Abstract The Laser Interferometer Space Antenna (LISA) will be a transformative experiment
for gravitational wave astronomy, and, as such, it will offer unique opportunities to address …

Abstract The Laser Interferometer Space Antenna (LISA) has the potential to reveal wonders
about the fundamental theory of nature at play in the extreme gravity regime, where the …

In this paper, which is of programmatic rather than quantitative nature, we aim to further
delineate and sharpen the future potential of the LISA mission in the area of fundamental …

This review is focused on tests of Einstein's theory of general relativity with gravitational
waves that are detectable by ground-based interferometers and pulsar-timing experiments …

General relativity has passed all solar system experiments and neutron star based tests,
such as binary pulsar observations, with flying colors. A more exotic arena for testing …

We review the expected science performance of the New Gravitational-Wave Observatory
(NGO, aka eLISA), a mission under study by the European Space Agency for launch in the …

We review the tests of general relativity that will become possible with space-based
gravitational-wave detectors operating in the∼ 10− 5− 1 Hz low-frequency band. The …

This document introduces the exciting and fundamentally new science and astronomy that
the European New Gravitational Wave Observatory (NGO) mission (derived from the …

We derive a stationary and axisymmetric black hole solution to quadratic order in the spin
angular momentum. The previously found, linear-in-spin terms modify the odd-parity sector …

Circumambient and galactic-scale environments are intermittently present around black
holes, especially those residing in active galactic nuclei. As supermassive black holes …