Statistics – Computation
Scientific paper
Jul 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...330..168x&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 330, July 1, 1988, p. 168-177.
Statistics
Computation
Black Holes (Astronomy), Gravitational Fields, Radio Sources (Astronomy), Relativistic Theory, Velocity Distribution, Very Long Base Interferometry, Computational Astrophysics, Light Speed, Red Shift
Scientific paper
The apparent velocity of sources moving in the gravitational field of a Kerr black hole, as seen by a distant observer is investigated. A full, general relativity treatment is used, and the velocity is calculated for several combinations of the positions of the source and the observer. The calculations show that, on the whole, the Kerr-field velocity, when superluminal, is greater or smaller than the no-field, 'special relativity' velocity according as the source is located on the approaching or receding side. For a source located on the axis at radial distance r(e) the Kerr-field velocity is defined only for observers outside a certain angle from the axis, and is generally smaller than the no-field velocity, when both are superluminal.
Kiang Tao
Xiang Shou-Ping
Zhang Jia-Lü
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