Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ultra Fast Self-Compton Cooling   We investigate the synchrotron self-Compton process in a planar shell taking
the shock structure into account. We find that the energy density of the seed
photons could deviate from the one-zone estimate by order of unity depending on
the shock velocity and the electron cooling time. We also find that as the
electron cooling becomes faster, the seed photons are increased more, so that
the inverse Compton cooling becomes more efficient. This ``ultra'' fast cooling
may work in such as gamma-ray bursts, blazars and microquasars.

13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
28
The categories of this paper are: alg-geom
0
The categories of this paper are: hep-ph
7
The categories of this paper are: hep-th
17
The categories of this paper are: q-fin
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The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
26
The categories of this paper are: bayes-an
22
The categories of this paper are: chao-dyn