articlePhysical review. D/Physical review. D.May 31, 2017BRONZE OA

Science with the space-based interferometer LISA. V. Extreme mass-ratio inspirals

SBStanislav BabakJGJonathan GairASAlberto SesanaEBEnrico BarausseCFCarlos F. Sopuerta

Max Planck Institute for Gravitational Physics · University of Edinburgh · +12 more institutions

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Abstract

The space-based Laser Interferometer Space Antenna (LISA) will be able to observe the gravitational-wave signals from systems comprised of a massive black hole and a stellar-mass compact object. These systems are known as extreme-mass-ratio inspirals (EMRIs) and are expected to complete $\ensuremath{\sim}1{0}^{4}--1{0}^{5}$ cycles in band, thus allowing exquisite measurements of their parameters. In this work, we attempt to quantify the astrophysical uncertainties affecting the predictions for the number of EMRIs detectable by LISA, and find that competing astrophysical assumptions produce a variance of about three orders of magnitude in the expected intrinsic EMRI rate. However, we find that irrespective of…

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Topics & keywords

Topics
Keywords
  • Physics
  • Mass ratio
  • Gravitational wave
  • Redshift
  • Astrophysics
  • Luminosity distance
  • Black hole (networking)
  • Luminosity
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