Elias-Rosa, N. and Pastorello, A. and Zampieri, L. and Mazzali, P. and Benetti, S. (2009) Explosion of a massive, He-rich star at z = 0.16. In: Probing Stellar Populations Out to the Distant Universe. AIP Conference Proceedings. No.1111. American Institute of Physics , Melville, NY, pp. 448-451. ISBN 978-0-7354-0648-3. https://resolver.caltech.edu/CaltechAUTHORS:20100511-130150529
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Abstract
We present spectroscopic and photometric data of the peculiar type Ib supernova 2001 gh, discovered by the Southern inTermediate Redshift ESO Supernova Search at a redshift z = 0.16. SN 2001 gh has high luminosity at maximum, while the light curve shows a broad, delayed peak. An early-time spectrum shows an almost featureless blue continuum with a few weak P-Cygni lines that we attribute to He I. He I lines remain the only spectral features visible in another spectrum obtained one month later. Three possible scenarios are considered: a massive and energetic progenitor with M_(ejecta)~30M_⊙, E~6x10^(52) erg and earlier explosion date; a moderate-mass progenitor with M_(ejecta)~15M_⊙, M_(Ni) = 0.65M_⊙ and E~18x10^(51) erg; or a more canonical SN Ib with a dense, circumstellar shell
| Item Type: | Book Section | |||||||||
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| Additional Information: | © 2009 American Institute of Physics. | |||||||||
| Subject Keywords: | supernovae: general; supernovae: individual:SN 2001gh | |||||||||
| Series Name: | AIP Conference Proceedings | |||||||||
| Issue or Number: | 1111 | |||||||||
| Classification Code: | PACS: 98.58.Mj, 82.80.Ej, 98.80.-k | |||||||||
| Record Number: | CaltechAUTHORS:20100511-130150529 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20100511-130150529 | |||||||||
| Official Citation: | Explosion of a massive, He-rich star at z = 0.16 N. Elias-Rosa, A. Pastorello, L. Zampieri, P. Mazzali, and S. Benetti, AIP Conf. Proc. 1111, 448 (2009), DOI:10.1063/1.3141590 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 18240 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Tony Diaz | |||||||||
| Deposited On: | 16 May 2010 02:46 | |||||||||
| Last Modified: | 14 Dec 2019 00:08 |
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