SUMMARY OF PROPOSAL 71114
ISAS
3-1-1, YOSHINODAI
SAGAMIHARA
KANAGAWA JAPAN 229-8510
Tel: 0427-59-8154 Fax: 0427-59-8455
Medium: 2.5GB8MM
Subject: AGN
OBSERVATIONS OF HIGH Z QUASARS
ABSTRACT
The observation of high z quasars are essential for the study of evolution of AGNs and its connection to cosmic X-ray backgroud. So far, seven high z (z>3) quasars were observed with ASCA. The correlation between z-value and spectral index showed the trend of spectral hardening with incresing z-value. The flux of radio loud quasars was higher than that of radio quiet quasars in average. The X-ray spectra were flatter than those in optical and UV bands. These properties suggests blazar type activity and structure. By this reason, we propose organized observation of X-rays and space VLBI to study connection of X-ray emission to sub-mas radio morphology.
CO-INVESTIGATORS
| CO-I NAME | INSTITUTE | COUNTRY |
|---|
| TADAYUKI TAKAHASHI | ISAS | JAPAN |
| LEONID GURVITS | JOIN INST. VLBI | NETH |
| BISWAJIT PAUL | ISAS | JAPAN |
| HISASHI HIRABAYASHI | ISAS | JAPAN |
| RIKAKO OKAYASU | ISAS | JAPAN |
TARGETS
| TARGET NAME | PRI | RA | DEC | TIME | TC | OFF | GIS | SIS CNT | OBS |
|---|
| 1)QSO 0642+449 | C | 101.6333 | 44.8547 | 40 ks | N | Y | P | 0.05000 | 1 |