |
dc.publisher |
Oxford University Press on behalf of the Royal Astronomical Society |
en |
dc.relation.uri |
http://dx.doi.org/10.1093/mnras/stt162 |
en |
dc.relation.uri |
http://arxiv.org/abs/1301.6538 |
en |
dc.rights |
© Royal Astronomical Society |
en |
dc.subject |
Supernovae: general |
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dc.subject |
Supernovae: individual: SN 2011fu |
en |
dc.subject |
Supernovae: individual (SN 1993J) |
en |
dc.subject |
Galaxies: individual (UGC 01626) |
en |
dc.title |
Light curve and spectral evolution of the Type IIb supernova 2011fu |
en |
dc.type |
Article |
en |