All Questions
Tagged with protostar star-formation
4 questions
12
votes
1
answer
1k
views
Why does a hot cloud need more mass to collapse?
I was wondering why does a hot cloud need more mass to collapse than a cold cloud to form a protostar? Is it because there's a higher thermal pressure inside the hotter cloud than it is in a colder ...
- 477
1
vote
0
answers
40
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Supernova impact on Protostar formation
What would be the impact on the formation of a new star (protostar) when a nearby star (within 10 LY) goes supernova? Will the force of the explosion (once it arrives in the Molecular Cloud where the ...
- 11
2
votes
0
answers
144
views
Freefall timescale for a Jeans-unstable hydrogen cloud of mass M
I'm working on a project (personal, not academic) that involves calculating the collapse timescales for protostars which will end up becoming stars of varying given masses. I'm treating the pre-main ...
- 131
3
votes
2
answers
627
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How can pre-main sequence stars radiate more energy than main-sequence stars?
How can a pre-main sequence star radiate more energy by gravitational contraction than a main-sequence star can by hydrogen fusion?
- 133