Re: how do stars form?
- From: John Poe <edelburo@xxxxxxx>
- Date: Sun, 09 Dec 2007 22:43:21 -0600
Brian Tung wrote:
Buffalo Gump wrote:
What is it that allows stars to form form some critical density
from a random conglomeration of hydrogen. How does hydrogen form
what orginally must be some kind of nucleation of matter into a point
mass then continue to grow until it ignites. How can gravity alone account
for star formation?
It can't, generally speaking.
It can, generally speaking.
Apparently, there is usually some other
kind of trigger event. For instance, the shock wave from a supernova
explosion might compress otherwise quiescent gas and dust beyond the
critical density.
It should be pointed out that this critical density need not be very
great. It would probably be a pretty hard vacuum by Earth laboratory
standards. But such a collection of gas and dust would cover a huge
volume, and would be enough to self-gravitate.
--
Brian Tung <brian@xxxxxxx>
The Astronomy Corner at http://astro.isi.edu/
Unofficial C5+ Home Page at http://astro.isi.edu/c5plus/
The PleiadAtlas Home Page at http://astro.isi.edu/pleiadatlas/
My Own Personal FAQ (SAA) at http://astro.isi.edu/reference/faq.html
.
- Follow-Ups:
- Re: how do stars form?
- From: Chris L Peterson
- Re: how do stars form?
- References:
- how do stars form?
- From: Buffalo Gump
- Re: how do stars form?
- From: Brian Tung
- how do stars form?
- Prev by Date: Re: Brown Dwarf LSR0602+3910 in Auriga
- Next by Date: Re: how do stars form?
- Previous by thread: Re: how do stars form?
- Next by thread: Re: how do stars form?
- Index(es):
Relevant Pages
|
