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Prospects for observing extreme-mass-ratio inspirals with LISA

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arxiv 1704.00009 v1 pith:73FIDXBU submitted 2017-03-31 astro-ph.GA astro-ph.COgr-qc

Jonathan R Gair , Stanislav Babak , Alberto Sesana , Pau Amaro-Seoane , Enrico Barausse , Christopher P L Berry , Emanuele Berti , Carlos Sopuerta This is my paper · ORCID
classification astro-ph.GAastro-ph.COgr-qc
keywords astrophysicalinspiralslisaemriemrisestimateseventextreme-mass-ratio
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One of the key astrophysical sources for the Laser Interferometer Space Antenna (LISA) are the inspirals of stellar-origin compact objects into massive black holes in the centres of galaxies. These extreme-mass-ratio inspirals (EMRIs) have great potential for astrophysics, cosmology and fundamental physics. In this paper we describe the likely numbers and properties of EMRI events that LISA will observe. We present the first results computed for the 2.5 Gm interferometer that was the new baseline mission submitted in January 2017 in response to the ESA L3 mission call. In addition, we attempt to quantify the astrophysical uncertainties in EMRI event rate estimates by considering a range of different models for the astrophysical population. We present both likely event rates and estimates for the precision with which the parameters of the observed sources could be measured. We finish by discussing the implications of these results for science using EMRIs.

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Cited by 5 Pith papers

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

  1. Time-frequency Imprints of Extreme Mass-Ratio Inspirals in Confusion Gravitational Wave Background

    astro-ph.CO 2025-06 conditional novelty 7.0 of 10

    Correlations of time-frequency spectra can measure EMRI population parameters to a few percent accuracy even when the EMRI gravitational wave background is two orders of magnitude weaker than the white dwarf foreground.

  2. From S2 to LISA: Astrometric Bounds on Extreme-Mass-Ratio Inspirals and Bursts

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

    GRAVITY/S2 astrometry constrains the Galactic Centre stellar-mass black-hole cusp, giving upper limits of ~2.4×10^2 Gyr^-1 on the Milky Way EMRI rate and ~0.2 yr^-1 on detectable EMRBs, with a potentially LISA-visible...

  3. Resonant interactions from dynamical perturbers on generic orbits around an extreme mass ratio inspiral

    gr-qc 2025-07 conditional novelty 6.0 of 10

    A numerical scan of 141,130 third-body resonances in EMRI systems finds no action changes above 1% but some waveform phase shifts near 0.1 radian.

  4. Gravitational wave signatures of magnetized Ernst black hole

    gr-qc 2026-07 conditional novelty 4.0 of 10

    Magnetic fields in the Ernst black-hole spacetime alter zoom-whirl EMRI waveforms, spectra, and characteristic strain in ways the authors claim LISA-class detectors could probe.

  5. Periodic Timelike Motion and Gravitational Wave Signatures around a Magnetically Charged Black Hole Surrounded by Quintessence

    gr-qc 2026-06 unverdicted novelty 4.0 of 10

    Quintessence shifts orbital radii, turning points, and zoom-whirl parameters for timelike geodesics around a magnetically charged black hole, producing burst-like gravitational waveforms whose phase, timing, and milli...

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