Blueshift and spectral features of the gravitational searchlight |
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Authors: | S. M. Chitre J. V. Narlikar R. C. Kapoor |
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Affiliation: | (1) Tata Institute of Fundamental Research, 400 005 Bombay, India;(2) Indian Institute of Astrophysics, 560 006 Bangalore, India |
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Abstract: | It is shown that a photon emitted in the forward direction by a charged particle moving in an equatorial circular orbit centred on a highly collapsed mass M, the radius being slightly in excess of one and a half times the Schwarzschild radius, is strongly blueshifted when it arrives at a distant receiver. A ring shaped emitting region composed of such orbiting particles has a power law spectrum of the formd/ as seen by a distant stationary observer. |
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