Timing Effects of Gravitational Waves from Localized Sources

Details Timing Effects of Gravitational Waves from Localized Sources Timing Effects of Gravitational Waves from Localized Sources

1999-03-18

arxiv.org/abs/gr-qc/9903070v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

6 pages, 2 figures, a talk given at the XXXIVth Rencontres de Moriond on "Gravitational Waves and Experimental Gravity", Les A

Scientific paper

Localized astronomical sources like a double stellar system, rotating neutron star, or a massive black hole at the center of the Milky Way emit periodic gravitational waves. For a long time only a far-zone contribution of gravitational fields of the localized sources (plane-wave-front approximation) were a matter of theoretical analysis. We demonstrate how this analysis can be extended to take into account near-zone and intermediate-zone contributions as well. The formalism is used to calculate gravitational-wave corrections to the Shapiro time delay in binary pulsars and low-frequency (LF) pulsar timing noise produced by an ensemble of double stars in our galaxy.

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