LISA Sources in Milky Way Globular Clusters

Kyle Kremer, Sourav Chatterjee, Katelyn Breivik, Carl L. Rodriguez, Shane L. Larson, Frederic A. Rasio

Research output: Contribution to journalArticle

25 Scopus citations

Abstract

We explore the formation of double-compact-object binaries in Milky Way (MW) globular clusters (GCs) that may be detectable by the Laser Interferometer Space Antenna (LISA). We use a set of 137 fully evolved GC models that, overall, effectively match the properties of the observed GCs in the MW. We estimate that, in total, the MW GCs contain ∼21 sources that will be detectable by LISA. These detectable sources contain all combinations of black hole (BH), neutron star, and white dwarf components. We predict ∼7 of these sources will be BH-BH binaries. Furthermore, we show that some of these BH-BH binaries can have signal-to-noise ratios large enough to be detectable at the distance of the Andromeda galaxy or even the Virgo cluster.

Original languageEnglish (US)
Article number191103
JournalPhysical review letters
Volume120
Issue number19
DOIs
StatePublished - May 11 2018

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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