SUMMARY OF PROPOSAL 42009
DR. JEREMY JOHN DRAKE
SMITHSONIAN ASTROPHYSICAL OBSERVATORY
MA USA 02140
CAMBRIDGE
60 GARDEN STREET

  E-mail: JDRAKE@CFA.HARVARD.EDU	Tel: 	Fax: 
  Medium: 4GBDAT

Subject: STARS                                                       
  Title: PROBING THE RS CVN METAL DEFICIENCY MYSTERY                                     


Abstract:
 ASCA and EUVE coronal spectra and photospheric studies of RS CVn's and Algols
 suggest they are metal-poor relative to the Sun by factors of ~2-10. This does not
 fit with their ages of ~2-3 Gyr or less. Unlike the RS CVn's and Algol's observed by
 ASCA to-date, sig Gem and lam And - the two brightest long period RS CVn's in the
 X-ray sky - do not have composite spectra. ASCA observations of these stars will
 reveal unambiguously if their coronae have the same metal abundances as their
 photospheres, and will pin down the origin of the anomalously strong continua seen
 in their EUVE spectra. ASCA spectra will also provide the first coronal comparison
 between synchronized (sig Gem) and asynchronous (lam And) RS CVn's. No "classical"
 long period RS CVn's have been observed by ASCA to-date.

 Co-Is:
   1  STEVE DRAKE         	NASA GSFC                     USA       
      (No Co-I contact data)
   2  ROLF MEWE           	SRON, UTRECHT                 NETH      
   3  KAREL SCHRIJVER     	LOCKHEED, PALO ALTO           USA       
   4  JELLE KAASTRA       	SRON, LEIDEN                  NETH      


Target Name           PRI RA        Dec        Time TC  Off GIS SIS_Cts  Obs
-------------------   --- --------  --------   ---- --  --- --- -------  ---
SIGMA GEM              0  115.8267   28.8867    30   N   N   P  5.00000   1 
          
LAMBDA AND             0  354.3833   46.4639    30   N   N   P  5.00000   1