SUMMARY OF SEQUENCE NUMBER 400003
SUMMARY OF SEQUENCE NUMBER 400003
Title: ECLIPSING BINARY X-RAY HALOS AND INTERSTELLAR GRAIN PROPERTIES
Observer: FEIGELSON
Subject Category: BH and NS Binaries
Seq: 400003 ObsId: 00090
Long-term Plan bin: 5-Apr-2000
ABSTRACT
Study of the X-ray scattered halo around obscured Galactic X-ray sources can provide insights into the size, density, composition and spatial distribution of interstellar grains. Eclipsing X-ray binary systems offer unique advantages, as the evolution of the halo following an abrupt eclipse depends on the distance and distribution of clouds. A high-resolution spectrum will further provide rich information on the interstellar matter composition.
TARGET SUMMARY
| TARGET NAME |
RA | DEC |
TIME |
SI |
GRAT |
TYPE |
TC |
ROLL |
PRE |
PHASE |
MULTI |
PRI |
| 4U 1538-52 |
235.596667 | -52.386111 |
24.00000 |
ACIS-I |
NONE |
GTO |
yes |
no |
no |
yes |
no |
5 |
IMAGES
(NOTE: RASS images currently only available for targets LTS scheduled on or after Apr-09-2000)
PARAMETERS
Obscat Parameters
