Abstract
We present an extensive set of photometric and spectroscopic data for SN 2009jf, a nearby Type Ib supernova (SN), spanning from ∼20d 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 (25-30M⊙). 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 He-rich Ib SNe have a rise time longer than other stripped-envelope SNe, however confirmation of this result and further observations are needed.
Original language | English |
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Pages (from-to) | 3138-3159 |
Number of pages | 22 |
Journal | Monthly Notices of the Royal Astronomical Society |
Volume | 416 |
Issue number | 4 |
DOIs | |
Publication status | Published - Oct 2011 |
Keywords
- Galaxies: individual: NGC 7479
- Supernovae: general
- Supernovae: individual: SN 2009jf
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science