Discussion Overview
The discussion revolves around the structure and properties of neutron star cores, particularly the possibility of an empty obloid-shaped cavity forming due to centrifugal forces in rapidly spinning neutron stars. Participants explore the implications of such a cavity, including what it might contain and the effects of relativistic phenomena.
Discussion Character
- Exploratory
- Debate/contested
- Technical explanation
Main Points Raised
- One participant questions whether centrifugal force could displace core material outward, potentially creating an empty cavity in the center of a millisecond spinning neutron star.
- Another participant argues that while gravity decreases toward the center, pressure from the weight of the material above increases, suggesting that material aligned along the spin axis would still be pulled inward by gravity.
- A hypothesis is presented that the neutron core could consist of quark matter, referencing strange quark stars as a related concept.
- Some participants discuss the dynamics of centrifugal force and gravity, noting that if centrifugal force does not exceed gravity at the surface, it will not do so at the center, implying stability against cavity formation.
- There is mention of a theoretical object known as a ringularity, which could have a cavity and might be of interest in this context.
- Concerns are raised about the stability of a potential blitzar and its vulnerability to collapse due to pressure along the polar axis.
Areas of Agreement / Disagreement
Participants express differing views on the formation of a cavity in neutron star cores, with some arguing against it based on gravitational and centrifugal dynamics, while others propose alternative models involving exotic matter or theoretical constructs. The discussion remains unresolved with multiple competing views present.
Contextual Notes
Participants note the complexity of the forces at play, including the interplay between centrifugal force and gravitational pressure, as well as the implications of relativistic effects and exotic matter in the context of neutron stars.