SUMMARY OF PROPOSAL 51078
UNIVERSITY OF TOKYO
TOKYO JAPAN 113
BUNKYO-KU
7-3-1 HONGO
Tel: 03-3812-2111 EX4173 Fax: 03-3812-6938
Medium: 2.5GB8MM
Subject: SUPERNOVA REMNANTS AND GALACTIC DIFFUSE EMISSION
X-RAY EMISSIONS AT THE EDGE OF THE GALACTIC RIDGE (L
ABSTRACT
We propose to observe the edge of the galactic ridge at l = 60 deg. From the past observations with ASCA, we get an evidence that a softer (kT = 0.8 keV) component exists in the Galactic ridge emission in addition to the well-known harder (kT = 7 keV) component. This soft component requires a Galactic absorption with a column density of N_H = 0.7*10^22, which implies that it is located at an effective distance of 2 kps away from us. Then, how far does this soft component extend? What is its origin? Is there any relation with the 7 keV hard component? Such a soft component has also been discovered in many other spiral galaxies, therefore, this would be an our Galaxy version. By observing the edge of the Galactic ridge, we will get information about the behavior of this soft component.
CO-INVESTIGATORS
| CO-I NAME | INSTITUTE | COUNTRY |
|---|
| KAZUO MAKISHIMA | UNIVERSITY OF TOKYO | JAPAN |
| KEIICHI MATSUZAKI | UNIVERSITY OF TOKYO | JAPAN |
| SHIGEO YAMAUCHI | IWATE UNIVERSITY | JAPAN |
| NORIKO YAMASAKI | TOKYO METROPOLITAN U | JAPAN |
TARGETS
| TARGET NAME | PRI | RA | DEC | TIME | TC | OFF | GIS | SIS CNT | OBS |
|---|
| 1)RIDGE EDGE #1 | 2 | 295.1579 | 22.5858 | 10 ks | N | Y | P | 0.02000 | 1 |
| 2)RIDGE EDGE #2 | 2 | 295.4804 | 23.1072 | 10 ks | N | Y | P | 0.02000 | 1 |
| 3)RIDGE EDGE #3 | 2 | 295.8050 | 23.6279 | 10 ks | N | Y | P | 0.02000 | 1 |
| 4)RIDGE EDGE #4 | 2 | 296.1325 | 24.1479 | 10 ks | N | Y | P | 0.02000 | 1 |
| 5)RIDGE EDGE #5 | 2 | 296.4625 | 24.6673 | 10 ks | N | Y | P | 0.02000 | 1 |
| 6)RIDGE EDGE #6 | 2 | 296.7950 | 25.1859 | 10 ks | N | Y | P | 0.02000 | 1 |
| 7)RIDGE EDGE #7 | 2 | 297.1304 | 25.7037 | 10 ks | N | Y | P | 0.02000 | 1 |
| 8)RIDGE EDGE #8 | 2 | 297.4692 | 26.2208 | 10 ks | N | Y | P | 0.02000 | 1 |