Strongly lensed extreme mass-ratio inspirals
Martina Toscani, Ollie Burke, Chang Liu, Nour Bou Zamel, Nicola Tamanini, Federico Pozzoli
Abstract
In this work, we investigate detection rates and parameter estimation of strongly lensed extreme mass-ratio inspirals (LEMRIs) in the context of the Laser Interferometer Space Antenna (LISA). Our results indicate that LEMRIs constitute a new gravitational-wave target signal for LISA, with detection rates ranging from zero to $\ensuremath{\sim}40$ events over a four year-observation period, and that it is possible to reveal and characterize LEMRIs at redshift $z\ensuremath{\gtrsim}1$. We finally show that one LEMRI observation with identified host galaxy may yield percent constraints or better on the Hubble constant.
Topics & Concepts
PhysicsContext (archaeology)RedshiftGalaxyMass ratioHubble's lawGravitational waveAstrophysicsInterferometryParameter spaceAstronomyStatisticsGeographyMathematicsArchaeologyPulsars and Gravitational Waves ResearchRadio Astronomy Observations and TechnologyGalaxies: Formation, Evolution, Phenomena