2
How does
mass affect collapse?
•More
massive protostars have stronger gravity
•Collapse
speed will be much faster
•Fast
collapse and short lifetime means massive stars reach end of lifetime while low mass stars in cloud are just forming
–Supernova
shocks may come from
earlier generation of stars
•Sequential
Star Formation
–Energy
from supernova and other effects eventually disrupts cloud – prevents further collapse.
From our text: Horizons, by Sees