Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Nucleosynthesis and Reaction Rates of Fluorine 19 ($^{19}F$) in the
  Sun   We investigate the abundance of $^{19}F$ in the Sun through the
nucleosynthesis scenario. In addition, we calculate the rate equations and
reaction rates of the nucleosynthesis of $^{19}F$ at different temperature
scale. Other important functions of this nucleosynthesis (nuclear partition
function and statistical equilibrium conditions) are also obtained. The
resulting stability of $^{19}F$ occurs at nucleus with A = 19 and Mass Excess=
-1.4874 MeV. As a result, this will tend to a series of neutron captures and
beta-decay until $^{19}F$ is produced. The reaction rate of $^{15}N$ ($\alpha$,
$\gamma$) $^{19}F$ was dominated by the contribution of three low-energy
resonances, which enhanced the final $^{19}F$ abundance in the envelope.

28
The categories of this paper are: alg-geom
32
The categories of this paper are: atom-ph
19
The categories of this paper are: eess
29
The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th
4
The categories of this paper are: cond-mat
18
The categories of this paper are: econ
2
The categories of this paper are: math
36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
13
The categories of this paper are: quant-ph
25
The categories of this paper are: patt-sol
11
The categories of this paper are: hep-lat
20
The categories of this paper are: acc-phys
1
The categories of this paper are: cs