Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: KYDISC: Galaxy Morphology, Quenching, and Mergers in the Cluster
  Environment   We present the KASI-Yonsei Deep Imaging Survey of Clusters (KYDISC) targeting
14 clusters at 0.015 < z < 0.144 using the Inamori Magellan Areal Camera and
Spectrograph on the 6.5-meter Magellan Baade telescope and the MegaCam on the
3.6-meter Canada-France-Hawaii Telescope. We provide a catalog of cluster
galaxies that lists magnitudes, redshifts, morphologies, bulge-to-total ratios,
and local density. Based on the 1409 spectroscopically-confirmed cluster
galaxies brighter than -19.8 in the r-band, we study galaxy morphology, color,
and visual features generated by galaxy mergers. We see a clear trend between
morphological content and cluster velocity dispersion, which was not presented
by previous studies using local clusters. Passive spirals are preferentially
found in a highly dense region (i.e., cluster center), indicating that they
have gone through the environmental quenching. In deep images (mu_r ~ 27
mag/"^2), 20% of our sample show signatures of recent mergers, which is not
expected from theoretical predictions and a low frequency of ongoing mergers in
our sample (~ 4%). Such a high fraction of recent mergers in the cluster
environment supports a scenario that the merger events that made the features
have preceded the galaxy accretion into the cluster environment. We conclude
that mergers affect a cluster population mainly through the pre-processing on
recently accreted galaxies.

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The categories of this paper are: hep-ex
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The categories of this paper are: adap-org
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The categories of this paper are: hep-ph
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The categories of this paper are: stat
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The categories of this paper are: gr-qc
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The categories of this paper are: dg-ga
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The categories of this paper are: physics
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The categories of this paper are: math-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: q-fin
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The categories of this paper are: q-alg
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The categories of this paper are: funct-an
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The categories of this paper are: hep-th
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The categories of this paper are: cmp-lg
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The categories of this paper are: eess
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The categories of this paper are: comp-gas