SUMMARY OF PROPOSAL 41105 RYUICHI FUJIMOTO INSTITUTE OF SPACE AND ASTRONAUTICAL SCIENCE KANAGAWA JAPAN 229 SAGAMIHARA 3-1-1 YOSHINODAI E-mail: FUJIMOTO@ASTRO.ISAS.AC.JP Tel: 0427-51-3911(2619) Fax: 0427-59-4253 Medium: 2.5GB8MM Subject: NORMAL GALAXIES Title: ASCA OBSERVATION OF WARM ULTRALUMINOUS INFRARED GALAXIES Abstract: Warm ultraluminous infrared galaxies have L_FIR >10E12Lo and rather warm infrared spectra (25-60micron). Their number density in the local universe is comparable with that of cold ultraluminous galaxies and of quasars, so there must be an evolutional connection between them and the warm ones are considered to be in the intermediate states. We propose the observations of two warm ultraluminous galaxies in order to determine the quantity of the dust surrounding the central nucleus and to reveal the connection between ultraluminous galaxies ane quasars. Co-Is: 1 TSUNEO KII ISAS JAPAN KII@ASTRO.ISAS.AC.JP 0427-51-3911(2624) 2 YASUSHI OGASAKA ISAS JAPAN 3 TAKAO NAKAGAWA ISAS JAPAN Target Name PRI RA Dec Time TC Off GIS SIS_Cts Obs ------------------- --- -------- -------- ---- -- --- --- ------- --- IRAS08572+3915 2 135.1058 39.0650 40 N Y P 0.10000 1 IRAS07598+6508 2 121.1271 64.9980 40 N Y P 0.10000 1