SUMMARY OF PROPOSAL 42090
DR. PATRICK OLSON SLANE
SMITHSONIAN ASTROPHYSICAL OBSERVATORY
MA USA 02138
CAMBRIDGE
60 GARDEN STREET

  E-mail: SLANE@CFA.HARVARD.EDU	Tel: (617) 495-7256	Fax: (617) 495-7356
  Medium: 4GBDAT

Subject: SUPERNOVA REMNANTS AND GALACTIC DIFFUSE EMISSION            
  Title: AN X-RAY STUDY OF THE NEWLY IDENTIFIED SUPERNOVA REMNANT G299.2-2.9             


Abstract:
 We propose a 60 ks ASCA observation of G299.2-2.9, first discovered as an extended
 x-ray source in the Einstein Slew Survey, and recently identified as a supernova
 remnant in the ROSAT All-Sky Survey. The x-ray characteristics appear to imply a
 very young and somewhat underluminous remnant, perhaps displaying a centrally bright
 morphology. Our proposed observation will definitively determine if the emission is
 characteristic of a young ejecta-dominated remnant, or a moderate age remnant whose distance has been underestimated.

 Co-Is:
   1  DR. JOHN P. HUGHES  	SAO                           USA       
      (No Co-I contact data)
   2  DR. OLAF VANCURA    	SAO                           USA       


Target Name           PRI RA        Dec        Time TC  Off GIS SIS_Cts  Obs
-------------------   --- --------  --------   ---- --  --- --- -------  ---
G299.2-2.9             0  183.7983  -65.5011    30   N   N   P  1.50000   1 

REMARKS:           COMPLIMENTARY CHIPS WITH TARGET CENTERED ON CCD.