The beta-decay rates of Fe-59 isotopes in shell burning environments and their influences on the production of Fe-60 in massive star

doi:10.1051/epjconf/201610904006

	The beta-decay rates of Fe-59 isotopes in shell burning environments and their influences on the production of Fe-60 in massive star
	Li, K.1; Lam, Y. H.1; Qi, C.2; Tang, X.1; Zhang, N.1; Liu, WP ; Li, ZH ; Wang, YB ; Guo, B ; Shen, YP
	2016
卷号	109
DOI	10.1051/epjconf/201610904006
英文摘要	The experimental B(GT) strengths of the Fe-59 excited states were employed to determine the transition strengths which greatly contribute Fe-59 stellar beta-decay at typical carbon shell burning temperature. The result has been compared with the theoretical rates FFN (Fuller-Fowler-Newman) and LMP (Langanke&Martinez-Pinedo). Impact of the newly determined rate on the synthesis of cosmic gamma-emitter 60Fe has also been studied using one-zone model calculation. Our results show Fe-59 stellar beta-decay rate plays an important role in the Fe-60 nucleosynthesis. However the uncertainty of the decay rate is rather large due to the error of B(GT) strength that requires further studies.
会议录	13TH INTERNATIONAL SYMPOSIUM ON ORIGIN OF MATTER AND EVOLUTION OF GALAXIES (OMEG2015)
会议录出版者	E D P SCIENCES
会议录出版地	17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A, FRANCE
语种	英语
WOS研究方向	Astronomy & Astrophysics
WOS记录号	WOS:000372789800010
内容类型	会议论文
源URL	[http://119.78.100.186/handle/113462/57748]
专题	中国科学院近代物理研究所
通讯作者	Li, K.
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Royal Inst Technol, Dept Phys, S-10044 Stockholm, Sweden
推荐引用方式 GB/T 7714	Li, K.,Lam, Y. H.,Qi, C.,et al. The beta-decay rates of Fe-59 isotopes in shell burning environments and their influences on the production of Fe-60 in massive star[C]. 见:.