SUMMARY OF PROPOSAL 43006
 FABIO FAVATA
EUROPEAN SPACE AGENCY
 NETH 2200 AG
NOORDWIJK
KEPLERLAAN 1

  E-mail: FABIO.FAVATA@ASTRO.ESTEC.ESA.NL	Tel: +31-71-565 4665	Fax: +31-71-565 4690
  Medium: 2GBDAT

Subject: STARS                                                       
  Title: SIMULTANEOUS ASCA AND EUVE OBSERVATIONS OF 44 BOO                               


Abstract:
 We propose to carry simultaneous observations of the bright contact binary 44 Boo
 with ASCA and with the EUVE satellite. The simultaneous observations, thanks to the
 complementary contraints supplied by the different passbands of the two instruments,
 will allow us to study the differential emission distribution and the metal
 abundance in the corona of a contact binary system, over the complete temperature
 range from hundred thousand to several tens of million degrees. This will allow us
 to address for the first time through simultaneous observations the apparent
 incompatibility between the ASCA and EUVE derived DEM of several active binaries.
 Additionally, the period of the target is short enough and the count rate high enough as to allow phase-resolved spectroscopy.

 Co-Is:
   1  NANCY BRICKHOUSE    	CFA                           USA       
      (No Co-I contact data)
   2  ANDREA DUPREE       	CFA                           USA       
   3  ANTONIO MAGGIO      	OSS. AST. DI PALERMO          ITALY     


Target Name           PRI RA        Dec        Time TC  Off GIS SIS_Cts  Obs
-------------------   --- --------  --------   ---- --  --- --- -------  ---
44 BOO                 2  225.9563   47.6539    70   Y   N   P  1.00000   1 

REMARKS:  NOTE THAT IN ADDITION TO THE JOINT ASCA-EUVE VISIBILITY PERIOD INDICATED
          IN THE OBSERVATIONS CONSTRAINTS FORM, THERE A FURTHER JOINT VISIBILITY
          PERIOD FROM MAY 8 TO JULY 6, 1996.
Co-Ordinated Ob:
                Start: Jan 9, 1996 at 00 UT
                 Stop: Mar 7, 1996 at 00 UT