A molecular cloud core has a density of 106 particles / cm3, a temperature of 25 K, and a total mass in the core of 20 M?.
(a) What is the Jeans Mass (in solar masses) required for collapse of this cloud fragment?
(b) Will this molecular cloud core be able to collapse? Why or why not?
(c) If it does start the collapse process, how long will it take for the cloud core to completely collapse, assuming the initial density is the same everywhere in the cloud.