LISA Sources in Globular Clusters
M J Benacquista, S Portegies Zwart, F A Rasio
TL;DR
This paper estimates the number of gravitational wave sources in globular clusters detectable by LISA, highlighting their potential to reveal insights into binary evolution and cluster dynamics.
Contribution
It provides the first comprehensive estimates of LISA-detectable sources in globular clusters and discusses their significance for gravitational-wave astronomy.
Findings
Estimated 10 to 1000 detectable sources above 1 mHz
Sources are mostly undetectable by other means
Detection can inform binary evolution and cluster dynamics
Abstract
Globular clusters house a population of compact binaries that will be interesting gravitational wave sources for LISA. We provide estimates for the numbers of sources of several categories and discuss the sensitivity of LISA to detecting these sources. The estimated total number of detectable sources ranges from about 10 to about 1000 with gravitational wave frequencies above 1 mHz. These sources are typically undetectable by any other means and thus offer an opportunity for doing true gravitational-wave astronomy. The detection of these sources would provide information about both binary star evolution and the dynamics of globular clusters.
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