scholarly journals Gravitational radiation and the binary pulsar

Nature ◽  
1982 ◽  
Vol 297 (5865) ◽  
pp. 357-358 ◽  
Author(s):  
Virginia Trimble
Keyword(s):  
Gravitational Radiation ◽  
Binary Pulsar

Approximation methods in gravitational-radiation theory

1986 ◽  
Vol 64 (2) ◽  
pp. 140-145 ◽  
Author(s):  
Clifford M. Will
Keyword(s):  
Gravitational Radiation ◽  
Normal Modes ◽  
Slow Motion ◽  
Radiation Reaction ◽  
Weak Field ◽  
Approximation Methods ◽  
Binary Pulsar ◽  
Radiation Theory ◽  
Recent Developments ◽  
Reaction Forces

The observation of gravitational-radiation damping in the binary pulsar PSR 1913 + 16 and the ongoing experimental search for gravitational waves of extraterrestrial origin have made the theory of gravitational radiation an active branch of classical general relativity. In calculations of gravitational radiation, approximation methods play a crucial role. We summarize recent developments in two areas in which approximations are important: (a) the quadrupole approximation, which determines the energy flux and the radiation reaction forces in weak-field, slow-motion, source-within-the-near-zone systems such as the binary pulsar; and (b) the normal modes of oscillation of black holes, where the Wentzel–Kramers–Brillouin approximation gives accurate estimates of the complex frequencies of the modes.

scholarly journals Radio astronomy in the future: impact on relativity

2009 ◽  
Vol 5 (S261) ◽  
pp. 366-376 ◽  
Author(s):  
Michael Kramer
Keyword(s):  
Cosmic Microwave Background ◽  
Radio Astronomy ◽  
Gravitational Radiation ◽  
Decisive Role ◽  
Microwave Background ◽  
Binary Pulsar ◽  
The Future ◽  
The Impact ◽  
The Revolution

AbstractRadio astronomy has played an important part in the study of relativity. Famous examples include the discovery and exploitation of pulsars for precise binary pulsar tests, the proof of the existence of gravitational radiation and the discovery of the Cosmic Microwave background. In the future, radio astronomy will continue to play a decisive role, assisted by new and upcoming instruments like LOFAR and the SKA. In this review, I will present the revolution that is ongoing in radio astronomical techniques and outline the impact expected on the studies of relativity.

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