Understanding the importance of transient resonances in extreme mass ratio inspirals

C. P.L. Berry, R. H. Cole, P. Cañizares, J. R. Gair

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


Extreme mass ratio inspirals (EMRIs) occur when a compact object orbits a much larger one, like a solar-mass black hole around a supermassive black hole. The orbit has 3 frequencies which evolve through the inspiral. If the orbital radial frequency and polar frequency become commensurate, the system passes through a transient resonance. Evolving through resonance causes a jump in the evolution of the orbital parameters. We study these jumps and their impact on EMRI gravitational-wave detection. Jumps are smaller for lower eccentricity orbits; since most EMRIs have small eccentricities when passing through resonances, we expect that the impact on detection will be small. Neglecting the effects of transient resonances leads to a loss of ∼ 4% of detectable signals for an astrophysically motivated population of EMRIs.

Original languageEnglish (US)
Article number012052
JournalJournal of Physics: Conference Series
Issue number1
StatePublished - Jun 1 2017
Event11th International LISA Symposium - Zurich, Switzerland
Duration: Sep 5 2016Sep 9 2016

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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