Search for Gravitational Waves from Primordial Black Hole Binary Coalescences in the Galactic Halo

Details Search for Gravitational Waves from Primordial Black Hole Binary Coalescences in the Galactic Halo Search for Gravitational Waves from Primordial Black Hole Binary Coalescences in the Galactic Halo

2005-05-10

arxiv.org/abs/gr-qc/0505042v1

Phys.Rev.D72:082002,2005

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

7 pages, 4 figures, to be submitted to Phys. Rev. D

Scientific paper

10.1103/PhysRevD.72.082002

We use data from the second science run of the LIGO gravitational-wave detectors to search for the gravitational waves from primordial black hole (PBH) binary coalescence with component masses in the range 0.2--$1.0 M_\odot$. The analysis requires a signal to be found in the data from both LIGO observatories, according to a set of coincidence criteria. No inspiral signals were found. Assuming a spherical halo with core radius 5 kpc extending to 50 kpc containing non-spinning black holes with masses in the range 0.2--$1.0 M_\odot$, we place an observational upper limit on the rate of PBH coalescence of 63 per year per Milky Way halo (MWH) with 90% confidence.

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