SUMMARY OF PROPOSAL 52003

DR. ERIC D. FEIGELSON
EDF@ASTRO.PSU.EDU

PENNSYLVANIA STATE UNIVERSITY
525 DAVEY LABORATORY
UNIVERSITY PARK
PA USA 16802
Tel: 814-865-0162 Fax: 814-863-3399
Medium: 2GB8MM
Subject: STARS

X-RAY EMISSION FROM THE YOUNGEST STARS


ABSTRACT

X-ray emission from protostars has recently been detected by both ROSAT and ASCA. Although such emission is common from the slightly older T Tauri star class (interpreted as enhanced solar type magnetic activity), emission from the much younger and cooler protostellar phase is not well understood. We seek to better understand the nature of this emission which has important implications for star formation regulation and the ionization of circumstellar disks and outflows. Three fields are proposed containing the near-by, well-separated, luminous protostars, L723, RNO 43 and RNO 91. ASCA's unique ability to observe protostars through heavy extinction is necessary for this project.

CO-INVESTIGATORS
CO-I NAME INSTITUTE COUNTRY
LEE CARKNERPENN STATE UNIV.USA
THIERRY MONTMERLECENTRE ETUDES SACLAYFRANCE
KATSUJI KOYAMAUNIV. KYOTOJAPAN

TARGETS

TARGET NAMEPRIRADECTIMETCOFFGISSIS CNTOBS
1)L723
2
289.4712 19.2046 30 ksN
N
P
0.01000
1