Explosive hydrogen burning during type I X-ray bursts

被引:128
作者
Fisker, Jacob Lund [1 ,2 ]
Schatz, Hendrik [3 ,4 ,5 ]
Thielemann, Friedrich-Karl [6 ]
机构
[1] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA
[2] Univ Notre Dame, Joint Inst Nucl Astrophys, Notre Dame, IN 46556 USA
[3] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA
[4] Michigan State Univ, Natl Supercond Cyclotron Lab, E Lansing, MI 48824 USA
[5] Michigan State Univ, Joint Inst Nucl Astrophys, E Lansing, MI 48824 USA
[6] Univ Basel, Dept Phys & Astron, CH-4056 Basel, Switzerland
基金
美国国家科学基金会;
关键词
nuclear reactions; nucleosynthesis; abundances; stars : neutron; X-rays : bursts;
D O I
10.1086/521104
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Explosive hydrogen burning in type I X-ray bursts (XRBs) is driven by charged particle reactions creating isotopes with masses up to A similar to 100. Since charged particle reactions in a stellar environment are very temperature sensitive, we use a realistic time-dependent general relativistic and self-consistent model of type I X-ray bursts to provide accurate values of the burst temperatures and densities. This allows a detailed and accurate time-dependent identification of the reaction flow from the surface layers through the convective region and the ignition region to the neutron star ocean. Using this, we determine the relative importance of specific nuclear reactions in the X-ray burst.
引用
收藏
页码:261 / 276
页数:16
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