SUMMARY OF PROPOSAL 42145
DR. FABRIZIO FIORE
SMITHSONIAN ASTROPHYSICAL OBSERVATORY
MA USA 02138
CAMBRIDGE
60 GARDEN ST. MS-4

  E-mail: FIORE@CFA.HARVARD.EDU	Tel: 617 495 7442	Fax: 617 495 7356
  Medium: 2GBDAT

Subject: AGN                                                         
  Title: VERY STEEP SOFT X-RAY SPECTRUM QUASARS                                          


Abstract:
 The ROSAT PSPC has found a large spread in spectral indices of low z quasars:
 0.5<alpha_E<3.5. While many "flat" (often hard X-ray selected) quasars have been
 observed above 2 keV, most of the "steep" PSPC quasar has not been, so far, observed
 in the 2-10 keV energy range. This proposal is to observe with ASCA two of the
 brightest quasars known with alpha_PSPC>2 (and small H_beta FWHM and large FeII
 equivalent width) to investigate whether the steep spectrum extends up to 10 keV or
 whether they have a strong spectral flattening above 2 keV. Both possibilities have important consequences for current quasar models.

 Co-Is:
   1  MARTIN ELVIS        	SAO                           USA       
      ELVIS@CFA.HARVARD.EDU	617 495 7442
   2  ANETA SIEMIGINOWSKA 	SAO                           USA       
   3  BELINDA WILKES      	SAO                           USA       
   4  GIORGIO MATT        	CNR/IAS                       ITALY     
   5  LUIGI PIRO          	CNR/IAS                       ITALY     


Target Name           PRI RA        Dec        Time TC  Off GIS SIS_Cts  Obs
-------------------   --- --------  --------   ---- --  --- --- -------  ---
PG1244+026             0  191.6458    2.3689    40   N   N   P  0.18000   1 
          
NAB0205+024            0   31.9575    2.7157    60   N   N   P  0.13000   1