SUMMARY OF PROPOSAL 42010
DR. ERIC D. FEIGELSON
PENNSYLVANIA STATE UNIVERSITY
PA USA 16802
UNIVERSITY PARK
525 DAVEY LABORATORY

  E-mail: EDF@ASTRO.PSU.EDU	Tel: 814-865-0162	Fax: 814-863-3399
  Medium: 2GB8MM

Subject: STARS                                                       
  Title: X-RAY EMISSION AND EARLY STELLAR EVOLUTION                                      


Abstract:
 Recent ROSAT and ASCA observations of molecular clouds have shown that X-rays are
 produced during the earliest phases of stellar evolution. Whereas X-ray emission
 from T Tauri stars is well-explained by solar-type magnetic activity, the high
 energy (1-10 keV) radiation from cool protostars is remarkable and enigmatic. We
 seek insight into the onset and evolution of protostellar X-ray emission, with
 targets ranging from the youngest Class 0 stars to older Class I/II stars. We select
 four fields with containing nearby, well-separated and luminous protostars. This
 program requires ASCA's unique capability to image X-rays through heavy extinction.

 Co-Is:
   1  THIERRY MONTMERLE   	CENTRE ETUDES SACLAY          FRANCE    
      MONTMERLE@SAPVXG.SACLAY.CEA.FR	33-1-69.08.57.22
   2  PHILIPPE ANDRE      	CENTRE ETUDES SACLAY          FRANCE    
   3  KATSUJI KOYAMA      	UNIV. KYOTO                   JAPAN     


Target Name           PRI RA        Dec        Time TC  Off GIS SIS_Cts  Obs
-------------------   --- --------  --------   ---- --  --- --- -------  ---
          
BARNARD 5 IRS 1        0   56.9208   32.8631    30   N   N   P  0.01000   1 
          
L1448 N+C              0   51.4067   30.7444    30   N   N   P  0.01000   1