Neutron star collapse can produce GBBs?

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Discussion Overview

The discussion revolves around the potential for neutron star collapse to produce gamma-ray bursts (GRBs) and explores various scenarios related to neutron star behavior, including accretion, instability, and the consequences of such events. The scope includes theoretical considerations and speculative scenarios regarding neutron stars and their interactions.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant suggests that if a neutron star exceeds the Tolman–Oppenheimer–Volkoff limit due to material accumulation, it will collapse into a black hole and questions whether this would produce a gamma-ray burst.
  • Another participant expresses skepticism about the ability to definitively answer the question regarding the origin of gamma-ray bursts, noting that while GRBs are measured, their origins remain poorly understood.
  • A different participant discusses the behavior of neutron stars during ordinary accretion, mentioning that they typically expel most accreted matter due to intense magnetic fields, primarily at the poles, and connects this to the formation of pulsars and the potential for mergers to produce short gamma-ray bursts.
  • One participant poses a hypothetical scenario about the possibility of a neutron star exploding and questions whether such an explosion could eject stable chunks of material that might travel to other star systems and cause effects in our solar system.
  • Another participant asserts that neutron star material cannot be expelled as a condensed matter entity and suggests that any chunk attempting to escape would decompress and explode.

Areas of Agreement / Disagreement

Participants express differing views on the mechanisms and outcomes associated with neutron star behavior, particularly regarding the production of gamma-ray bursts and the feasibility of neutron star explosions. No consensus is reached on these topics.

Contextual Notes

The discussion includes assumptions about neutron star behavior, the nature of gamma-ray bursts, and the conditions under which neutron stars might explode or collapse. These assumptions are not universally accepted and remain unresolved.

magnetar
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If a neutron star accumulate materials from its companion star ,then it's mass exceeded Tolman–Oppenheimer–Volkoff limit, it will collapse into a black hole! My question is ,in this case ,it will produce "gamma-ray burst"?
 
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HI Magnetar,

I believe no one can answer the question you ask. All we know is that we measure gamma ray bursts, but until now, no satisfactory explanation of their origin has been found.

Cheers,
Bobbywhy
 
In the case of ordinary accretion, neutron stars tend to expell most accreted matter. Due to their intense magnetic fields, this occurs mainly at the poles. When the poles of neutron stars lay close enough to our line of sight, it produces a pulsar. Pulsars invariable appear to 'spin down', signifying a slowing of rotation. If a neuton star were rapidly gaining mass, it should tend to rotate faster. In the case of inspiralling binary neutron stars, mergers are thought to account for short gamma ray bursts, consistent with your idea. Formation of a black hole is probably inevitable in these cases. About 5% of neutron stars are observed to have a neutron star companion.
 
Is it possible for a Neutron Star to explode?

Could a scenario exist that would allow a Neutron Star to become unstable and explode with enough force to send chunks and particles away at above the overall escape velocity of the combined mass of the star? If so, could the chunks and particles of the explosion that did so, be stable enough to travel large distances and cause havoc in another star system? And if that is so, what would be the effect of a chunk of a neutron star let's say 200 ft in diameter do when it enters our solar system?
 
Neutron star material cannot be expelled as a condensed matter entity. Were a chunk to attempt to leave the gravity well, it would decompress [explode].
 

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