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On the Dynamical Capture of a MSP by an IMBH in a Globular Cluster

Published online by Cambridge University Press:  01 September 2007

B. Devecchi ,
M. Colpi ,
M. Mapelli  and
A. Possenti
B. Devecchi
Affiliation:
Department of Physics, University of Milano Bicocca, Italy email: bernadetta.devecchi@mib.infn.it, monica.colpi@mib.infn.it
M. Colpi
Affiliation:
Department of Physics, University of Milano Bicocca, Italy email: bernadetta.devecchi@mib.infn.it, monica.colpi@mib.infn.it
M. Mapelli
Affiliation:
Institute for Theoretical Physics, University of Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland email: mapelli@physik.unizh.ch
A. Possenti
Affiliation:
INAF, Osservatorio Astronomico di Cagliari, Poggio dei Pini, Strada 54, 22 I-09012 Capoterra, Italy email: possenti@ca.astro.it
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Abstract

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Globular clusters (GCs) are rich of millisecond pulsars (MSPs) and might also host single or binary intermediate–mass black holes (IMBHs). We simulate 3- and 4-body encounters in order to test the possibility that an IMBH captures a MSP. The newly formed system could be revealed from the timing signal of the MSP, providing an unambiguous measure of the BH mass. In current surveys, the number of expected [IMBH,MSP] binaries in the Milky Way is ~0.1. If next-generation radio telescopes (e.g. SKA) will detect ~10 times more MSPs in GCs, we expect to observe at least one [IMBH,MSP] binary.

Keywords

pulsars: generalglobular clusters: general
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 3 , Symposium S246: Dynamical Evolution of Dense Stellar Systems , September 2007 , pp. 359 - 360
Copyright
Copyright © International Astronomical Union 2008

References

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