Signatures of Ultralight Bosons in the Orbital Eccentricity of Binary Black Holes

Bošković, Mateja; Porto Pereira, Rafael Alejandro; Koschnitzke, Matthias

doi:10.1103/PhysRevLett.133.121401

Journal Article

PUBDB-2024-06527

Signatures of Ultralight Bosons in the Orbital Eccentricity of Binary Black Holes

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

2024
APS College Park, Md.

Physical review letters 133(12), 121401 (2024) [10.1103/PhysRevLett.133.121401]

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Please use a persistent id in citations: doi:10.1103/PhysRevLett.133.121401 doi:10.3204/PUBDB-2024-06527

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 M≲10M⊙, formed exclusively in isolation, larger-than-expected values of the eccentricity, i.e., e≳10-2 at gravitational-wave frequencies fGW≃10-2 Hz, would provide tantalizing evidence for a new particle of mass between [0.5,2.5]×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 midband and decihertz detectors.

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

Classification:

ddc:530

Note: Phys.Rev.Lett. 133 (2024) 12, 121401. v2: 5 pages + 11 pages appendices and references, 11 figures; few typos corrected; added two sections to the appendices; published in PRL

Contributing Institute(s):

Theoretische Astroteilchenphysik (Z_THAT)

Research Program(s):

Experiment(s):

No specific instrument

Appears in the scientific report 2024

Database coverage:
Medline

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