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Analysis of the Type Ia Supernova SNF20080514-002

T. Rollin G. Aldering C. Aragon P. Antilogus 1 C. Baltay S. Bongard 1 P. Brown C. Buton A. Canto 1 M. Childress N. Chotard 2 Y. Copin 2 H. Fakhouri E. Gangler 2 M. Kerschhaggl M. Kowalski E. Hsiao S. Loken P. Milne P. Nugent K. Paech R. Pain 1 E. Pecontal 3 R. Pereira 2 S. Perlmutter D. Rabinowitz K. Runge R. Scalzo G. Smadja 2 C. Tao 4 C. Wu 1
1 LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies
2 IPNL - Institut de Physique Nucléaire de Lyon
3 CRAL - Centre de Recherche Astrophysique de Lyon
4 CPPM - Centre de Physique des Particules de Marseille
Abstract : We discuss the comprehensive analysis of spectrophotometric time-series observations of the Type Ia supernova SNF20080514-002. The data consist of 20 SuperNova Integral Field Spectrograph (SNIFS) spectra sampled over 50 days, commencing at 10 days before peak brightness. The analysis is part of a systematic effort to map out the time-dependent manifestation of ion species in Type Ia supernova spectra in detail. In general, the SN is relatively normal, but it possesses some noteworthy characteristics we explore in detail. C II footprints are detected in the spectra leading up to maximum light, suggesting that unburned material may be mixed with intermediate mass burning products. Though the light-curve qualifies as a moderately fast-decliner (s=0.87), its UV-optical colors are unusually blue. We attempt to place these findings into the context of supernova explosion models, and comment on whether the occurrence of carbon in lower-luminosity Type Ia supernovae favors any particular model or not.
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Conference papers
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http://hal.in2p3.fr/in2p3-00611463
Contributor : Sylvie Flores <>
Submitted on : Tuesday, July 26, 2011 - 2:02:22 PM
Last modification on : Saturday, January 9, 2021 - 12:34:02 PM

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IN2P3 | INSU | UPMC | CPPM | LPNHE | CNRS | UNIV-PARIS7 | CRAL | UNIV-AMU | USPC | UNIV-LYON1 | SORBONNE-UNIVERSITE | ENS-LYON | SU-SCIENCES | IP2I | UDL | UNIV-PARIS | UP-SCIENCES

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T. Rollin, G. Aldering, C. Aragon, P. Antilogus, C. Baltay, et al.. Analysis of the Type Ia Supernova SNF20080514-002. 217th Meeting of the American Astronomical Society with the Historical Astronomy, Jan 2011, Seattle, WA, United States. pp.30801. ⟨in2p3-00611463⟩

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