Measuring Star Radii with General Relativity

[Natchanon]

Hi, I'm wondering if it is possible to measure radii of stars using general relativity, given its explanation of gravity as curvature of space.

Thank you

 

[Vanadium 50]

How would you do this?

 

[weirdoguy]

given its explanation of gravity as curvature of space.

Curvature of spacetime, not space.

 

[Ibix]

Hi, I'm wondering if it is possible to measure radii of stars using general relativity, given its explanation of gravity as curvature of space.

Are you asking if stars have a well-defined radius in GR? Yes, although you will get different answers depending on how you define radius.

As weirdoguy notes, it's curvature of spacetime, not space. You can't explain gravity just through curvature of space.