首页|Imprints of ultralight axions on the gravitational wave and pulsar timing measurement

Imprints of ultralight axions on the gravitational wave and pulsar timing measurement

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The axion or axion-like particle motivated from a natural solution of strong CP problem or string theory is a promising dark matter candidate.We study the new observational effects of ultralight axion-like particles by the space-borne gravitational wave detector and the radio telescope.Taking the neutron star-black hole binary as an example,we demonstrate that the gravitational waveform could be obviously modified by the slow depletion of the axion cloud around the black hole formed through the superradiance process.We compare these new effects on the binary with the well-studied effects from dynamical friction with dark matter and dipole radiation in model-independent ways.Finally,we discuss the constraints from LIGO/Virgo and study the detectability of the ultralight axion particles at LISA and TianQin.

gravitational waveaxiondark matter

Ning Xie、Fa Peng Huang

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MOE Key Laboratory of TianQin Mission,TianQin Research Center for Gravitational Physics & School of Physics and Astronomy,Frontiers Science Center for TianQin,Gravitational Wave Research Center of CNSA,Sun Yat-sen University(Zhuhai Campus),Zhuhai 519082,China

National Natural Science Foundation of ChinaGuangdong Major Project of Basic and Applied Basic Research

122053872019B030302001

2024

中国科学:物理学 力学 天文学(英文版)
中国科学院

中国科学:物理学 力学 天文学(英文版)

CSTPCD
影响因子:0.91
ISSN:1674-7348
年,卷(期):2024.67(1)
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