SIMBAD references

1997A&A...322L..29G - Astronomy and Astrophysics, volume 322, L29-32 (1997/6-3)

What can we learn from the r-element distribution of CS 22892-052?

GORIELY S. and ARNOULD M.

Abstract (from CDS):

The striking similarity between the solar distribution of r-element abundances in the 56≤Z≤76 range and the corresponding abundance pattern observed in the ultra-metal-poor star CS 22892-052 is analysed. It is found that such an observation does not necessarily imply that the whole A>70 distribution of r-nuclides, including Th, suspected to have been engulfed in CS 22892-052 at the same time as the detected elements is solar. Such a conclusion derives from the finding that an arbitrary superposition of r-process events that does not fit the whole solar r-process pattern can also account for the CS 22892-052 observations. The interpretation of this result and its implications are discussed.

Abstract Copyright:

Journal keyword(s): nucleosynthesis - nuclear reactions - stars: abundances - solar system: general - stars: CS 22892-052 (BPS CS 22892-0052)

Simbad objects: 4

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