Gravitational screens and superluminal separation in quasars

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dc.contributor.authorChitre, S. M.
dc.contributor.authorNarlikar, J. V.
dc.date.accessioned2012-03-15T08:35:55Z
dc.date.available2012-03-15T08:35:55Z
dc.date.issued1980-01-15
dc.description.abstractThe differential bending of radio waves by a suitably placed 'gravitational screen' such as an intervening galaxy can lead to large magnification of the separation velocity of the components in the nuclear region of a quasar. It is suggested that the apparent superluminal separation of such components observed in some quasars by the VLBI techniques could be due to velocity magnifications of this type. The astrophysical feasibility of this explanation is critically examined, and an optical search for objects of large mass-to-light ratio en route to quasars showing superluminal separation is advocated.en_US
dc.identifier.urihttp://hdl.handle.net/11007/1520
dc.language.isoenen_US
dc.publisherAmerican Astronomical Societyen_US
dc.relation.ispartofseriesAstrophysical Journal;Vol. 235, 1980
dc.subjectAstrophysicsen_US
dc.subjectExtragalactic radio sourcesen_US
dc.subjectGravitational effectsen_US
dc.subjectQuasarsen_US
dc.subjectLight speeden_US
dc.subjectMass ratiosen_US
dc.subjectOptical pathsen_US
dc.subjectRelativistic effectsen_US
dc.subjectVery long base interferometryen_US
dc.titleGravitational screens and superluminal separation in quasarsen_US
dc.typeArticleen_US

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