All Questions
2 questions
5
votes
1
answer
757
views
What's the difference between a post-Minkowskian approximation and a post-Newtonian one?
I'm studying the book Gravity by Poisson & Will. Specifically, I'm interested in the post-Newtonian and post-Minkowskian approximations showed in chapters 6-10. The problem I'm having is ...
- 4,737
1
vote
3
answers
952
views
How to get space component of weak field (linearized) metric?
For Minkowski space with a weak gravitational field the metric takes the form
$$
ds^2 = (1+2\phi/c^2)c^2dt^2 -(1-2\phi/c^2)(dx^2+dy^2+dz^2),
$$
where $\phi$ is the Newtonian gravitational potential.
...
- 886