The nuclear diversity of Type Ia supernova explosions

被引：62

作者：

Podsiadlowski, Philipp ^{[1
]}

Mazzali, Paolo ^{[2
,3
]}

Lesaffre, Pierre ^{[1
,4
,5
,6
]}

Han, Zhanwen ^{[7
]}

Foerster, Francisco ^{[1
]}

机构：

[1] Univ Oxford, Dept Astrophys, Oxford OX1 3RH, England

[2] Max Planck Inst Astrophys, D-85748 Garching, Germany

[3] Ist Naz Astrofis Oss Astron, I-34131 Trieste, Italy

[4] Observ Paris, CNRS, LERMA, UMR8112, F-75231 Paris 05, France

[5] ENS LRA, F-75231 Paris 05, France

[6] Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England

[7] Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China

来源：

NEW ASTRONOMY REVIEWS | 2008年 / 52卷 / 7-10期

关键词：

Binaries: close; Cosmological parameters; Nuclear reactions; Nucleosynthesis; Abundances; Supernovae: Type Ia; White dwarfs;

D O I：

10.1016/j.newar.2008.06.020

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

While Type Ia supernovae (SNe Ia) have been successfully used as cosmological distance candles, there is a large diversity of explosion properties that is presently not understood, nor how this diversity is linked to the properties of their progenitors. Here we review the present status of our understanding of SN Ia progenitors, the main classes of progenitor models and recent observational constraints, the origin of the lightcurve peak - lightcurve width relation (the 'Phillips relation') and its metallicity dependence, and illustrate how different evolutionary histories produce a diversity of pre-supernova properties. We particularly emphasize the importance of the final carbon simmering phase preceding the final runaway and the role of the convective Urca process which will alter the immediate pre-supernova conditions in the exploding white dwarf. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：381 / 385

页数：5

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