Gravitational radiation from differentially rotating and oscillating white dwarfs

Details Gravitational radiation from differentially rotating and oscillating white dwarfs Gravitational radiation from differentially rotating and oscillating white dwarfs

Apr 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006ap.....49..201s&link_type=abstract

Astrophysics, Volume 49, Issue 2, pp.201-210

Astronomy and Astrophysics

Astrophysics

1

Stars, White Dwarfs, Gravitational Radiation

Scientific paper

We examine the possible emission of gravitational waves from white dwarfs undergoing self-similar oscillations driven by the energy released during relaxation of their differential rotation. Two distributions of the initial angular momentum are considered. It is assumed that 1% of the energy dissipated by a rotating white dwarf is converted into the energy of self-similar oscillations and, therefore, into gravitational radiation. The relative amplitude of the gravitational radiation from an isolated white dwarf at a distance of 50 pc is found to be less than 10-27. The emission from the galactic population of white dwarfs may create a background which overlaps the random cosmological background of gravitational radiation for the improved decihertz detectors currently being proposed.

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