SUMMARY OF PROPOSAL 43032
DR ALDO TREVES
INTERNATIONAL SCHOOL FOR ADVANCED STUDIES (SISSA/ISAS)
 ITALY I-34014
TRIESTE
VIA BEIRUT 2 - 4

  E-mail: TREVES@SISSA.IT	Tel: 39 40 3787474	Fax: 39 40 3787528
  Medium: 2GB8MM

Subject: AGN                                                         
  Title: OBSERVATIONS OF THREE X-RAY BRIGHT OPTICALLY-SELECTED BL LAC OBJECTS            


Abstract:
 Comparison of the RASS with the (PG) survey has allowed the identification of 3 new
 BL Lacs, previously classified as white dwarfs, bringing to 6 the number of known BL
 Lacs in the complete optically-selected PG sample. All six objects are bright in the
 soft X-ray band ($\sim 10^{-11} erg/cm^2/sec$) but 2-10 keV data are lacking. We
 propose to observe with ASCA the two for which only RASS data are available (PG
 1437+398, PG 1246+586), and PG 1424+240 for which the ROSAT data showed significan

 Co-Is:
   1  RITA SAMBRUNA       	NASA/GSFC                     USA       
      SAMBRUNA@ATTILLA.GSFC.NASA.GOV	(301) 286-1042
   2  LAURA MARASCHI      	BRERA OBS., MILAN             ITALY     
   3  MEGAN CLAUDIA URRY  	STSCI                         USA       
   4  GIOVANNI FOSSATI    	SISSA/ISAS                    ITALY     
   5  RENATO FALOMO       	PADOVA OBS.                   ITALY     


Target Name           PRI RA        Dec        Time TC  Off GIS SIS_Cts  Obs
-------------------   --- --------  --------   ---- --  --- --- -------  ---
PG 1437+398            3  219.8071   39.5478    20   N   Y   P  0.82000   1