Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Solar opacity, neutrino signals and helioseismology   In connection with the recent suggestion by Tsytovich et al. that opacity in
the solar core could be overestimated, we consider the following questions: i)
What would a 10\% opacity reduction imply for the solar neutrino puzzle? ii) Is
there any hope of solving the solar neutrino puzzle by changing opacity? iii)
Is a 10\% opacity reduction testable with helioseismological data?

33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con
20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc
12
The categories of this paper are: nucl-th
19
The categories of this paper are: eess
4
The categories of this paper are: cond-mat
24
The categories of this paper are: dg-ga
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg