SUMMARY OF PROPOSAL 42110
PROFESSOR RICK EDELSON
UNIVERSITY OF IOWA
IOWA USA 52242-1479
IOWA CITY
203 VAN ALLEN HALL

  E-mail: EDELSON@SPACLY.PHYSICS.UIOWA.EDU	Tel: (319)335-1880	Fax: (319)335-1753
  Medium: 4GBDAT

Subject: AGN                                                         
  Title: BROAD BAND X-RAY SPECTRUM OF NARROW LINE SEYFERT 1 AKN 564                      


Abstract:
 Narrow Line Seyfert 1 (NLS1) galaxies lie at the extreme of the Seyfert 1
 pheonomenon, exhibiting rapid variability, distinctive soft X-ray spectral
 complexity and narrow optical/UV emission lines. The reason for this unique behavior
 has not been identified, quite possibly because no NLS1 has yet been observed in the
 hard X-rays. We propose a 50 ks ASCA observation of the bright NLS1 Akn 564, to be
 coordinated with an already approved XTE observation. This will give the only
 0.4--30 keV spectrum of a NLS1, allowing measurement of the iron line and reflection
 component and modeling of the complex soft X-ray spectrum, for comparison with
 normal Seyfert 1s. These data will also allow comparison of hard and soft component variability and compactness.

 Co-Is:
   1  KAREN LEIGHLY       	RIKEN                         JAPAN     
      LEIGHLY@CRAB.RIKEN.GO.JP	81-48-462-1111X3228
   2  RICHARD MUSHOTZKY   	NASA/GSFC                     USA       
   3  HIDEYO KUNIEDA      	NAGOYA UNIVERSITY             JAPAN     


Target Name           PRI RA        Dec        Time TC  Off GIS SIS_Cts  Obs
-------------------   --- --------  --------   ---- --  --- --- -------  ---
AKN 564                0  340.6633   29.7231    50   N   N   P  1.40000   1 

REMARKS:  A 50KS XTE OBSERVATION WILL BE SCHEDULED COORDINATED WITH THE ASCA
          OBSERVATION, SO NO TIME CONSTRAINT IS NECESSARY.