SUMMARY OF PROPOSAL 82051
UNIVERSITIES SPACE RESEARCH ASSOCIATION
HUNTSVILLE
ALABAMA USA 35812
Tel: (256) 544-7711 Fax: (256) 544-5800
Medium: CD ROM
Subject: STARS
OBSERVATIONS OF TWO SOFT GAMMA REPEATERS, SGR 1627-41 AND SGR 1806-20
ABSTRACT
Soft gamma repeaters are rare sources of transient gamma ray emission and persistent X-ray emission; three of the four known are also X-ray pulsars. Recently, it has been found that both the X-ray flux and spin-down rate of SGR 1900+14 are not constant and the spectrum contains a thermal component. We propose to investigate these possibilities for SGR 1806-20, discover/confirm pulsations in SGR 1627-41, and confirm the fading of SGR 1627-41, and search for a thermal component in the SGR 1627-41 spectrum. Furthermore, we propose to search for proton cyclotron line features in the spectrum of both sources which would provide a confirmation of the magnetar model.
CO-INVESTIGATORS
| CO-I NAME | INSTITUTE | COUNTRY |
|---|
| PETER WOODS | UAH | USA |
| JAN VAN PARADIJS | UAH | USA |
| KEVIN HURLEY | UCB | USA |
| GOGUS ERSIN | UAH | USA |
| MICHAEL BRIGGS | UAH | USA |
| PENG LI | UCB | USA |
| CHRIS THOMPSON | UNC | USA |
| ROB DUNCAN | UT | USA |
| LARS BILDSTEN | ITP/UCSB | USA |
TARGETS
| TARGET NAME | PRI | RA | DEC | TIME | TC | OFF | GIS | SIS CNT | OBS |
|---|
| 1)SGR 1806-20 | B | 272.1642 | -20.4106 | 750 ks | N | N | P | 0.07500 | 1 |