On the use of black hole binaries as probes of local dark energy properties

Details On the use of black hole binaries as probes of local dark energy properties On the use of black hole binaries as probes of local dark energy properties

2009-10-13

arxiv.org/abs/0910.2337v2

Physics Letters B 683 (2010) 7-10

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

5 pages, 1 figure. Matches version accepted for publication in Physics Letters B

Scientific paper

10.1016/j.physletb.2009.11.057

Accretion of dark energy onto black holes will take place when dark energy is not a cosmological constant. It has been proposed that the time evolution of the mass of the black holes in binary systems due to dark energy accretion could be detectable by gravitational radiation. This would make it possible to use observations of black hole binaries to measure local dark energy properties, e.g., to determine the sign of 1+w where w is the dark energy equation of state. In this Letter we show that such measurements are unfeasible due to the low accretion rates.

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