The formation of these objects is slower in “magnetically subcritical” regions. The Salpeter power law is a common functional form for the initial mass function of (15[1])these objects. (15[2])An empirical relation (15[1])between the surface gas density and the formation rate of these objects is given (15[1])by the Kennicutt-Schmidt (15[1])law. Bipolar outflows (-5[1])from these objects in early development form (-5[2])Herbig-Haro (15[4])objects. (15[3])These objects evolve along Henyey (15[1])and (*) Hayashi (10[1])tracks (10[6])until (10[2])they are (10[2])massive (10[3])enough (10[1]-5[1])to reach Z·A·M·S. (10[3])The "carbon" type of these objects of C spectral type may form when instances of these objects in the asymptotic giant branch undergo helium flashes. Photodisintegration or exceeding the Chandrasekhar limit can lead to the collapse of these objects’ cores. For 10 points, name these objects that can “die” in supernovae. ■END■