Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: R-process pattern in the Very-Metal-Poor Halo Star CS31082-001   The very-metal-poor halo star CS31082-001 was discovered to be very strongly
r-process-enhanced during the course of a VLT+UVES high-resolution follow-up of
metal-poor stars identified in the HK survey of Beers and colleagues. Both the
strong n-capture element enhancement and the low carbon and nitrogen content of
the star (reducing the CN molecular band contamination) led to the first
$^{238}$U abundance measurement in a stellar spectrum (Cayrel et al. 2001), and
the opportunity to use both radioactive species $^{238}$U and $^{232}$Th for
dating the progenitor to this star. However, age computations all rely on the
hypothesis that the r-process pattern is solar, as this was indeed observed in
the other famous r-process-enhanced very metal poor stars CS22892-052 (Sneden
et al. 1996, 2000) and in HD115444 (Westin et al. 2000). Here, we investigate
whether this hypothesis is verified also for CS31082-001, using a preliminary
analysis of over 20 abundances of n-capture elements in the range Z=38 to Z=92.

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The categories of this paper are: stat
10
The categories of this paper are: q-bio
26
The categories of this paper are: bayes-an
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The categories of this paper are: nucl-ex
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The categories of this paper are: gr-qc
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-th
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The categories of this paper are: cs
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The categories of this paper are: funct-an
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The categories of this paper are: quant-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: eess
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The categories of this paper are: patt-sol
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The categories of this paper are: ao-sci
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The categories of this paper are: nlin
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The categories of this paper are: chao-dyn