SUMMARY OF PROPOSAL 62128
NASA GSFC/ USRA
MD USA 20771
Tel: 301-286-5190 Fax: 301-286-1629
Medium: CD ROM
A SEARCH FOR VARIATIONS IN THE X-RAY ABSORBER FOR A SEYFERT 2 GALAXY.
ABSTRACTIt has never been unambiguously established whether the X-ray absorber in Seyfert 2 galaxies is variable. Some tentative claims have been made to this effect, but these have been based either upon comparison between observations made by different X-ray detectors, or based upon data from instruments with a large field-of-view, where contaminating X-ray sources cast doubt on the origin of the spectral variability. The moderate spatial resolution and good spectral resolution of ASCA allow us the opportunity to establish absorption variability in a Seyfert 2 galaxy. We propose to monitor NGC 526A, which has shown marked X-ray spectral variability in the past.
|CO-I NAME ||INSTITUTE ||COUNTRY |
| KIRPAL NANDRA||NASA/GSFC||USA|
| HAGAI NETZER||TEL AVIV UNIV.||ISRAEL|
|TARGET NAME||PRI||RA||DEC||TIME||TC||OFF||GIS||SIS CNT||OBS|
|1)NGC 526A|| 3|| 20.9792||-35.0700|| 50 ks||Y||Y||P||0.64000||4|
TARGET 14 X 50 KSEC REQUESTED. 1X50 K IN DEC 1997 (START OF AO6) TO JAN 1998. 3 X 50 K IN JUN 4 - JUL 25 1998 WINDOW, SPACED AT LEAST TWO WEEKS APART.
Min. Interval: 1210.000ksecMax. Interval: 1814.000 ksec