Globular cluster distance measurements with LISA

Benacquista, Matthew.
June 2000
AIP Conference Proceedings;2000, Vol. 523 Issue 1, p405
Academic Journal
The dynamics of globular cluster evolution is thought to favor the production of hard binary systems in the cluster core. Binaries containing two degenerate objects will be detectable by LISA with a signal to noise ratio above 10. Very short period binaries with orbital periods below about 500 s will have a measurable frequency change (or chirp) due to inspiral during a one year integration. Using the measured chirp, it is possible to determine the distance to the binary with better than 10% precision if the angular position is known. Consequently, it is shown that globular cluster distances can be measured accurately using gravitational radiation. © 2000 American Institute of Physics.


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