Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Upper limits of the $^{22}$Na yield from O-Ne nova   The radioactive isotope $^{22}$Na is one of the primary tracer isotopes that
may potentially be detectable by gamma-ray spectroscopy. This isotope is
predicted to be produced in ONe nova explosions, yet no detection of its 1.275
MeV gamma-ray signature has been reported so far. In particular, 6 years of
COMPTEL observations of the galactic bulge, a region that should be
particularily rich in nova explosions, have only led to an upper-limit. In this
paper we will present the implications of the COMPTEL upper flux limit on the
permissible $^{22}$Na yield for ONe novae. We base our analysis on extensive
Monte-Carlo simulations of galactic 1.275 MeV emission that were constrained by
the most recent results of galactic nova rates and distributions. We
demonstrate that the non-detection of the 1.275 MeV line from the galactic
bulge implies a solid upper $^{22}$Na yield limit in agreement with current
theoretical nucleosynthesis calculations.

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The categories of this paper are: eess
34
The categories of this paper are: chem-ph
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The categories of this paper are: stat
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
26
The categories of this paper are: bayes-an
0
The categories of this paper are: hep-ph
25
The categories of this paper are: patt-sol
15
The categories of this paper are: nucl-ex
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The categories of this paper are: econ
20
The categories of this paper are: acc-phys
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The categories of this paper are: quant-ph
9
The categories of this paper are: nlin
3
The categories of this paper are: physics
32
The categories of this paper are: atom-ph