SUMMARY OF PROPOSAL 42119
DR. HERMAN L. MARSHALL
EUREKA SCIENTIFIC, INC.
CA USA 94602
OAKLAND
2452 DELMER ST., SUITE 100

  E-mail: HERMANM@USA1.COM	Tel: (617) 862-1221	Fax: (617) 860-7346
  Medium: 2GB8MM

Subject: AGN                                                         
  Title: COORDINATED OBSERVATIONS OF THE NARROW LINE SEYFERT 1 GALAXY 1H0419-577         


Abstract:
 Narrow line Seyfert 1 galaxies (NLS1s) have become an important class of AGN with
 the discovery that they are more variable and have steeper soft X-ray spectra than
 other AGN (Boller et al., 1995). It is possible that this correlation is an effect
 of geometry or viewing angle but there may be a physical difference between the
 broad- and narrow-lined AGN as might happen if NLS1s have smaller central black hole
 masses. We propose two short observations of the NLS1 1H0419-577 to be coordinated
 with (approved) ROSAT HRI and (to be proposed) EUVE observations in order to obtain
 two single-epoch spectra from 0.1 to 10 keV. This NLS1 was found in both the EUVE
 and HEAO-A all sky surveys; thus both soft and hard X-ray components will be measured in this campaign and monitored for variability.

 Co-Is:
   1  KAREN LEIGHLY       	RIKEN                         JAPAN     
      LEIGHLY@CRAB.RIKEN.GO.JP	0484(62)1111X3228
   2  GREG MADEJSKI       	NASA/GSFC                     USA       
   3  RICK EDELSON        	U. IOWA                       USA       
   4  CHIKO OTANI         	RIKEN                         JAPAN     


Target Name           PRI RA        Dec        Time TC  Off GIS SIS_Cts  Obs
-------------------   --- --------  --------   ---- --  --- --- -------  ---
1H0419-577             0   66.5042  -57.2001    60   Y   N   P  1.40000   2 

REMARKS:  SHOULD BE COORDINATED WITH HRI WHICH HAS NOT YET BEEN SCHEDULED AND EUVE
          WHICH IS TO BE PROPOSED. THE TWO ASCA POINTINGS SHOULD BE SCHEDULED ABOUT
          A WEEK APART WITHIN THE EUVE OBSERVATION WINDOW.
Monitored Oservation:
          Min. Int: 150.000  Max. Int: 1000.000