Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Some Recent Results on Neutrino Oscillations in Hypercritical Accretion   The study of neutrino flavour oscillations in astrophysical sources has been
boosted in the last two decades thanks to achievements in experimental neutrino
physics and observational astronomy. We here discuss two cases of interest in
the modelling of short and long gamma-ray bursts (GRBs): hypercritical, i.e.
highly super-Eddington spherical/disk accretion onto a neutron star (NS)/black
hole (BH). We show that in both systems the ambient conditions of density and
temperature imply the occurrence of neutrino flavour oscillations, with a
relevant role of neutrino self-interactions.

22
The categories of this paper are: chao-dyn
26
The categories of this paper are: bayes-an
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The categories of this paper are: acc-phys
17
The categories of this paper are: q-fin
27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
4
The categories of this paper are: cond-mat
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
2
The categories of this paper are: math
3
The categories of this paper are: physics
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
1
The categories of this paper are: cs
28
The categories of this paper are: alg-geom