SUMMARY OF PROPOSAL 42148 DR IAN MICHAEL GEORGE GODDARD SPACE FLIGHT CENTER MD USA 20771 GREENBELT GREENBELT ROAD E-mail: LHEAVX::GEORGE Tel: 301-286-6094 Fax: 301-286-1684 Medium: 4GBDAT Subject: AGN Title: X-RAY OBSERVATION OF OPTICALLY-SELECTED QUASARS Abstract: We propose to use ASCA to determine the hard X-ray properties of an optically-selected sample of quasars. The target sources are well studied in the radio, optical, UV and soft X-ray regimes, but to date, little information exists on their hard X-ray properties. Most AGN have been chosen for observation by ASCA based on their known peculiarities. We propose to observe 6 optically selected quasars which, when combined with previous ASCA observations, will give a small, but complete sample of quasars for the archives. However, a number of fundamental questions concerning the continua of the targets can be addressed by this proposal alone. Co-Is: 1 JANE TURNER NASA/GSFC/USRA USA LHEAVX::TURNER 301-286-5190 2 FABRIZIO FIORE CFA USA 3 ARI LAOR CALTECH USA 4 RICHARD MUSHOTZKY NASA/GSFC USA 5 KIRPAL NANDRA NASA/GSFC/NRC USA 6 HAGAI NETZER TEL AVIV UNIV. ISRAEL 7 TADAYUKI TAKAHASHI ISAS JAPAN 8 TAHIR YAQOOB NASA/GSFC/USRA USA Target Name PRI RA Dec Time TC Off GIS SIS_Cts Obs ------------------- --- -------- -------- ---- -- --- --- ------- --- PG1425+267 0 216.9000 26.5400 40 N Y P 0.01000 1 PG1216+069 0 184.8292 6.6400 20 N Y P 0.11000 1