Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effect of magnetic field on electron neutrino sphere in pulsars   We study the neutrino interaction rates through charged as well as neutral
current weak interactions in hot, dense magnetized matter. At densities near
the neutrino sphere, matter in the presence of intense magnetic field is
polarized and electrons and protons typically occupy the lowest Landau level.
The weak interaction rates in such a situation are severally modified leading
to a sizable change in neutrino opacity and consequently on the location of the
neutrino sphere which also gets distorted. This has implications for pulsar
velocity explanations.

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The categories of this paper are: atom-ph
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The categories of this paper are: solv-int
3
The categories of this paper are: physics
16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
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The categories of this paper are: comp-gas
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The categories of this paper are: nucl-th
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The categories of this paper are: math-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: q-alg
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The categories of this paper are: ao-sci
2
The categories of this paper are: math
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The categories of this paper are: astro-ph
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The categories of this paper are: econ
11
The categories of this paper are: hep-lat