Low Frequency Gravitational Waves from White Dwarf MACHO Binaries

Details Low Frequency Gravitational Waves from White Dwarf MACHO Binaries Low Frequency Gravitational Waves from White Dwarf MACHO Binaries

Apr 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aps..aprh20014l&link_type=abstract

American Physical Society, April Meeting, April 29-May 2, 2000 Long Beach, CA, abstract #H20.014

Physics

Scientific paper

The detection of MACHOs in the Galactic halo has led to a great deal of speculation about the nature of the population. We examine the possibility that the MACHOs are white dwarfs of mass ~ 0.5 M_solar, and calculate the contribution of white dwarf binaries to the gravitational wave background. The low-frequency (10-5 Hz < f < 10-1 Hz) gravitational wave spectrum from halo white dwarfs would be stronger than the expected Galactic disk contribution, and would dominate the stochastic background in the LISA waveband. These low-frequency gravitational wave detections will yield important clues to the nature of the dark MACHO population.

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