SUMMARY OF PROPOSAL 72189
UNIVERSITY OF HAWAII
2680 WOODLAWN DRIVE
HONOLULU
HI USA 96822
Tel: +1 808 956 9695 Fax: +1 808 956 9590
Medium: CD ROM
Subject: CLUSTERS OF GALAXIES AND SUPERCLUSTERS
A COMPARATIVE STUDY OF X-RAY AND LENSING MASS DETERMINATIONS FOR THE MOST X-RAY LUMINOUS CLUSTERS IN THE SKY
ABSTRACT
We propose ASCA observations of four clusters of galaxies found to be among the most X-ray luminous clusters in the sky in the ROSAT All-Sky Survey as well as in deep HRI pointed observations. These systems form part of a statistical sample of massive clusters selected from RASS cluster samples for an in-depth study of the mass distribution in clusters by combining X-ray mass determinations with those from observations of strong gravitational lensing. For all targets proposed here for observation we have obtained deep CCD images from Mauna Kea. Our combined X-ray/lensing approach will provide the most accurate and reliable measurement of cluster masses for a statistical sample to date and will allow us to resolve the issue of discrepancies between X-ray and lensing mass determinations.
CO-INVESTIGATORS
| CO-I NAME | INSTITUTE | COUNTRY |
|---|
| STEVE ALLEN | IOA, CAMBRIDGE | UK |
| ANDY FABIAN | IOA, CAMBRIDGE | UK |
TARGETS
| TARGET NAME | PRI | RA | DEC | TIME | TC | OFF | GIS | SIS CNT | OBS |
|---|
| 2)A402 | B | 44.4250 | -22.1528 | 50 ks | N | N | P | 0.12000 | 1 |