Can Jupiter Become a Stable Star?

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Discussion Overview

The discussion centers around the hypothetical scenario of whether Jupiter could become a stable star, particularly through artificial compression and the initiation of nuclear fusion. Participants explore the implications of Jupiter's mass and structure in relation to stellar formation and fusion processes.

Discussion Character

  • Exploratory
  • Debate/contested
  • Technical explanation

Main Points Raised

  • Some participants propose that even if Jupiter were artificially compressed, it may not reach the gravity-radiation pressure equilibrium necessary for stable fusion due to its insufficient mass.
  • One participant mentions that Jupiter would likely extinguish any artificially initiated fusion once the compression is removed, suggesting a transient rather than stable state.
  • Another participant notes that sub-stellar masses like brown dwarfs require significantly more mass than Jupiter to initiate fusion, questioning the feasibility of the scenario presented.
  • There is a suggestion that fusion processes would increase Jupiter's core pressure, potentially leading to a larger and less dense state, complicating the idea of achieving stable fusion without additional mechanisms.

Areas of Agreement / Disagreement

Participants express differing views on the possibility of Jupiter becoming a stable star, with no consensus reached on the feasibility of artificial compression or the conditions necessary for sustained fusion.

Contextual Notes

Limitations include the assumptions regarding artificial compression methods, the nature of fusion processes, and the definitions of stability in the context of stellar formation.

Bavid
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With its current mass, can Jupiter become a stable star? Suppose Jupiter was artificially compressed to only a fraction of its present size (a hypothetical situation occurring in at least one work of science fiction), would the gravity-radiation pressure equilibrium be reached at all? It appears to me that even if it were possible to forcibly initiate nuclear fusion at the core, the mass of the planet is not high enough to form a stable star.
 
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Bavid said:
With its current mass, can Jupiter become a stable star? Suppose Jupiter was artificially compressed to only a fraction of its present size (a hypothetical situation occurring in at least one work of science fiction), would the gravity-radiation pressure equilibrium be reached at all? It appears to me that even if it were possible to forcibly initiate nuclear fusion at the core, the mass of the planet is not high enough to form a stable star.

I read once long ago that Jupiter had almost enough mass to be a star.

If it were artificially ignited it seems to me that as soon as the artificial pressure were removed it would go out. unless there is something I don't know about.
 
Sub stellar masses like Brown dwarfs require over seventy times the mass of Jupiter to begin fusion in their core. I'm not sure if there is any validity in the science fiction ideas, I can't see how you could stabily compress a planet without the outward pressure pushing it back out.
 
Fusion processes would heat the core of Jupiter and therefore increase the pressure - and make Jupiter larger and less dense, compared to the current state.
Unless you invent something fancy which could catalyze fusion or feed a large amount of deuterium+tritium (maybe that could burn, until the tritium is decayed) into the core or whatever, you won't get stable fusion there.
 

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