SUMMARY OF PROPOSAL 41067
DR. HAJIME INOUE
INSTITUTE OF SPACE AND ASTRONAUTICAL SCIENCE
KANAGAWA JAPAN 229
SAGAMIHARA
3-1-1 YOSHINODAI

  E-mail: INOUE@ASTRO.ISAS.AC.JP	Tel: 0427-51-3911(2615)	Fax: 0427-59-4253
  Medium: 2.5GB8MM

Subject: SUPERNOVA REMNANTS AND GALACTIC DIFFUSE EMISSION            
  Title: OBSERVATIONS OF SN1993J                                                         


Abstract:
 SN 1993J is one of five recent supernova explosions (SNe) detected in X-rays. It is
 observationally unprecedented, in that it is the only SNe detected in the radio and
 in X-rays within a week of the explosion, and whose X-ray lightcurve and spectral
 evolution have been carefully measured for over one year. The observations we
 propose extend the lightcurve (luminosity, spectral hardness, and temperature) into
 years. This first-of-a-kind opportunity, to follow the evolution in X-rays of the
 shocked circumstellar matter during the first few years after the explosion of a red supergiant, should not be missed.

 Co-Is:
   1  WALTER H.G. LEWIN   	MIT                           USA       
      UNO@ASTRO.ISAS.AC.JP	0427-51-3911EX(2622)
   2  YOSHIKI KOHMURA     	RIKEN                         JAPAN     
   3  SHIN'ICHIRO UNO     	ISAS                          JAPAN     
   4  YASUO TANAKA        	MPE                           JAPAN     
   5  MASAYUKI ITOH       	KOBE. UNIV.                   JAPAN     
   6  KAZUO MAKISHIMA     	TOKYO. UNIV.                  JAPAN     


Target Name           PRI RA        Dec        Time TC  Off GIS SIS_Cts  Obs
-------------------   --- --------  --------   ---- --  --- --- -------  ---
SN1993J                1  149.0000   69.0000    100   N   Y   P  0.02000   2 

REMARKS:           50 KS DURING MARCH 12 - MAY 31 1996 \ 50 KS DURING SEPT.14 - DEC 3 1996