Dynamics of neutrino-driven winds: inclusion of accurate weak interaction rates in strong magnetic fields

	Dynamics of neutrino-driven winds: inclusion of accurate weak interaction rates in strong magnetic fields
	Liu, Men-Quan 1,2; Wang, Zhong-Xiang 1
刊名	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
	2013-02-01
卷号	13 期号:2 页码:207-214
关键词	nuclear reactions, nucleosynthesis, abundances hydrodynamics stars: neutrons
英文摘要	Solving Newtonian steady-state wind equations while considering the accurate weak interaction rates and magnetic fields (MFs) of young neutron stars, we study the dynamics and nucleosynthesis of neutrino-driven winds (NDWs) from proto neutron stars (PNSs). For a typical 1.4 M-circle dot PNS model, we find that the nucleosynthesis products are closely related to the luminosity of neutrinos and anti-neutrinos. The lower the luminosity is, the larger is the effect on the NDWs caused by weak interactions and MFs. At a high anti-neutrino luminosity of typically 8 x 10(51) erg s(-1), neutrinos and anti-neutrinos dominate the processes in an NDW and the MFs hardly change the wind's properties. But at a low anti-neutrino luminosity of 10(51) erg s(-1) at the late stage of an NDW the mass of the product and process of nucleosynthesis are changed significantly in strong MFs. Therefore, in most of the models considered for the NDWs from PNSs, based on our calculations, the influences of MFs and the net weak interactions on the nucleosynthesis are not significant.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	R-PROCESS NUCLEOSYNTHESIS ; MODIFIED URCA PROCESS ; STAR WINDS ; BETA-DECAY ; BRANCH
收录类别	SCI
语种	英语
WOS记录号	WOS:000314864300007
内容类型	期刊论文
源URL	[http://119.78.226.72/handle/331011/18022]
专题	上海天文台_星系宇宙学重点实验室
作者单位	1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.China W Normal Univ, Inst Theoret Phys, Nanchong 637002, Peoples R China
推荐引用方式 GB/T 7714	Liu, Men-Quan,Wang, Zhong-Xiang. Dynamics of neutrino-driven winds: inclusion of accurate weak interaction rates in strong magnetic fields[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2013,13(2):207-214.
APA	Liu, Men-Quan,&Wang, Zhong-Xiang.(2013).Dynamics of neutrino-driven winds: inclusion of accurate weak interaction rates in strong magnetic fields.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,13(2),207-214.
MLA	Liu, Men-Quan,et al."Dynamics of neutrino-driven winds: inclusion of accurate weak interaction rates in strong magnetic fields".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 13.2(2013):207-214.