SUMMARY OF PROPOSAL 53035

DR ALASTAIR C EDGE
ACE@AST.CAM.AC.UK

UNIVERSITY OF CAMBRIDGE
CAMBS UK CB3 0HA
CAMBRIDGE
MADINGLEY ROAD
Tel: -44-1223-330803 Fax: -44-1223-337523
Medium: 4GBDAT
Subject: CLUSTERS OF GALAXIES AND SUPERCLUSTERS

ASCA OBSERVATION OF THE HIGH X-RAY LUMINOSITY CLUSTER ABELL1423


ABSTRACT

We propose to observe the high X-ray luminosity cluster Abell 1423 (z=0.21). The ASCA data will be combined with ROSAT HRI data and a map of the Sunyaev-Zel'dovich decrement from the Ryle Telescope to constrain the properties of the cluster and derive an estimate of the Hubble Constant. The proposed target is part of a large sample for which we have ROSAT, ASCA and Ryle data that will permit the direct determination of the cluster temperature function at a redshift of 0.2 and provide a sample of S-Z detections free from gross projection effects.

CO-INVESTIGATORS
CO-I NAME INSTITUTE COUNTRY
STEVEN ALLENIOA, CAMBRIDGEUK
ANDREW FABIANIOA, CAMBRIDGEUK
HARALD EBELINGIFA, HONOLULUUSA
MIKE JONESMRAO, CAMBRIDGEUK
JOANNE BAKERMRAO, CAMBRIDGEUK

TARGETS

TARGET NAMEPRIRADECTIMETCOFFGISSIS CNTOBS
1)A1423
2
179.3292 33.6125 40 ksN
Y
P
0.37000
1