Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Morphological classification and structural parameter of galaxies in the
  Coma and Perseus clusters   We present the results of an isophotal shape analysis of galaxies in the Coma
and Perseus clusters. These data, together with those of two previous papers,
provide two complete samples of galaxies with reliable Hubble types in rich
clusters: 1) all galaxies brighter than m_b = 16.5 falling within one degree
(=2.3 Mpc) from the center of the Coma cluster (187 galaxies), 2) all galaxies
brighter than m_{Zwicky}=15.7 in a region of 5 deg 3' times 5 deg 27' around
the center of the Perseus cluster (139 galaxies). These two complete samples
cover 5 orders of magnitude in galaxy density and span areas of 91 and 17
Mpc^2, clustercentric radii up to 2.3 and 6.4 Mpc, for Perseus and Coma
respectively. They will be used in subsequent papers to study the dependence of
galaxy types on cluster environment and as reference samples in comparisons
with distant clusters.

9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
16
The categories of this paper are: stat
31
The categories of this paper are: ao-sci
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
2
The categories of this paper are: math
26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
13
The categories of this paper are: quant-ph
34
The categories of this paper are: chem-ph