Implementing the r-process in metal-poor stars via black hole collapse and relevance to the light element enhancement

International Symposium on Exotic Nuclear Structure From Nucleons 2012

Famiano, Michael^1 ; Boyd, Richard N^2 ; Kajino, Toshitaka^3 ; Meyer, Bradley^4 ; Motizuki, Yuko^5 ; Roederer, Ian^6

Western Michigan University, Kalamazoo, MI, United States^1

Sonoma County Center for Astrophysics, Windsor, CA, United States^2

National Astronomical Observatory of Japan, Mitaka, Tokyo, Japan^3

Clemson University, Clemson, SC, United States^4

Institute of Physical and Chemical Research, Wako, Saitama, Japan^5

Carnegie Observatories, Pasadena, CA, United States^6

关键词: Black holes;    Data compilation;    Light elements;    Metal-poor star;    Metallicities;    R-process;    Single sites;    Upper limits;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/445/1/012025/pdf
DOI  :  10.1088/1742-6596/445/1/012025

来源: IOP

【 摘 要 】

Recent data compilations of abundances of Strontium and Barium in Extremely Metal Poor Stars show that large fluctuations exist in the ratio of the abundances of those elements. Two models exist for explaining those fluctuations, as well as the apparent truncation of data for those elements for stars having metallicity of [Fe/H]