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SN 2009jf: a slow-evolving stripped-envelope core-collapse supernova
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2011 (English)In: Monthly notices of the Royal Astronomical Society, ISSN 0035-8711, E-ISSN 1365-2966, Vol. 416, no 4, 3138-3159 p.Article in journal (Refereed) Published
Abstract [en]

We present an extensive set of photometric and spectroscopic data for SN 2009jf, a nearby Type Ib supernova (SN), spanning from similar to 20 d before B-band maximum to 1 yr after maximum. We show that SN 2009jf is a slowly evolving and energetic stripped-envelope SN and is likely from a massive progenitor (25-30 M(circle dot)). The large progenitor's mass allows us to explain the complete hydrogen plus helium stripping without invoking the presence of a binary companion. The SN occurred close to a young cluster, in a crowded environment with ongoing star formation. The spectroscopic similarity with the He-poor Type Ic SN 2007gr suggests a common progenitor for some SNe Ib and Ic. The nebular spectra of SN 2009jf are consistent with an asymmetric explosion, with an off-centre dense core. We also find evidence that Herich Ib SNe have a rise time longer than other stripped-envelope SNe, however confirmation of this result and further observations are needed.

Place, publisher, year, edition, pages
2011. Vol. 416, no 4, 3138-3159 p.
Keyword [en]
supernovae: general, supernovae: individual: SN 2009jf, galaxies: individual: NGC 7479
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:su:diva-69921DOI: 10.1111/j.1365-2966.2011.19262.xISI: 000295592600058OAI: oai:DiVA.org:su-69921DiVA: diva2:479094
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authorCount :31Available from: 2012-01-17 Created: 2012-01-15 Last updated: 2017-12-08Bibliographically approved

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Sollerman, JesperErgon, Mattias
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Department of AstronomyThe Oskar Klein Centre for Cosmo Particle Physics (OKC)
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