Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On saturation of betatron acceleration of dust particles behind shock
  fronts   Possible saturation of betatron acceleration of dust particles behind strong
shock fronts from supernovae is considered. It is argued that the efficiency of
the nonthermal dust destruction should be substantially lower than the value
estimated from a traditional description of betatron acceleration of dust
grains behind radiative shock waves. The inhibition of the nonthermal
destruction can be connected with the mirror instability developed in the dust
component behind strong shocks with the velocity 3 times exceeding the Alfv\'en
speed. The instability develops on characteristic time scales much shorter the
age of a supernova remnant, thus its influence on the efficiency of dust
destruction can be substantial: in the range of shock velocities 100 km
s$^{-1}<v_s<300$ km s$^{-1}$ the destruction efficiency can be an order of
magnitude lower that normally estimated.

16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
4
The categories of this paper are: cond-mat
23
The categories of this paper are: solv-int
15
The categories of this paper are: nucl-ex
3
The categories of this paper are: physics
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
18
The categories of this paper are: econ