SUMMARY OF PROPOSAL 71161

DR. TAKAYA OHASHI
OHASHI@PHYS.METRO-U.AC.JP

TOKYO METROPOLITAN UNIVERSITY
1-1, MINAMI-OSAWA
HACHIOJI-SHI
TOKYO JAPAN 192-0397
Tel: +81-426-77-2492 Fax: +81-426-77-2483
Medium: 4GBDAT
Subject: CLUSTERS OF GALAXIES AND SUPERCLUSTERS

MAPPING OF THE VIRGO CLUSTER: INTERACTION WITH THE M60 SUBCLUSTER AND METALLICITY GRADIENT AROUND M87


ABSTRACT

This is the 3rd run of the Virgo cluster mapping project with 3 main scientific aims. The 1st one is to obtain an evidence of interaction between M87 cluster and M60 subcluster in the form of temperature rise and metallicity variation, such as seen in M49 direction. The 2nd aim is to map out r = 1.5 deg (450 kpc) region of M87 and to trace the steep abundance gradients of Fe, Si and S out to the cluster scale. The morphological comparison between metals and galaxies should reveal the origin and process of metal injection. Finally, with this observation, we will almost complete the full X-ray map of the Virgo cluster up to 10 keV. Detailed comparison of X-ray and optical structures will tell us how Virgo cluster has evolved and acquired the present complex morphology.

CO-INVESTIGATORS
CO-I NAME INSTITUTE COUNTRY
KEN'ICHI KIKUCHITOKYO METROPOLITAN UJAPAN
KYOKO MATSUSHITATOKYO METROPOLITAN UJAPAN
NORIKO YAMASAKITOKYO METROPOLITAN UJAPAN
YOSHITAKA ISHISAKITOKYO METROPOLITAN UJAPAN
HAJIME EZAWATOKYO METROPOLITAN UJAPAN
TAE FURUSHOTOKYO METROPOLITAN UJAPAN
AKIHIRO KUSHINOTOKYO METROPOLITAN UJAPAN
SHIN SASAKITOKYO METROPOLITAN UJAPAN
KAZUO MAKISHIMAUNIV. OF TOKYOJAPAN
YASUSHI FUKAZAWAUNIV. OF TOKYOJAPAN

TARGETS

TARGET NAMEPRIRADECTIMETCOFFGISSIS CNTOBS
1)VIRGO_EAST_01
B
186.5412 11.9194
20 ks
N
Y
P
0.10000
1
2)VIRGO_EAST_02
B
187.1004 12.0705
10 ks
N
Y
P
0.30000
1
3)VIRGO_EAST_03
B
188.0188 13.7408
15 ks
N
Y
P
0.20000
1
4)VIRGO_EAST_04
B
188.5288 13.3656
15 ks
N
Y
P
0.20000
1
5)VIRGO_EAST_05
B
187.9667 13.0183
10 ks
N
Y
P
0.30000
1
6)VIRGO_EAST_06
B
188.2187 12.5254
10 ks
N
Y
P
0.30000
1
7)VIRGO_EAST_07
B
188.1554 11.9181
10 ks
N
Y
P
0.30000
1
8)VIRGO_EAST_08
B
188.2450 11.3237
20 ks
N
Y
P
0.10000
1
9)VIRGO_EAST_09
B
188.7463 11.8427
20 ks
N
Y
P
0.10000
1
10)VIRGO_EAST_10
B
188.9187 11.2373
20 ks
N
Y
P
0.10000
1
11)VIRGO_EAST_11
B
189.5375 12.3553
20 ks
N
Y
P
0.10000
1
12)VIRGO_EAST_12
B
189.5921 11.1495
20 ks
N
Y
P
0.10000
1
13)VIRGO_EAST_13
B
189.8925 11.6929
20 ks
N
Y
P
0.10000
1