Details

Autor(en) / Beteiligte

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

Titel

Understanding the importance of transient resonances in extreme mass ratio inspirals

Ist Teil von

• Journal of physics. Conference series, 2017-05, Vol.840 (1), p.12052

Ort / Verlag

Bristol: IOP Publishing

Erscheinungsjahr

2017

Link zum Volltext

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• 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.