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PUBDB-2024-00990

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Signatures of ultralight bosons in the orbital eccentricity of binary black holes

Boskovic, M.DESY* ; Koschnitzke, M. (Corresponding author)Extern*DESY* ; Porto Pereira, R. A.DESY*

2024

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Please use a persistent id in citations: doi:10.3204/PUBDB-2024-00990

Report No.: DESY-24-030; arXiv:2403.02415

Abstract: We show that the existence of clouds of ultralight particles surrounding black holes during their cosmological history as members of a binary system can leave a measurable imprint on the distribution of masses and orbital eccentricities observable with future gravitational-wave detectors. Notably, we find that for nonprecessing binaries with chirp masses ${\cal M} \lesssim 10 M_\odot$, formed by and large in isolation, greater-than-expected values of the eccentricity, i.e. $e\gtrsim 10^{-2}$ at gravitational-wave frequencies $f_{\rm GW} \simeq 10^{-2}$Hz, would provide tantalizing evidence for a new particle of mass between $[0.5,2.5] \times 10^{-12}\,$eV in nature. The predicted evolution of the eccentricity can also drastically affect the in-band phase evolution and peak frequency. These results constitute unique signatures of boson clouds of ultralight particles in the dynamics of binary black holes, which will be readily accessible with the Laser Interferometer Space Antenna, as well as future mid-band and Deci-hertz detectors.

Keyword(s): black hole, binary ; gravitational radiation, frequency ; new particle, mass ; boson, signature ; cloud ; gravitational radiation detector ; LISA ; history

Note: 5 pages + 9 pages appendices and references, 8 figures

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Contributing Institute(s):

1. Theoretische Astroteilchenphysik (Z_THAT)

Research Program(s):

1. 613 - Matter and Radiation from the Universe (POF4-613) (POF4-613)
2. DFG project G:(GEPRIS)390833306 - EXC 2121: Quantum Universe (390833306) (390833306)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2024

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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 Bošković, M. (Corresponding author)DESY* ; Koschnitzke, M. (Corresponding author)Extern*DESY* ; Porto Pereira, R. A. (Corresponding author)DESY*
Signatures of Ultralight Bosons in the Orbital Eccentricity of Binary Black Holes
Physical review letters 133(12), 121401 (2024) [10.1103/PhysRevLett.133.121401]2024     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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