Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: R-Process Nucleosynthesis in Core-Collapse Supernova Explosion   We study the r-process nucleosynthesis in neutrino-driven winds of
gravitational core collapse SNeII. Appropriate physical conditions are found
for successful r-process nucleosynthesis, which meet with several features of
heavy elements discovered recently in metal-deficient halo stars. We find also
several difficulties which are not explained in the present wind models. We
discuss quests for new insights in nuclear physics, astrophysics, and
astronomy.

28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess
31
The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
17
The categories of this paper are: q-fin
25
The categories of this paper are: patt-sol
1
The categories of this paper are: cs
29
The categories of this paper are: funct-an
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The categories of this paper are: atom-ph
16
The categories of this paper are: stat
21
The categories of this paper are: adap-org
12
The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys