Gravity & Pressure: How Moving Particles Generate More Gravity?

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SUMMARY

The discussion centers on the relationship between high pressure in an ideal gas and its effect on gravity, specifically through the lens of the stress-energy tensor. It establishes that high pressure results from moving particles, which can include massive entities like stars in a galaxy. The conversation explores how the relativistic mass of these moving particles contributes to increased gravitational effects, while also acknowledging the complexity introduced by negative pressure, which can lead to repulsive gravity. This nuanced understanding highlights the interplay between mass, energy, and pressure as sources of gravitational influence.

PREREQUISITES
  • Understanding of the stress-energy tensor in general relativity
  • Knowledge of relativistic mass and energy concepts
  • Familiarity with ideal gas behavior under varying pressure conditions
  • Basic principles of gravitational physics
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  • Research the implications of the stress-energy tensor in general relativity
  • Explore the concept of relativistic mass and its effects on gravitational fields
  • Investigate the behavior of ideal gases under extreme conditions
  • Study the role of negative pressure in cosmology and its effects on gravity
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Physicists, astrophysicists, and students of general relativity interested in the interactions between pressure, mass, and gravity in various contexts.

Dmitry67
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So, ideal gas under a high pressure produces more gravity because of the pressure components in the stress-energy tensor.

However, high pressure of an ideal gas can be explained as just moving particles. These particles can be quite big and heavy - for example, stars in a galaxy.

I wonder how these views might be consistent. Why moving particles generate more gravity? just because their relativistic mass is bigger?
 
Physics news on Phys.org
The stress energy tensor reflects mass,energy and pressure as sources of gravity...and negative pressure as a cause of repulsive gravity...so it's not as simple as the relativistic energy of moving particles...
 

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