Gravitational Burst Radiation from Pulsars in the Galactic centre and stellar clusters
arXiv:2005.02053 · doi:10.1093/mnras/staa1259
Abstract
Pulsars (PSRs) orbiting intermediate or supermassive black holes at the centre of galaxies and globular clusters are known as Extreme Mass Ratio Binaries (EMRBs) and have been identified as precision probes of strong-field GR. For appropriate orbital parameters, some of these systems may also emit gravitational radiation in a `burst-like' pattern. The observation of this burst radiation in conjunction with the electromagnetic radio timing signal would allow for multimessenger astronomy in strong-field gravitational regimes. In this work we investigate gravitational radiation from these PSR-EMRBs, calculating the waveforms and SNRs and explore the influence of this GW on the pulsar radio signal. We find that for typical PSR-EMRBs, gravitational burst radiation should be detectable from both the Galactic centre and the centre of stellar clusters, and that this radiation will not meaningfully affect the pulsar timing signal, allowing PSR-EMRB to remain `clean' test-beds of strong-field GR.
15 pages, 9 figures, accepted for publication in MNRAS
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Cited by in corpus (5)
- Testing space-time geometries and theories of gravity at the Galactic Center with pulsar's time delay
- Orbital spin dynamics of a millisecond pulsar around a massive black hole with an general mass quadrupole
- Radio timing in a millisecond pulsar-extreme/intermediate mass ratio binary system
- Relativistic scattering of a fast spinning neutron star by a massive black hole
- Astrophysics with the Laser Interferometer Space Antenna