On black holes and relativity.

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SUMMARY

The discussion centers on the relativistic effects of mass in a hypothetical scenario involving a particle and a neutron star. When the particle approaches the speed of light, it experiences an increase in relativistic mass, leading to the conclusion that, from the particle's reference frame, the neutron star could appear to collapse into a black hole. However, from the neutron star's reference frame, it remains below the threshold mass for black hole formation. This highlights the importance of reference frames in understanding relativistic physics.

PREREQUISITES
  • Understanding of special relativity concepts
  • Familiarity with relativistic mass and its implications
  • Knowledge of neutron star characteristics and black hole formation criteria
  • Basic grasp of reference frames in physics
NEXT STEPS
  • Study the principles of special relativity in detail
  • Research the criteria for black hole formation from neutron stars
  • Explore the concept of relativistic mass and its effects on objects in motion
  • Examine the role of reference frames in relativistic physics
USEFUL FOR

Students of physics, astrophysicists, and anyone interested in the implications of relativity on cosmic phenomena.

James Leighe
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Ok, starting with a 'test' universe with only two objects, a single particle and a neutron star just under the mass required to collapse further into a black hole.

If the particle was set in motion near the speed of light, in it's reference frame the neutron star would gain (significant) relativistic mass correct?

So, in the particles reference frame, the star would collapse into a black hole... But in the stars reference frame it would still not be massive enough to collapse right?

I obviously missed something important here, if someone can just correct me that would be nice.
 
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