Figure 7

Figure 7

The frequency distribution of spectral types observed in 5 young star forming regions. Among low mass stars with ages t < 3 Myr, spectral types translate almost directly into mass (since PMS evolutionary tracks are nearly vertical in the L, Te plan). Consequently, to the extent that the observed stellar populations in all these clouds are complete, there appears to be a significant difference in the most probable mass formed: ~0.5 Msolar in Ophiuchus and 0.2 Msolar on the Orion Nebula cluster (Hillenbrand, 1997). Geminis ability to probe a large number of EMBEDDED clusters out to 2 kpc should enable our gathering a statistical sample robust enough to enable relating initial/environmental conditions to emergent stellar mass functions.