Bursts of gravitational radiation from active galactic nuclei and globular clusters |
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| Authors: | I G Dymnikova A K Popov A S Zentsova |
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| Institution: | (1) A. F. Yoffe Physico-Technical Institute, U.S.S.R. Academy of Sciences, Leningrad, U.S.S.R. |
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| Abstract: | The characteristics of gravitational bursts from active galactic nuclei, and globular clusters are obtained for three astrophysical situations:(i) scattering of stars by massive black holes residued at the centers of galaxies and globular clusters; (ii) the close encounters of stars in the nuclear regions of these objects; (iii) scattering of stars by black holes of stellar mass containing in the stellar population of galactic nuclei and clusters. The most effective source of gravitational bursts appears to be a scattering of stars by the massive central black holes which produces the bursts with dimensionless amplitudeh 10–19–10–21 and frequencies from 10–1 to 10–5 Hz. The characteristics obtained correspond to the possiblities of a future gravitational-wave experiment with use of laser Doppler tracking of interplanetary spacecrafts. |
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