June 24, 1999 Pratt Conference Room, Perkin G-04, 12:30 pm
ROSAT PSPC observations of T Tauri stars in MBM12
Thomas J. Hearty, Max Plank Institute/Garching
Abstract
We present ROSAT PSPC pointed and ROSAT All-Sky Survey observations
and the results of low and high spectral resolution optical follow-up
observations of the T Tauri stars and X-ray selected T Tauri star
candidates in the region of the nearby (~65 pc) dark cloud MBM12
(L1453-L1454, L1457, L1458). Using the updated census of 8 T Tauri
stars we estimate a star-formation efficiency of ~2-24% for this
~30-200 M_sun cloud. In addition, we present Hipparcos satellite
measurements that show the accepted distance to the cloud is not as
well constrained as previously thought.