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ID 31110
file
creator
Yagi, Masafumi
Komiyama, Yutaka
Kashikawa, Nobunari
Furusawa, Hisanori
Okamura, Sadanori
Graham, Alister W.
Miller, Neal A.
Carter, David
Mobasher, Bahram
Jogee, Shardha
subject
galaxies: clusters: individual (Abell 1656)
galaxies: evolution
galaxies: structure
NDC
Astronomy. Space sciences
abstract
We present images of extended H alpha clouds associated with 14 member galaxies in the Coma cluster obtained from deep narrowband imaging observations with the Suprime-Cam at the Subaru Telescope. The parent galaxies of the extended H alpha clouds are distributed farther than 0.2 Mpc from the peak of the X-ray emission of the cluster. Most of the galaxies are bluer than g - r approximate to 0.5 and they account for 57% of the blue ( g - r < 0.5) bright ( r < 17.8 mag) galaxies in the central region of the Coma cluster. They reside near the red- and blueshifted edges of the radial velocity distribution of Coma cluster member galaxies. Our findings suggest that most of the parent galaxies were recently captured by the Coma cluster potential and are now infalling toward the cluster center with their disk gas being stripped off and producing the observed H alpha clouds.
journal title
The Astronomical Journal
volume
Volume 140
issue
Issue 6
start page
1814
end page
1829
date of issued
2010-12
publisher
IOP Publishing Ltd
issn
0004-6256
ncid
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
author
rights
(c) IOP Publishing 2011
relation url
department
Hiroshima Astrophysical Science Center



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