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Chinese Physics C > 2024, Vol. 48 > Issue(6): 065103 DOI: 10.1088/1674-1137/ad34c2

Impacts of gravitational-wave background from supermassive black hole binaries on the detection of compact binaries by LISA

  • 1.

    CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China

  • 2.

    School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China

  • 3.

    Institute of Applied Mathematics, Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100190, China

  • 4.

    School of Fundamental Physics and Mathematical Sciences, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310024, China

  • In the frequency band of the Laser Interferometer Space Antenna (LISA), extensive research has been conducted on the impact of foreground confusion noise generated by galactic binaries within the Milky Way Galaxy. Additionally, recent evidence of a stochastic signal, announced by the NANOGrav, EPTA, PPTA, CPTA, and InPTA, indicates that the stochastic gravitational-wave background (SGWB) generated by supermassive black hole binaries (SMBHBs) can contribute strong background noise within the LISA band. Given the presence of such strong noise, it is expected to have significant impacts on LISA's scientific missions. In this study, we investigate the impacts of the SGWB generated by SMBHBs on the detection of individual massive black hole binaries, verified galactic binaries, and extreme mass ratio inspirals in the context of LISA. We find it essential to resolve and eliminate the excess noise from the SGWB to guarantee the success of LISA's missions.
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Fan Huang, Yan-Chen Bi, Zhoujian Cao and Qing-Guo Huang. Impacts of gravitational-wave background from supermassive black hole binaries on the detection of compact binaries by LISA[J]. Chinese Physics C. doi: 10.1088/1674-1137/ad34c2
Fan Huang, Yan-Chen Bi, Zhoujian Cao and Qing-Guo Huang. Impacts of gravitational-wave background from supermassive black hole binaries on the detection of compact binaries by LISA[J]. Chinese Physics C. doi:10.1088/1674-1137/ad34c2 shu
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Received: 2024-02-21
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      沈阳化工大学材料科学与工程学院 沈阳 110142

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