Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mapping the Diffuse Ultraviolet Sky with GALEX   We present a map of the diffuse ultraviolet cosmic background in two
wavelength bands (FUV: 1530 {\AA}; NUV: 2310 {\AA}) over almost 75% of the sky
using archival data from the GALEX mission. Most of the diffuse flux is due to
dust-scattered starlight and follows a cosecant law with slopes of 545 photons
cm-2 s-1 sr-1 {\AA}-1 and 433 photons cm-2 s-1 sr-1 {\AA}-1 in the FUV and NUV
bands, respectively. There is a strong correlation with the 100 {\mu}m IRAS
flux with an average UV/IR ratio of 300 photons cm-2 s-1 sr-1 {\AA}-1 (MJy
sr-1)-1 in the FUV band and 220 photons cm-2 s-1 sr-1 {\AA}-1 (MJy sr-1)-1 in
the NUV but with significant variations over the sky. In addition to the large
scale distribution of the diffuse light, we note a number of individual
features including bright spots around the hot stars Spica and Achernar.

36
The categories of this paper are: cmp-lg
24
The categories of this paper are: dg-ga
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio
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The categories of this paper are: supr-con
7
The categories of this paper are: hep-th
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
3
The categories of this paper are: physics
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The categories of this paper are: ao-sci
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
16
The categories of this paper are: stat
34
The categories of this paper are: chem-ph
4
The categories of this paper are: cond-mat