Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nucleosynthesis in Black-Hole-Forming Supernovae and Abundance Patterns
  of Extremely Metal-Poor Stars   Stars more massive than $\sim$ 20 - 25 \ms form a black hole at the end of
their evolution. Stars with non-rotating black holes are likely to collapse
"quietly" ejecting a small amount of heavy elements (Faint supernovae). In
contrast, stars with rotating black holes are likely to give rise to very
energetic supernovae (Hypernovae). We present distinct nucleosynthesis features
of these two types of "black-hole-forming" supernovae. Nucleosynthesis in
Hypernovae is characterized by larger abundance ratios (Zn,Co,V,Ti)/Fe and
smaller (Mn,Cr)/Fe than normal supernovae, which can explain the observed trend
of these ratios in extremely metal-poor stars. Nucleosynthesis in Faint
supernovae is characterized by a large amount of fall-back. We show that the
abundance pattern of the recently discovered most Fe-poor star, HE0107-5240,
and other extremely metal-poor carbon-rich stars are in good accord with those
of black-hole-forming supernovae, but not pair-instability supernovae. This
suggests that black-hole-forming supernovae made important contributions to the
early Galactic (and cosmic) chemical evolution. Finally we discuss the nature
of First (Pop III) Stars.

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The categories of this paper are: chem-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: quant-ph
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The categories of this paper are: q-fin
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The categories of this paper are: math-ph
12
The categories of this paper are: nucl-th
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The categories of this paper are: stat
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs
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The categories of this paper are: supr-con
3
The categories of this paper are: physics
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The categories of this paper are: alg-geom
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The categories of this paper are: nlin
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The categories of this paper are: ao-sci
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The categories of this paper are: solv-int
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The categories of this paper are: hep-lat