SUMMARY OF SEQUENCE NUMBER 400082
SUMMARY OF SEQUENCE NUMBER 400082
Title: AXAF GRATING SPECTRA AND PRECISE POSITIONS OF BRIGHT GALACTIC-CENTER X-RAY SOURCES
Observer: Levine
Subject Category: BH and NS Binaries
Seq: 400082 ObsId: 00715
Long-term Plan bin: no LTS bin
ABSTRACT
We propose to observe 7 bright GX sources with the AXAF HETG to (1) study narrow emission and absorption line features in their spectra which will help disentangle the different physical processes involved, (2) determine the source positions to better than 1" accuracy which will greatly improve the chances of identifying the optical counterparts with future HST observations, and (3) measure the energy-dependent halo structures surrounding these sources to probe the composition and size distribution of the intervening interstellar grains.
TARGET SUMMARY
| TARGET NAME |
RA | DEC |
TIME |
SI |
GRAT |
TYPE |
TC |
ROLL |
PRE |
PHASE |
MULTI |
PRI |
| GX 349+2 |
256.435000 | -36.423611 |
10.00000 |
ACIS-S |
HETG |
GO |
no |
no |
no |
no |
no |
5 |
IMAGES
(NOTE: RASS images currently only available for targets LTS scheduled on or after Apr-09-2000)
PARAMETERS
Obscat Parameters
