The Two-Body Gravitational Lens Effect(time Scales of Flux Changes and Their Dependences)

Details The Two-Body Gravitational Lens Effect(time Scales of Flux Changes and Their Dependences) The Two-Body Gravitational Lens Effect(time Scales of Flux Changes and Their Dependences)

Jun 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984jkas...17...15c&link_type=abstract

Journal of Korean Astronomical Society, vol.17, p.15-22

Astronomy and Astrophysics

Astronomy

1

Scientific paper

The transverse velocities of the gravitational lens system (galaxy plus a 'disturbing star') and their dependences on unknown properties of the source and the deflecting object are discussed. We have derived an analytic expression for the transverse velocity in terms of the velocities of the light source, the gravitational lensing galaxy and the 'disturbing star', and the observer. The results are then further applied to an estimate of the expectation value of the absolute transverse velocity and of the probable time scales of flux changes of the double QSO 0957+561A,B.

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