Nomoto 2007 伽玛暴－超新星成协的分类

主要内容:
分为四类：GRB-SN,XRF-SN,noGRB-SN,GRB-nonSN。准备用统一的jet模型解释。

精彩摘抄:


文章信息:

astro-ph/0702472 [abs, ps, pdf, other] :

Title: Diversity of the Supernova - Gamma-Ray Burst Connection
Authors: K. Nomoto, N. Tominaga, M. Tanaka, K. Maeda, T. Suzuki, J.S. Deng, P.A. Mazzali
Comments: 16 pages, 12 figures. To be published in the proceedings of the conference "SWIFT and GRBs: Unveiling the Relativistic Universe", Venice, June 5-9, 2006. To appear in "Il Nuovo Cimento"

The connection between the long Gamma Ray Bursts (GRBs) and Type Ic Supernovae (SNe) has revealed interesting diversity. We review the following types of the GRB-SN connection. (1) GRB-SNe: The three SNe all explode with energies much larger than those of typical SNe, thus being called Hypernovae (HNe). They are massive enough for forming black holes. (2) Non-GRB HNe/SNe: Some HNe are not associated with GRBs. (3) XRF-SN: SN 2006aj associated with X-Ray Flash 060218 is dimmer than GRB-SNe and has very weak oxygen lines. Its progenitor mass is estimated to be small enough to form a neutron star rather than a black hole. (4) Non-SN GRB: Two nearby long GRBs were not associated SNe. Such ``dark HNe'' have been predicted in this talk (i.e., just before the discoveries) in order to explain the origin of C-rich (hyper) metal-poor stars. This would be an important confirmation of the Hypernova-First Star connection. We will show our attempt to explain the diversity in a unified manner with the jet-induced explosion model.