Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Low-Resolution Spectrum of the Extragalactic Background Light with AKARI
  InfraRed Camera   The Extragalactic Background Light (EBL) as an integrated light from outside
of our Galaxy includes information of the early universe and the Dark Ages. We
analyzed the spectral data of the astrophysical diffuse emission obtained with
the low-resolution spectroscopy mode on the AKARI Infra-Red Camera (IRC) in
1.8-5.3 um wavelength region. Although the previous EBL observation in this
wavelength region is restricted to the observations by DIRBE and IRTS, this
study adds a new independent result with negligible contamination of Galactic
stars owing to higher sensitivity for point sources. Other two major foreground
components, the zodiacal light (ZL) and the diffuse Galactic light (DGL), were
subtracted by taking correlations with ZL brightness estimated by the DIRBE ZL
model and with the 100 um dust thermal emission, respectively. The isotropic
emission was obtained as EBL, which shows significant excess over integrated
light of galaxies at <4 um. The obtained EBL is consistent with the previous
measurements by IRTS and DIRBE.

2
The categories of this paper are: math
15
The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
3
The categories of this paper are: physics
9
The categories of this paper are: nlin
4
The categories of this paper are: cond-mat
23
The categories of this paper are: solv-int
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs
33
The categories of this paper are: plasm-ph