Suppose that a large black hole forms two images of a background source separated by an angle
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Suppose that a large black hole forms two images of a background source separated by an angle θ. Let the fluxes of the two images be F+ and F− < F+. Show that the flux from the source would be F+ − F− if there were no lens and that the black hole should be located an angular distance [1+ (F−/F+)−1/2]−1θ along the line from the brighter image to the fainter one.
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Related Book For
Modern Classical Physics Optics Fluids Plasmas Elasticity Relativity And Statistical Physics
ISBN: 9780691159027
1st Edition
Authors: Kip S. Thorne, Roger D. Blandford
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