Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: R-process abundances and cosmochronometers in old metal-poor halo stars   Proc. IX. Workshop on Nuclear Astrophysics, Ringberg Castle, Tegernsee,
Bavaria; March 1998

23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th
15
The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci
8
The categories of this paper are: hep-ex
25
The categories of this paper are: patt-sol
4
The categories of this paper are: cond-mat
20
The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg
5
The categories of this paper are: gr-qc
0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
24
The categories of this paper are: dg-ga
28
The categories of this paper are: alg-geom
3
The categories of this paper are: physics