Stellar Nebulae and angular momentum

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Discussion Overview

The discussion revolves around the origins of angular momentum in protostars, specifically questioning how they inherit angular momentum from the surrounding nebulae. The scope includes theoretical considerations of gravitational collapse and the influence of external factors on nebular dynamics.

Discussion Character

  • Exploratory, Conceptual clarification, Debate/contested

Main Points Raised

  • One participant questions why protostars inherit angular momentum from their surrounding nebulae, suggesting it may be a consequence of gravitational collapse.
  • Another participant asserts that in a collapsing gas cloud, it is nearly impossible for there not to be net angular momentum during or after the collapse.
  • Some participants propose that the angular momentum must originate from external influences, indicating a potential link between all nebulae.
  • A later reply seeks justification for the claim regarding external influences on nebulae.

Areas of Agreement / Disagreement

Participants express differing views on the sources of angular momentum in protostars, with some suggesting gravitational collapse alone while others emphasize external influences. The discussion remains unresolved.

Contextual Notes

There are limitations regarding the assumptions made about the nature of nebulae and their interactions, as well as the definitions of angular momentum in this context. The discussion does not clarify the mathematical or physical mechanisms involved.

mateomy
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Maybe this is a simple question but, all the stuff I've been reading so far keeps talking about protostars and their angular momentum being a consequence of the surrounding nebula. Why do they inherit that in the first place? Is is just a consequence of the gravitational collapse?
 
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In a collapsing gas cloud it is practically impossible for it not to have net angular momentum during/after the collapse.
 
It has to be due to an outside influance, so all nebule must be linked in some way.
 
Martinaston said:
It has to be due to an outside influance, so all nebule must be linked in some way.

What is your justification for this?
 

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