Speaker
Olaf Baake
(Universidad Diego Portales)
Description
Following Hartle and Thorne, we discuss slowly rotating stars using an expansion of the field equations in angular velocity while having the TOV equations of a non-rotating star as a background model. We use affine-null coordinates, which yield a particularly convenient multipole decoupling of the Einstein equations, allowing for writing down a master equation. Outside the star, the system admits exact solutions that have to be matched with the numerically determined inner solution.
Author
Olaf Baake
(Universidad Diego Portales)