Preprint

PUBDB-2023-03695

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Electromagnetic fields in compact binaries: post-Newtonian wave generation and application to double white dwarfs systems

Henry, Q. (Corresponding author) ; Larrouturou, F.DESY* ; Le Poncin-Lafitte, C.

2023

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Please use a persistent id in citations: doi:10.3204/PUBDB-2023-03695

Report No.: DESY-23-074; arXiv:2310.03785

Abstract: The aim of this work is twofold: (i) to properly define a wave-generation formalism for compact-supported sources embedded in Einstein-Maxwell theory, relying on matched post-Newtonian and multipolar-post-Minkowskian expansions; (ii) to apply this formalism (which is valid for any type of post-Newtonian sources) to the case of two stars with constant and aligned magnetic dipoles, by computing the fluxes of energy and angular momentum to the next-to-leading order, as well as the gravitational amplitude modes. Assuming eccentric orbits, we derive the evolution of orbital parameters, as well as the observables of the system, notably the gravitational phase for quasi-circular orbits. Finally, we give some numerical estimates for the contribution of the magnetic dipoles for some realistic systems.

Keyword(s): dipole, magnetic ; higher-order, 1 ; binary, compact ; gravitation ; orbit ; star ; electromagnetic field ; Einstein-Maxwell equation ; angular momentum

Note: 44 pages

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Contributing Institute(s):

1. Theoretische Astroteilchenphysik (Z_THAT)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)
2. LHCtoLISA - Precision Gravity: From the LHC to LISA (817791) (817791)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2023

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Database coverage:
; ; Published

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Journal Article Henry, Q. (Corresponding author) ; Larrouturou, F.DESY* ; Le Poncin-Lafitte, C.
Electromagnetic fields in compact binaries: Post-Newtonian wave generation and application to double white dwarfs systems
Physical review / D 109(8), 084048 (2024) [10.1103/PhysRevD.109.084048]2024     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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