SUMMARY OF PROPOSAL 42087
DR. ROBERT PETRE
GSFC
MD USA 20771
GREENBELT
CODE 666

  E-mail: PETRE@LHEAVX.GSFC.NASA.GOV	Tel: (301) 286-3844	Fax: (301) 286-1684
  Medium: 4GBDAT

Subject: SUPERNOVA REMNANTS AND GALACTIC DIFFUSE EMISSION            
  Title: RESOLVING NEW MYSTERIES IN SN1006                                               


Abstract:
 ASCA PV observations of SN1006 have resolved the mystery of the origin of its
 featureless X-ray spectrum. The remnant interior is filled with line-emitting
 thermal radiation arising from shock-heated material. The power law component that
 dominates the integrated 2-20 keV spectrum arises only along 2 segments of the rim.
 The PV data showed conclusively that the power law arises as synchrotron emission
 from electrons accelerated within the shock region to up to 200 TeV. We propose new
 SIS pointings to more carefully study both components. Our goals include completion
 of the SIS coverage of the remnant, measuring spatial variations within the thermal
 plasma and non-thermal component, and understanding the apparent abundance anomalies present in the PV data.

 Co-Is:
   1  ERIC GOTTHELF       	GSFC/USRA                     USA       
      EVG@VENUS.GSFC.NASA.GOV	(301) 286-1587
   2  JONATHAN KEOHANE    	GSFC/U. MINN.                 USA       
   3  UNA HWANG           	GSFC/NRC                      USA       
   4  STEVE HOLT          	GSFC                          USA       
   5  STEVE REYNOLDS      	NCSU                          USA       


Target Name           PRI RA        Dec        Time TC  Off GIS SIS_Cts  Obs
-------------------   --- --------  --------   ---- --  --- --- -------  ---
SN1006-SW              0  225.5800  -42.1120    50   N   N   P  3.50000   1 
          
SN1006-SE              0  225.9600  -42.0750    25   N   N   P  2.00000   1