Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Long Gamma Ray Bursts Trace The Star Formation History   We show that if the broad-line supernova explosions of type Ic (SNeIc)
produce the bulk of the observed long duration gamma ray bursts (LGRBs), which
include the high luminosity GRBs, low luminosity GRBs and X-ray flashes (XRFs),
and if LGRBs have the geometry assumed in the cannonball (CB) model of LGRBs,
then their rate measured by Swift and their redshift distribution are
consistent with the star formation rate (SFR) over the entire range of
redshifts where the SFR has been measured with sufficient accuracy.

27
The categories of this paper are: comp-gas
2
The categories of this paper are: math
26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
3
The categories of this paper are: physics
17
The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
20
The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
33
The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
7
The categories of this paper are: hep-th