SUMMARY OF PROPOSAL 41111
MR. SHIN'ICHIRO UNO
INSTITUTE OF SPACE AND ASTRONAUTICAL SCIENCE
KANAGAWA JAPAN 229
SAGAMIHARA
3-1-1 YOSHINODAI

  E-mail: UNO@ASTRO.ISAS.AC.JP	Tel: 0427-51-3911(2622)	Fax: 0427-59-4253
  Medium: 2.5GB8MM

Subject: NORMAL GALAXIES                                             
  Title: M33 --- AN UNUSUAL NUCLEAR SOURCE IN A NEARBY GALAXY                            


Abstract:
 Is the nuclear source of M33 a black hole binary or an AGN? This is a question
 presented by the ASCA observations in PV phase. This question is of importance not
 only for understanding the host galaxy M33 but also for understanding evolution of
 galaxy in general, because recent results of ROSAT indicate similar unual nuclear
 source exist in other galaxies, e.g. NGC 3628. We consider follow-up observations of
 this galaxy can answer the question. We expect to detect time variablity by
 comparing PV and the new observations. The spectral variation is a key observatinal
 feature which characterize a black hole binary.

 Co-Is:
   1  KAZUHISA MITSUDA    	ISAS                          JAPAN     
      MITSUDA@ASTRO.ISAS.AC.JP	0427-51-3911EX(2617)
   2  YOSHIHIRO UEDA      	ISAS                          JAPAN     
   3  TOSHIO MURAKAMI     	ISAS                          JAPAN     
   4  YOSHITAKA SAITOH    	TOKYO UNIV.                   JAPAN     
   5  KYOKO OKADA         	ISAS                          JAPAN     


Target Name           PRI RA        Dec        Time TC  Off GIS SIS_Cts  Obs
-------------------   --- --------  --------   ---- --  --- --- -------  ---
M33                    3   23.4621   30.6600    40   N   Y   P  0.40000   1