SUMMARY OF PROPOSAL 71028
INSTITUTE OF SPACE AND ASTRONAUTICAL SCIENCE
3-1-1 YOSHINODA
SAGAMIHARA
KANAGAWA JAPAN 229-8510
Tel: 0427-59-8135 Fax: 0427-59-8455
Medium: 4GBDAT
Subject: CATACLYSMIC VARIABLES
V834 CEN: STUDYING ACCRETING-POLE GEOMETRY WITH THE RESONANCE SCATTERING OF IRON K-ALPHA LINE
ABSTRACT
The hard X-ray emission region of magnetic cataclysmic variables is optically thick for the resonance scattering of iron K emission lines, although it is thin for the continuum emission. By means of a phase-resolved spectroscopy of the line and the continuum, we can constrain geometrical parameters of the emission region such as a height and a width. These parameters are important to investigate accretion geometry around Alfven radius, and also to fully understand the cooling process in the post shock accretion column. For this purpose, we propose a 60ksec observation of V834 Cen.
CO-INVESTIGATORS
| CO-I NAME | INSTITUTE | COUNTRY |
|---|
| RYUICHI FUJIMOTO | ISAS | JAPAN |
| KEIICHI MATSUZAKI | U-TOKYO | JAPAN |
| YUKIKATSU TERADA | U-TOKYO | JAPAN |
TARGETS
| TARGET NAME | PRI | RA | DEC | TIME | TC | OFF | GIS | SIS CNT | OBS |
|---|
| 1)V834 CEN | A | 212.2817 | -45.2883 | 60 ks | Y | N | P | 0.26000 | 1 |
TARGET 1
WE WILL SPECIFY PREFERRED OBSERVATION DATE IF THE LONG TERM TIME LINE IS RELEASED.
Epoch: 45048.4500 Period: 0.07049800 Min: 0.0000Max: 1.0000