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  Complete conservative dynamics for inspiralling compact binaries with spins at fourth post-Newtonian order

Levi, M., & Steinhoff, J. (2021). Complete conservative dynamics for inspiralling compact binaries with spins at fourth post-Newtonian order. Journal of Cosmology and Astroparticle Physics, 2021(09): 029. doi:10.1088/1475-7516/2021/09/029.

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 Urheber:
Levi, Michele, Autor
Steinhoff, J.1, Autor           
Affiliations:
1Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_1933290              

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Schlagwörter: General Relativity and Quantum Cosmology, gr-qc
 Zusammenfassung: In this work we complete the spin dependent conservative dynamics of
inspiralling compact binaries at the fourth post-Newtonian order, and in
particular the recent derivation of the next-to-next-to-leading order
spin-squared interaction potential. We derive the physical equations of motion
of the position and the spin from a direct variation of the action. Further, we
derive the quadratic in spin Hamiltonians, as well as their expressions in the
center of mass frame. We construct the conserved integrals of motion, which
form the Poincare algebra. This construction provided a consistency check for
the validity of our result, which is crucial in particular in the current
absence of another independent derivation of the next-to-next-to-leading order
spin-squared interaction. Finally, we provide here the complete gauge invariant
relations among the binding energy, angular momentum, and orbital frequency of
an inspiralling binary with generic compact spinning components to the fourth
post-Newtonian order. These high post-Newtonian orders, in particular taking
into account the spins of the binary constituents, will enable to gain more
accurate information on the constituents from even more sensitive gravitational
wave detections to come.

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 Datum: 2016-07-142021
 Publikationsstatus: Erschienen
 Seiten: 21 pages
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Titel: Journal of Cosmology and Astroparticle Physics
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 2021 (09) Artikelnummer: 029 Start- / Endseite: - Identifikator: -