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Science with the TianQin observatory: Preliminary results on massive black hole binaries

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arxiv 1902.04423 v2 pith:YHGFYQYH submitted 2019-02-12 astro-ph.HE astro-ph.COastro-ph.GAgr-qc

classification astro-ph.HEastro-ph.COastro-ph.GAgr-qc
keywords tianqinblackmassiveapproximatelybinariesholeaccuracyestimation
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We investigate the prospects of detecting gravitational waves from coalescing massive black hole binaries in the Universe with the TianQin observatory, a space-based gravitational wave interferometer proposed to be launched in the 2030s. To frame the scientific scope of the mission, in this paper, we carry out a preliminary estimation of the signal-to-noise ratio, detection rate and parameter estimation precision of massive black hole binaries detectable by TianQin. In order to make our results as robust as possible, we consider several models of the growth history of massive black holes, exploring the effect of some key astrophysical prescriptions as well the impact of the employed computational methods. In the most optimistic model, TianQin can detect as many as approximately 60 mergers per year. If TianQin detects a merger at redshift of 15, it will be capable of estimating its luminosity distance to within an accuracy of 10%; for a nearby event at redshift approximately 2, TianQin can issue early warnings 24 hours before coalescence, with a timing accuracy of around three hours and a sky localization ability of approximately 80 deg$^2$, thus enabling multi-messenger observations.

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Forward citations

Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Reconstruction of Primordial Power Spectrum from Gravitational Waves of High-Redshift Black Hole Binaries

    astro-ph.CO 2026-07 conditional novelty 6.0 of 10

    Gradient-descent inversion of redshifted BBH mass distributions recovers the PBH mass function and, via regularized Press-Schechter, a candidate O(10^{-2}) bump in the small-scale primordial power spectrum.

  2. Constructing a gravitational wave analysis pipeline for extremely large mass ratio inspirals

    astro-ph.HE 2026-01 conditional novelty 6.0 of 10

    A hierarchical semi-coherent F-statistic plus particle-swarm pipeline recovers an injected Sgr A* XMRI from 90 days of simulated TianQin data with sub-percent parameter precision.

  3. Constraints on parity and Lorentz violations from gravitational waves: a comparison between single-parameter and multi-parameter analysis

    gr-qc 2025-07 conditional novelty 5.0 of 10

    Multi-parameter and single-parameter gravitational-wave analyses yield comparable parity and Lorentz violation constraints for three models, but degeneracies weaken the multi-parameter result when two parameters modif...

  4. Chaotic Imprints in Gravitational Waves from Conformal-Anomaly-Corrected Extreme-Mass-Ratio Inspirals

    gr-qc 2026-07 reject novelty 4.0 of 10

    Gravitational-wave imprints are computed for trapped orbits in a conformal-anomaly-corrected black hole spacetime, but the chaotic motion is produced by an external harmonic potential rather than the anomaly itself.

  5. Constraining Lorentz and parity violations in gravity with multiband gravitational wave observations

    gr-qc 2026-01 conditional novelty 4.0 of 10

    Future multiband GW networks could tighten Lorentz- and parity-violation energy-scale bounds by up to several orders of magnitude, with massive binaries best for low-frequency and loud binaries for high-frequency effects.

  6. Constraining parity and Lorentz violations in gravity with future ground- and space-based gravitational wave detectors

    gr-qc 2025-02 conditional novelty 4.0 of 10

    Future gravitational wave detectors could tighten constraints on parity- and Lorentz-violating energy scales by one to three orders of magnitude, with space-based detectors winning for certain frequency dependencies.

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