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arXiv · 1202.6213

Radial infall of two compact objects: 2.5PN linear momentum flux and associated recoil

Chandra Kant Mishra
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Abstract

The loss rate of linear momentum from a binary system composed of compact objects (radially falling towards each other under mutual gravitational influence) has been investigated using the multipolar post-Minkowskian approach. The 2.5PN accurate analytical formula for the linear momentum flux is provided, in terms of the separation of the two objects, in harmonic coordinates, both for a finite and infinite initial separation. The 2.5PN formulas for the linear momentum flux are finally used to estimate the recoil velocity accumulated during a premerger phase of the binary evolution.

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Chandra Kant Mishra. 2012-02-28. Radial infall of two compact objects: 2.5PN linear momentum flux and associated recoil. https://doi.org/10.1103/physrevd.85.104046

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