SUMMARY OF PROPOSAL 52056
UNIVERSITIES SPACE RESEARCH ASSOCIATION
NASA/MSFC
HUNTSVILLE
AL USA 35812
Tel: 205-544-8920 Fax: 205-544-5800
Medium: 2GB8MM
Subject: X-RAY BINARIES
X-RAY SPECTROSCOPY OF THE TWO GALACTIC SUPERLUMINAL SOURCES: GRO J1655-40 AND GRS 1915+105
ABSTRACT
We propose to study the unusual absorption lines detected in the two Galactic superluminal jet sources, GRO J1655-40 and GRS 1915+105. The ASCA SIS is the only instrument currently capable of detecting the weak absorption lines near 7 and 8 keV in these remarkable objects. These observations will form a part of the continuing multiwavelength (gamma-ray, X-ray, optical (J1655 only), IR and radio) monitoring program on these two objects, and may potentially allow us to study these systems with ASCA in their various spectral states, including times of plasmoid ejections into the jets.
CO-INVESTIGATORS
| CO-I NAME | INSTITUTE | COUNTRY |
|---|
| S.N. ZHANG | USRA/MSFC | USA |
| B. ALAN HARMON | NASA/MSFC | USA |
| KEN EBISAWA | USRA/GSFC | USA |
| MARCO TAVANI | COLUMBIA | USA |
| WILLIAM PACIESAS | UAH | USA |
| STEFAN DIETERS | UAH | USA |
TARGETS
| TARGET NAME | PRI | RA | DEC | TIME | TC | OFF | GIS | SIS CNT | OBS |
|---|
| 1)GRS 1915+105 | 1 | 288.7979 | 10.9458 | 40 ks | N | N | P | 100.00000 | 2 |