SN 2009jf: A slow-evolving stripped-envelope core-collapse supernova

S. Valenti, M. Fraser, S. Benetti, G. Pignata, J. Sollerman, C. Inserra, E. Cappellaro, A. Pastorello, S. J. Smartt, M. Ergon, M. T. Botticella, J. Brimacombe, F. Bufano, M. Crockett, I. Eder, D. Fugazza, J. B. Haislip, M. Hamuy, A. Harutyunyan, K. M. IvarsenE. Kankare, R. Kotak, A. P. Lacluyze, L. Magill, S. Mattila, J. Maza, P. A. Mazzali, D. E. Reichart, S. Taubenberger, M. Turatto, L. Zampieri

Resultado de la investigación: Contribución a una revistaArtículo

81 Citas (Scopus)

Resumen

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.

Idioma originalInglés
Páginas (desde-hasta)3138-3159
Número de páginas22
PublicaciónMonthly Notices of the Royal Astronomical Society
Volumen416
N.º4
DOI
EstadoPublicada - 1 oct 2011

Áreas temáticas de ASJC Scopus

  • Astronomía y astrofísica
  • Ciencias planetarias y espacial

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    Valenti, S., Fraser, M., Benetti, S., Pignata, G., Sollerman, J., Inserra, C., Cappellaro, E., Pastorello, A., Smartt, S. J., Ergon, M., Botticella, M. T., Brimacombe, J., Bufano, F., Crockett, M., Eder, I., Fugazza, D., Haislip, J. B., Hamuy, M., Harutyunyan, A., ... Zampieri, L. (2011). SN 2009jf: A slow-evolving stripped-envelope core-collapse supernova. Monthly Notices of the Royal Astronomical Society, 416(4), 3138-3159. https://doi.org/10.1111/j.1365-2966.2011.19262.x