SUMMARY OF PROPOSAL 62074

DR. G. VASISHT
GV@ASTRO.CALTECH.EDU

CALTECH
105-24
PASADENA
CA USA 91125
Tel: 818-354-6979 Fax: 818-568-9352
Medium: 2GB8MM
Subject: X-RAY BINARIES

THE ENIGMATIC SOURCE G 70.7+1.2


ABSTRACT

G~70.7+1.2 is a region of radio nebulosity containing a bright infra-red star with a unique emission spectrum. Its non-thermal radio spectrum is indicative of a central source of relativistic particles, eg., a pulsar. The observations are best interpreted in terms of a binary with a neutron star component plowing through dense interstellar medium. We propose to observe G~70.7+1.2 for 40-ks with ASCA. X-ray spectroscopy is the best way to elucidate the enigma of G~70.7+1.2 in terms of either and accreting neutron star or a rotation powered pulsar.

CO-INVESTIGATORS
CO-I NAME INSTITUTE COUNTRY
S. SHIBATAYAMAGATA U.JAPAN
S. R. KULKARNICALTECHUSA

TARGETS

TARGET NAMEPRIRADECTIMETCOFFGISSIS CNTOBS
1)G 70.7+1.2
2
301.0958 33.6514 40 ksN
N
P
0.10000
2

TARGET 1

THE TWO OBSERVATIONS SHOULD BE TAKEN ONE IN EACH IN THE TWO POSSIBLE VIEWING WINDOWS THIS YEAR