BN6 - Post-Newtonian expansion and analytic approximations |
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Speaker |
Steinhoff, Jan |
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| Talk Title |
Spin, tidal, and modified gravity effects in the post-Newtonian approximation |
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Abstract |
The gravitational interaction of a binary system is dominated by the mass-monopoles of the bodies. However, the structure of the bodies leads to spin and tidal effects, which leave an imprint in the dynamics and gravitational radiation of a binary at subleading orders. We discuss how these effects can be incorporated in the post-Newtonian approximation. We furthermore discuss how a modification of gravity away from general relativity could influence the internal structure of the bodies and associated post-Newtonian effects. We comment on post-Newtonian formalisms with an emphasis on Hamiltonian methods. |
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