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LISA sources in globular clusters

M J Benacquista et al 2001 Class. Quantum Grav. 18 4025-4031   doi: 10.1088/0264-9381/18/19/308  Help

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M J Benacquista1, S Portegies Zwart2,3 and F A Rasio2
1 Department of Sciences, Montana State University-Billings, Billings, MT 59101, USA
2 Department of Physics and Center for Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
3 Hubble Fellow.

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 ~10 to ~103 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.

PACS numbers: 0430D, 0480N, 9555Y, 9780, 9820G

Print publication: Issue 19 (7 October 2001)
Received 5 July 2001
Published 17 September 2001

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