Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Test by JANZOS of the Standard Model of Cosmic Ray Acceleration in the
  COMPTEL/ROSAT Supernova Renmant   A search for ultra-high energy gamma-rays emitted by the young, nearby
supernova remnant that was discovered recently by the COMPTEL and ROSAT
satellites was made using the JANZOS database for the period 1987-1993. A 95%
confidence upper limit on the flux above 100 TeV of 3x10^(-13)cm^(-2)sec^(-1)
was obtained. This is an order of magnitude below the expected flux based on
the standard model of cosmic ray acceleration in supernova shocks. An optical
survey of the region that has been commenced is also reported. This uses UK and
ESO Schmidt plates, and CCD images by a NZ/Japan microlensing group.

24
The categories of this paper are: dg-ga
3
The categories of this paper are: physics
20
The categories of this paper are: acc-phys
23
The categories of this paper are: solv-int
13
The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
26
The categories of this paper are: bayes-an
17
The categories of this paper are: q-fin
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
1
The categories of this paper are: cs
25
The categories of this paper are: patt-sol