Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The nuclear cusp slopes of dwarf elliptical galaxies   We derive the light profiles for a sample of 25 dwarf elliptical galaxies
observed by us with HST/WFPC2 in F555W and F814W. These profiles are fitted
with Nuker, R^1/4, exponential, and Sersic laws, and are also used to derive
the nuclear cusp slopes gamma. We discuss the correlation of nuclear cusp slope
with galactic luminosity, presence of a nucleus, and type of light profile. The
results are compared to those found in the literature for elliptical galaxies
and the bulges of spiral galaxies. We find that as a class the nuclear regions
of dwarf ellipticals are very similar to those of the exponential bulges of
spiral galaxies, and have nuclear cusp slopes shallower than those of bulges
that were well fitted by a de Vaucouleurs R^1/4 profile with the same
luminosity. For the 14 nucleated galaxies in our sample this conclusion is less
certain than for the 11 non-nucleated objects since it relies on an
extrapolation of galaxy light under the nucleus. In terms of their light
profiles and nuclear properties, most spheroidal stellar systems can be broadly
divided into two subclasses: the exponential shallow cusp objects and the
R^1/4, steep cusp objects. Membership of a class does not appear to correlate
with the presence of a massive stellar disk.

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The categories of this paper are: alg-geom
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The categories of this paper are: hep-th
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The categories of this paper are: quant-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: mtrl-th
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The categories of this paper are: acc-phys
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The categories of this paper are: gr-qc
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The categories of this paper are: nucl-th
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The categories of this paper are: q-bio
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The categories of this paper are: q-alg
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The categories of this paper are: atom-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: q-fin
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The categories of this paper are: chem-ph
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The categories of this paper are: cond-mat
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The categories of this paper are: stat