The r-Process and Chronometers

نویسندگان

  • John J. Cowan
  • Christopher Sneden
  • James W. Truran
چکیده

We have been examining the abundance distributions in metal-poor Galactic halo stars trying to identify, and understand, the signatures of the slowand rapid-neutron capture processes (i.e., the sand the r-process). Detailed studies have been made of the stars CS 22892–052 [1, 2] and HD 115444 [3]. In our latest work we have added to this list the metal-poor ([Fe/H] = –2.0) halo star BD +17◦3248 [4].

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تاریخ انتشار 2002