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Binary radial velocity measurements with space-based gravitational-wave detectors

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arxiv 1902.01402 v2 pith:WWJD4B6W submitted 2019-02-04 astro-ph.HE gr-qc

Kaze W.K. Wong , Vishal Baibhav , Emanuele Berti This is my paper · ORCID
classification astro-ph.HEgr-qc
keywords blackdopplergravitational-waveholemassivemeasurementsaroundbinary
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Unlike traditional electromagnetic measurements, gravitational-wave observations are not affected by crowding and extinction. For this reason, compact object binaries orbiting around a massive black hole can be used as probes of the inner environment of the black hole in regions inaccessible to traditional astronomical measurements. The orbit of the binary's barycenter around the massive black hole will cause a Doppler shift in the gravitational waveform which is in principle measurable by future space-based gravitational-wave interferometers, such as the Laser Interferometer Space Antenna (LISA). We investigate the conditions under which these Doppler shifts are observable by LISA. Our results imply that Doppler shift observations can be used to study the central region of globular clusters in the Milky Way, as well the central environment of extragalactic massive black holes.

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Cited by 3 Pith papers

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

  1. Ringdown and lensing of triple systems

    gr-qc 2026-05 unverdicted novelty 6.0 of 10

    Numerical relativity simulations of triple black hole systems reveal redshift effects and gravitational lensing in ringdown signals from head-on mergers, with no additional black hole formation from amplified waves.

  2. Probing the Nature of Black Holes: Deep in the mHz Gravitational-Wave Sky

    astro-ph.HE 2019-08 unverdicted novelty 3.0 of 10

    A gravitational wave observatory ten times more sensitive than LISA in the millihertz band would enable precision tests of general relativity, black hole horizons, exotic compact objects, ultralight bosons, and dark m...

  3. The Missing Link in Gravitational-Wave Astronomy: Discoveries waiting in the decihertz range

    gr-qc 2019-08 accept novelty 3.0 of 10

    A Decihertz Observatory would fill the gap between LISA and ground detectors, enabling early-warning multimessenger astronomy and measurements of intermediate-mass black hole populations.

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