Tanaka 2008 SN2008D的大质量氦星模型

主要内容:


精彩摘抄:


文章信息:

· Find Similar Abstracts (with default settings below)

· arXiv e-print (arXiv:0807.1674)

· References in the Article

· Citations to the Article (1) (Citation History)

· Refereed Citations to the Article

· Also-Read Articles (Reads History)

·

· Translate This Page

Title:		Supernova 2008D associated with the Luminous X-ray Transient 080109: An Energetic Explosion of a Massive Helium Star
Authors:		Tanaka, Masaomi; Tominaga, Nozomu; Nomoto, Ken'ichi; Valenti, S.; Sahu, D. K.; Minezaki, T.; Yoshii, Y.; Yoshida, M.; Anupama, G. C.; Benetti, S.; Chincarini, G.; Della Valle, M.; Mazzali, P. A.; Pian, E.
Publication:		eprint arXiv:0807.1674
Publication Date:		07/2008
Origin:		ARXIV
Keywords:		Astrophysics
Comment:		8 pages, 8 figures, Submitted to the Astrophysical Journal
Bibliographic Code:		2008arXiv0807.1674T

Abstract

We present a theoretical model for supernova (SN) 2008D associated with the luminous X-ray transient 080109. The optical light curve and spectra of the SN are modeled based on realistic progenitor models and the explosion models are obtained from hydrodynamic/nucleosynthetic calculations. We find that SN 2008D is a more energetic explosion than normal core-collapse supernovae, with an ejecta mass of Mej = 5.3 +- 1.0 Msun and a kinetic energy of KE = 6.0 +- 2.5 x 10^{51} erg. The mass of the progenitor is estimated to be Mms = 20-25 Msun. These properties are intermediate between those of normal SNe and hypernovae associated with gamma-ray bursts. The mass of the central remnant is estimated as 1.6 - 1.8 Msun, which is near the boundary between neutron star and black hole formation.

---

Bibtex entry for this abstract Preferred format for this abstract (see Preferences)