Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Gamma Ray Bursts: Not so Much Deadlier than We Thought   We analyze the additional effect on planetary atmospheres of recently
detected gamma-ray burst afterglow photons in the range up to 1 TeV. For an
Earth-like atmosphere we find that there is a small additional depletion in
ozone versus that modeled for only prompt emission. We also find a small
enhancement of muon flux at the planet surface. Overall, we conclude that the
additional afterglow emission, even with TeV photons, does not result in a
significantly larger impact over that found in past studies.

37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
17
The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
2
The categories of this paper are: math
34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
28
The categories of this paper are: alg-geom
5
The categories of this paper are: gr-qc
8
The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
13
The categories of this paper are: quant-ph
0
The categories of this paper are: hep-ph
22
The categories of this paper are: chao-dyn