SUMMARY OF PROPOSAL 53038
UNIVERSITY OF SOUTHAMPTON
HAMPSHIRE UK SO17 1BJ
SOUTHAMPTON
UNIVERSITY ROAD
Tel: (01703) 592101 Fax: (01703) 593910
Medium: 2GBDAT
Subject: COSMIC X-RAY BACKGROUND AND DEEP SURVEYS AND OTHER
THE ORIGIN OF THE HARD X-RAY BACKGROUND: A MEDIUM DEPTH ASCA SURVEY
ABSTRACT
Although, from ROSAT observations, the origin of the soft (0.1-2 keV) X-ray background (XRB) is largely understood, the origin of the harder (2-10 keV) XRB is not. To address this question we are mapping a 2 degree diameter field with 10 ASCA pointings. We expect ~60 sources, a reasonable number from which to determine the contribution of various classes of object to the XRB. Here we request the 3 pointings required to complete the survey. ROSAT HRI observations are already allocated for all fields. These will provide arcsec positions for ~3/4 of the ASCA sources, allowing unambiguous optical identification and assisting X-ray spectral determination. The 2 degree survey field is a perfect match to the 2 degree field of the AAT spectrometer, allowing very efficient optical identification.
CO-INVESTIGATORS
| CO-I NAME | INSTITUTE | COUNTRY |
|---|
| TAKAYA OHASHI | TOKYO METROPOLITAN | JAPAN |
| MARTIN TURNER | LEICESTER UNIVERSITY | UK |
| NORIKO YAMASAKI | TOKYO METROPOLITAN | JAPAN |
| ANTHONY LAWSON | SOUTHAMPTON UNI. | UK |
| ANDREW NEWSAM | SOUTHAMPTON UNI. | UK |
TARGETS
| TARGET NAME | PRI | RA | DEC | TIME | TC | OFF | GIS | SIS CNT | OBS |
|---|
| 1)FIELD 1 | 2 | 40.5125 | -22.7747 | 40 ks | N | N | P | 0.10000 | 1 |