SUMMARY OF PROPOSAL 71189

MR. KOHJI MOLIKAWA
MORIKAWA@ASTR.TOHOKU.AC.JP

TOHOKU UNIVERSITY
AOBA-KU ARAMAKI AZA AOBA
SENDAI
MIYAGI JAPAN 980-8578
Tel: +81 22 217 6512 Fax: +81 22 217 6513
Medium: 2.5GB8MM
Subject: CLUSTERS OF GALAXIES AND SUPERCLUSTERS

GIANT LUMINOUS ARC STATISTICS USING PRECISE X-RAY DATA OF CLUSTERS OF GALAXIES IN GIOIA \& LUPPINO ARC SURVEY SAMPLE


ABSTRACT

Gioia & Luppino performed systematic arc survey. We made giant luminous arc statistics with an arc survey sample, which is a sub-sample of Gioia & Luppino's sample. There are 6 giant luminous arcs (GLA) found in the sub-sample. We performed ROSAT HRI observations for all the sub-sample clusters and made GLA statistics. We have concluded that no spherically symmetric lens models can reproduce observed frequency of GLAs in the sub-sample. We will complete intra-cluster gas temperature observations by ASCA for all the sub-sample clsuters during AO 6. We really need the intra-cluster gas temperature observation by ASCA for entire Gioia & Luppino's sample clusters. We propose 3 observations of clusters which are most luminous among the 15 Gioia & Luppino's sample clusters left to be observed.

CO-INVESTIGATORS
CO-I NAME INSTITUTE COUNTRY
MAKOTO HATTORITOHOKU UNIVERSITYJAPAN

TARGETS

TARGET NAMEPRIRADECTIMETCOFFGISSIS CNTOBS
1)MS 2318.7-2328
B
350.3458-23.1883
20 ks
N
Y
P
0.19000
1
2)MS 1231.3+1542
B
188.4683 15.4262
40 ks
N
Y
P
0.03000
1
3)MS 1201.5+2824
B
181.0167 28.1233
40 ks
N
Y
P
0.03000
1