Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ruling out a massive-assymptoic giant-branch star as the progenitor of
  supernova 2005cs   We calculate the predicted UBVRIJHK absolute magnitudes for models of
supernova progenitors and apply the result to the case of supernova 2005cs. We
agree with previous results that the initial mass of the star was of low,
around 6 to 8 M(sun). However such stars are thought to go through second
dredge-up to become AGB stars. We show that had this occurred to the progenitor
of 2005cs it would have been observed in JHK pre-explosion images. The
progenitor was not detected in these bands and therefore we conclude that it
was not an AGB star. Furthermore if some AGB stars do produce supernovae they
will have a clear signature in pre-explosion near-infrared images.
Electron-capture supernovae are thought to occur in AGB stars, hence the
implication is that 2005cs was not an electron-capture supernova but was the
collapse of an iron core.

19
The categories of this paper are: eess
0
The categories of this paper are: hep-ph
15
The categories of this paper are: nucl-ex
14
The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
18
The categories of this paper are: econ
32
The categories of this paper are: atom-ph
4
The categories of this paper are: cond-mat
36
The categories of this paper are: cmp-lg
5
The categories of this paper are: gr-qc
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
37
The categories of this paper are: supr-con