Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: AGB Connection and Ultraviolet Luminosity Excess in Elliptical Galaxies   Relying on infrared surface brightness fluctuactions to trace AGB properties
in a sample of elliptical galaxies in the Virgo and Fornax clusters, we assess
the puzzling origin of the "UV-upturn" phenomenon, recently traced down to the
presence of a hot horizontal branch stellar component. We find that the
UV-upturn actually signals a profound change in the c-m diagram of stellar
populations in elliptical galaxies, involving both the hot stellar component
and red-giant evolution.

30
The categories of this paper are: q-alg
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
7
The categories of this paper are: hep-th
36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
13
The categories of this paper are: quant-ph
2
The categories of this paper are: math
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
4
The categories of this paper are: cond-mat
35
The categories of this paper are: mtrl-th
16
The categories of this paper are: stat