Astronomy and Astrophysics – Astrophysics
Scientific paper
2006-09-29
Astronomy and Astrophysics
Astrophysics
48 pages, 2 figures, submitted to the Astrophysical Journal
Scientific paper
Howell et al. have reported the discovery of SN Ia SN 2003fg (SNLS-03D3bb) and conclude that SN 2003fg is very likely a super-Chandrasekhar-mass SN Ia perhaps with a mass of order 2 solar masses. Their work is the first strong evidence that has been presented for a super-Chandrasekhar SN Ia. We have performed an analysis of the SN 2003fg data using the Yoon & Langer binding energy formula for a rotating super-Chandrasekhar-mass white dwarf (also used by Howell et al.) included in a simple model of SNe Ia (which we call the SSC model for Simple Super-Chandrasekhar model for SNe Ia) which assumes spherically symmetric ejecta and relies on the approximations of an exponential density profile for SN Ia ejecta and of a sharp boundary of the SN Ia iron-peak-element core. Our results support the conclusion of Howell et al.: SN 2003fg is very probably super-Chandrasekhar and probably has mass of order 2 solar masses.
Baron Eddie
Branch David
Jeffery David J.
No associations
LandOfFree
On SN 2003fg: The Probable Super-Chandrasekhar-Mass SN Ia does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with On SN 2003fg: The Probable Super-Chandrasekhar-Mass SN Ia, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On SN 2003fg: The Probable Super-Chandrasekhar-Mass SN Ia will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-183763