Star Birth: Process & Gravity Effects

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Discussion Overview

The discussion revolves around the process of star birth, specifically focusing on the initiation mechanisms and the role of gravity in attracting space debris to form stars. It encompasses theoretical aspects of stellar evolution and gravitational dynamics.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification

Main Points Raised

  • Some participants suggest that star birth is initiated by gravity, which draws gas and debris together over time through mutual gravitational attraction.
  • One participant describes the formation of a 'thick' sea of hydrogen and other materials, where matter can precipitate around deformations in the gas solution.
  • There is mention of the necessity of sufficient gravitational energy to initiate fusion reactions for star formation, otherwise leading to larger chunks of space debris.
  • A participant references the Jeans radius or Jeans mass as a critical factor in the collapse of gas clouds, suggesting further research on this topic for clarity.

Areas of Agreement / Disagreement

Participants generally agree that gravity plays a significant role in star formation, but the specifics of the process and the importance of concepts like the Jeans mass remain points of exploration and discussion.

Contextual Notes

The discussion includes references to complex processes such as gravitational attraction and fusion initiation, but lacks detailed definitions and may depend on specific assumptions about stellar evolution.

wolram
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hi,i have two questions i hope you can ansewer.
what is the process that initiates star birth?
how does gravity focus on a single point,that attracts space debris to eventualy form a star?
 
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Originally posted by wolram
hi,i have two questions i hope you can ansewer.
what is the process that initiates star birth?
how does gravity focus on a single point,that attracts space debris to eventualy form a star?
Go to:
http://www.astronomynotes.com/evolutn/s3.htm#A1.2.1

and keep clicking "next section" for a real good basis on stellar evolution.
 
Star birth is caused by gravity...

Gas and other debris mill about for a long time, slowly being drawn together by mutual gravitational attraction.

A 'thick' sea of mainly Hydrogen forms, with pockets of other material.

Like a precipitate matter forms around minor deformations in the 'gas solution'.

Sometimes stars are formed, if there is enough gravitational energy within the matter to kick-start a fusion reaction. Otherwise just more, bigger chunks of space debris.

This matter gets eaten up by the stars that have already formed or else become planets or floating clumps of matter.
 
The reason for the collapse has to due with the Jeans radius, or Jeans mass, do a google for that and it should help out a lot.
 

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