Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Comment on "Heavy element production in inhomogeneous big bang
  nucleosynthesis"   The work of Matsuura et al. [Phys. Rev. D 72, 123505 (2005);
astro-ph/0507439] claims that heavy nuclei could have been produced in a
combined p- and r-process in very high baryon density regions of an
inhomogeneous big bang. However, they do not account for observational
constraints and previous studies which show that such high baryon density
regions did not significantly contribute to big bang abundances.

29
The categories of this paper are: funct-an
17
The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph
19
The categories of this paper are: eess
14
The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
13
The categories of this paper are: quant-ph
37
The categories of this paper are: supr-con
2
The categories of this paper are: math
0
The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio
8
The categories of this paper are: hep-ex
27
The categories of this paper are: comp-gas
36
The categories of this paper are: cmp-lg
24
The categories of this paper are: dg-ga
1
The categories of this paper are: cs