Gravitational wave astronomy

Details Gravitational wave astronomy Gravitational wave astronomy

1999-11-09

arxiv.org/abs/gr-qc/9911034v1

Class.Quant.Grav.16:A131-A156,1999

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

29 pages, 2 figures, as submitted for special millenium issue of Classical and Quantum Gravity

Scientific paper

10.1088/0264-9381/16/12A/307

The first decade of the new millenium should see the first direct detections of gravitational waves. This will be a milestone for fundamental physics and it will open the new observational science of gravitational wave astronomy. But gravitational waves already play an important role in the modeling of astrophysical systems. I review here the present state of gravitational radiation theory in relativity and astrophysics, and I then look at the development of detector sensitivity over the next decade, both on the ground (such as LIGO) and in space (LISA). I review the sources of gravitational waves that are likely to play an important role in observations by first- and second-generation interferometers, including the astrophysical information that will come from these observations. The review covers some 10 decades of gravitational wave frequency, from the high-frequency normal modes of neutron stars down to the lowest frequencies observable from space. The discussion of sources includes recent developments regarding binary black holes, spinning neutron stars, and the stochastic background.

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