The Structures of Star Formation: Small and Large Scales

Leslie Looney
Max-Planck-Institute for Space Physics

I will present an overview of the evolutionary morphology in the dust
structures around young stellar objects, both the youngest sources, Class
0, (envelope dominated) and the older sources, T Tauri stars, (disk
dominated).  I will discuss my sub-arcsecond survey using the
Berkeley-Illinois-Maryland Association (BIMA) millimeter array. By
building the longest baselines in the world at millimeter wavelengths, I
have been able to survey 24 YSOs, providing the first self-consistent
study of circumstellar dust structures from 60" to 0.5", and perform
general modeling of circumstellar disks and envelopes.  The SMA will be in
a unique position to inject crucial data into this field.  Finally, I will
talk about my new far-infrared spectroscopy project (FIFI LS) on-board
SOFIA, and its scientific implications for galactic and extra-galactic
star forming regions