TY - JOUR
T1 - SN 2009jf: a slow-evolving stripped-envelope core-collapse supernova
AU - Valenti, Stefano
AU - Fraser, Morgan
AU - Benetti, S.
AU - Pignata, G.
AU - Sollerman, J.
AU - Inserra, C.
AU - Cappellaro, E.
AU - Pastorello, Andrea
AU - Smartt, Stephen
AU - Ergon, M.
AU - Botticella, Maria
AU - Brimacombe, J.
AU - Bufano, F.
AU - Crockett, M.
AU - Eder, I.
AU - Fugazza, D.
AU - Haislip, J.B.
AU - Hamuy, M.
AU - Harutyunyan, A.
AU - Ivarsen, K.M.
AU - Kankare, E.
AU - Kotak, Rubina
AU - LaCluyze, A.P.
AU - Magill, L.
AU - Mattila, Seppo
AU - Maza, J.
AU - Mazzali, P.A.
AU - Reichart, D.E.
AU - Taubenberger, S.
AU - Turatto, M.
AU - Zampieri, L.
N1 - Unrecognised author: 'et al.'
Unrecognised author: 'et al.'
PY - 2011/10
Y1 - 2011/10
N2 - We present an extensive set of photometric and spectroscopic data for SN 2009jf, a nearby Type Ib supernova (SN), spanning from ˜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 Msun). 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. This paper is based on observations with several telescopes, including NTT(184.D-1151), VLT-UT1(085.D-0750,386.D-0126), NOT, WHT, TNG, PROMPT, Ekar, Calar Alto and Liverpool Telescope.
AB - We present an extensive set of photometric and spectroscopic data for SN 2009jf, a nearby Type Ib supernova (SN), spanning from ˜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 Msun). 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. This paper is based on observations with several telescopes, including NTT(184.D-1151), VLT-UT1(085.D-0750,386.D-0126), NOT, WHT, TNG, PROMPT, Ekar, Calar Alto and Liverpool Telescope.
U2 - 10.1111/j.1365-2966.2011.19262.x
DO - 10.1111/j.1365-2966.2011.19262.x
M3 - Article
VL - 416
SP - 3138
EP - 3159
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
SN - 0035-8711
IS - 4
ER -