A spectroscopically normal type Ic supernova from a very massive progenitor

Stefano Valenti; Stefan Taubenberger; Andrea Pastorello; Levon Aramyan; Maria Teresa Botticella; Morgan Fraser; Stefano Benetti; Stephen J. Smartt; Enrico Cappellaro; Nancy Elias-Rosa; Mattias Ergon; Lindsay Magill; Eugene Magnier; Rubina Kotak; Paul A. Price; Jesper Sollerman; Lina Tomasella; Massimo Turatto; Darryl E. Wright

doi:10.1088/2041-8205/749/2/L28

A spectroscopically normal type Ic supernova from a very massive progenitor

Stefano Valenti, Stefan Taubenberger, Andrea Pastorello, Levon Aramyan, Maria Teresa Botticella, Morgan Fraser, Stefano Benetti, Stephen J. Smartt, Enrico Cappellaro, Nancy Elias-Rosa, Mattias Ergon, Lindsay Magill, Eugene Magnier, Rubina Kotak, Paul A. Price, Jesper Sollerman, Lina Tomasella, Massimo Turatto, Darryl E. Wright

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-review

66 Scopus citations

Abstract

We present observations of the Type Ic supernova (SN Ic) 2011bm spanning a period of about one year. The data establish that SN 2011bm is a spectroscopically normal SN Ic with moderately low ejecta velocities and with a very slow spectroscopic and photometric evolution (more than twice as slow as SN 1998bw). The Pan-STARRS1 retrospective detection shows that the rise time from explosion to peak was 40days in the R band. Through an analysis of the light curve and the spectral sequence, we estimate a kinetic energy of 7-17 foe and a total ejected mass of 7-17 M _⊙, 5-10 M _⊙ of which is oxygen and 0.6-0.7 M _⊙ is ⁵⁶Ni. The physical parameters obtained for SN 2011bm suggest that its progenitor was a massive star of initial mass 30-50 M _⊙. The profile of the forbidden oxygen lines in the nebular spectra shows no evidence of a bi-polar geometry in the ejected material.

Original language	English (US)
Article number	L28
Journal	Astrophysical Journal Letters
Volume	749
Issue number	2
DOIs	https://doi.org/10.1088/2041-8205/749/2/L28
State	Published - Apr 20 2012

Keywords

supernovae: general
supernovae: individual (SN 2011bm)

Publisher link

10.1088/2041-8205/749/2/L28

Find It

Find It at U of M Libraries

Cite this

Valenti, S., Taubenberger, S., Pastorello, A., Aramyan, L., Botticella, M. T., Fraser, M., Benetti, S., Smartt, S. J., Cappellaro, E., Elias-Rosa, N., Ergon, M., Magill, L., Magnier, E., Kotak, R., Price, P. A., Sollerman, J., Tomasella, L., Turatto, M., & Wright, D. E. (2012). A spectroscopically normal type Ic supernova from a very massive progenitor. Astrophysical Journal Letters, 749(2), Article L28. https://doi.org/10.1088/2041-8205/749/2/L28

Valenti, S, Taubenberger, S, Pastorello, A, Aramyan, L, Botticella, MT, Fraser, M, Benetti, S, Smartt, SJ, Cappellaro, E, Elias-Rosa, N, Ergon, M, Magill, L, Magnier, E, Kotak, R, Price, PA, Sollerman, J, Tomasella, L, Turatto, M & Wright, DE 2012, 'A spectroscopically normal type Ic supernova from a very massive progenitor', Astrophysical Journal Letters, vol. 749, no. 2, L28. https://doi.org/10.1088/2041-8205/749/2/L28

@article{80ee292053144f358a80e788ad3652b1,

title = "A spectroscopically normal type Ic supernova from a very massive progenitor",

abstract = "We present observations of the Type Ic supernova (SN Ic) 2011bm spanning a period of about one year. The data establish that SN 2011bm is a spectroscopically normal SN Ic with moderately low ejecta velocities and with a very slow spectroscopic and photometric evolution (more than twice as slow as SN 1998bw). The Pan-STARRS1 retrospective detection shows that the rise time from explosion to peak was 40days in the R band. Through an analysis of the light curve and the spectral sequence, we estimate a kinetic energy of 7-17 foe and a total ejected mass of 7-17 M ⊙, 5-10 M ⊙ of which is oxygen and 0.6-0.7 M ⊙ is 56Ni. The physical parameters obtained for SN 2011bm suggest that its progenitor was a massive star of initial mass 30-50 M ⊙. The profile of the forbidden oxygen lines in the nebular spectra shows no evidence of a bi-polar geometry in the ejected material.",

keywords = "supernovae: general, supernovae: individual (SN 2011bm)",

author = "Stefano Valenti and Stefan Taubenberger and Andrea Pastorello and Levon Aramyan and Botticella, {Maria Teresa} and Morgan Fraser and Stefano Benetti and Smartt, {Stephen J.} and Enrico Cappellaro and Nancy Elias-Rosa and Mattias Ergon and Lindsay Magill and Eugene Magnier and Rubina Kotak and Price, {Paul A.} and Jesper Sollerman and Lina Tomasella and Massimo Turatto and Wright, {Darryl E.}",

year = "2012",

month = apr,

day = "20",

doi = "10.1088/2041-8205/749/2/L28",

language = "English (US)",

volume = "749",

journal = "Astrophysical Journal Letters",

issn = "2041-8205",

publisher = "American Astronomical Society",

number = "2",

}

TY - JOUR

T1 - A spectroscopically normal type Ic supernova from a very massive progenitor

AU - Valenti, Stefano

AU - Taubenberger, Stefan

AU - Pastorello, Andrea

AU - Aramyan, Levon

AU - Botticella, Maria Teresa

AU - Fraser, Morgan

AU - Benetti, Stefano

AU - Smartt, Stephen J.

AU - Cappellaro, Enrico

AU - Elias-Rosa, Nancy

AU - Ergon, Mattias

AU - Magill, Lindsay

AU - Magnier, Eugene

AU - Kotak, Rubina

AU - Price, Paul A.

AU - Sollerman, Jesper

AU - Tomasella, Lina

AU - Turatto, Massimo

AU - Wright, Darryl E.

PY - 2012/4/20

Y1 - 2012/4/20

N2 - We present observations of the Type Ic supernova (SN Ic) 2011bm spanning a period of about one year. The data establish that SN 2011bm is a spectroscopically normal SN Ic with moderately low ejecta velocities and with a very slow spectroscopic and photometric evolution (more than twice as slow as SN 1998bw). The Pan-STARRS1 retrospective detection shows that the rise time from explosion to peak was 40days in the R band. Through an analysis of the light curve and the spectral sequence, we estimate a kinetic energy of 7-17 foe and a total ejected mass of 7-17 M ⊙, 5-10 M ⊙ of which is oxygen and 0.6-0.7 M ⊙ is 56Ni. The physical parameters obtained for SN 2011bm suggest that its progenitor was a massive star of initial mass 30-50 M ⊙. The profile of the forbidden oxygen lines in the nebular spectra shows no evidence of a bi-polar geometry in the ejected material.

AB - We present observations of the Type Ic supernova (SN Ic) 2011bm spanning a period of about one year. The data establish that SN 2011bm is a spectroscopically normal SN Ic with moderately low ejecta velocities and with a very slow spectroscopic and photometric evolution (more than twice as slow as SN 1998bw). The Pan-STARRS1 retrospective detection shows that the rise time from explosion to peak was 40days in the R band. Through an analysis of the light curve and the spectral sequence, we estimate a kinetic energy of 7-17 foe and a total ejected mass of 7-17 M ⊙, 5-10 M ⊙ of which is oxygen and 0.6-0.7 M ⊙ is 56Ni. The physical parameters obtained for SN 2011bm suggest that its progenitor was a massive star of initial mass 30-50 M ⊙. The profile of the forbidden oxygen lines in the nebular spectra shows no evidence of a bi-polar geometry in the ejected material.

KW - supernovae: general

KW - supernovae: individual (SN 2011bm)

UR - http://www.scopus.com/inward/record.url?scp=84859341990&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84859341990&partnerID=8YFLogxK

U2 - 10.1088/2041-8205/749/2/L28

DO - 10.1088/2041-8205/749/2/L28

M3 - Article

AN - SCOPUS:84859341990

SN - 2041-8205

VL - 749

JO - Astrophysical Journal Letters

JF - Astrophysical Journal Letters

IS - 2

M1 - L28

ER -

A spectroscopically normal type Ic supernova from a very massive progenitor

Abstract

Keywords

Publisher link

Find It

Other files and links

Fingerprint

Cite this