Gravitational Radiation at Infinity with Non-Negative Cosmological Constant
Gravitational Radiation at Infinity with Non-Negative Cosmological Constant
The existence of gravitational radiation arriving at null infinity J+, i.e., escaping from the physical system, is addressed in the presence of a non-negative cosmological constant Λ≥0. The case with vanishing Λ is well understood and relies on the properties of the News tensor field (or the News function) defined …