Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Faint dwarf spheroidals in the Fornax Cluster: A flat luminosity
  function   We have discovered about 70 very faint dwarf galaxies in the Fornax Cluster.
These dSphs candidates follow the same magnitude-surface brightness relation as
their counterparts in the Local Group, and even extend it to fainter limits.
The faintest dSph candidate in our sample has an absolute magnitude of M_V =
-8.8 mag and a central surface brightness of mu_V = 27 mag/arcsec^2. There
exists a tight color-magnitude relation for the early-type galaxies in Fornax
that extends from the giant to the dwarf regime. The faint-end slope of the
luminosity function of the early-type dwarfs is flat (alpha = -1.1+/-0.1),
contrary to the results obtained by Kambas et al. (2000).

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The categories of this paper are: hep-ph
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The categories of this paper are: adap-org
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The categories of this paper are: supr-con
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The categories of this paper are: comp-gas
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The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
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The categories of this paper are: nucl-th
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The categories of this paper are: q-fin
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-ex
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The categories of this paper are: q-bio
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The categories of this paper are: cs
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The categories of this paper are: econ
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The categories of this paper are: nlin
29
The categories of this paper are: funct-an
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The categories of this paper are: atom-ph