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 journalArticlepeer-review

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)
JournalUnknown Journal
StatePublished - Feb 15 2018

ASJC Scopus subject areas

  • General

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