QSO 0957+561 and other large-separated double quasars: some new results and a future observational project

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dc.creatorOknyanskij, V. L.
dc.date2005-02-04
dc.date2005-02-14
dc.date.accessioned2026-07-07T02:16:56Z
dc.date.available2026-07-07T02:16:56Z
dc.descriptionWe collected from literature the information about large-separated pairs of QSOs, which however once were suspected as gravitationally lensed system. We discuss some new results on time delay determinations including optical-radio correlations for QSO 0957+561. We considered some possible observational effects of gravitational lensing by a cosmic string. A future international project for observations of the gravitational lens system UM425 is briefly discussed.
dc.description9 pages
dc.identifierhttps://arxiv.org/abs/astro-ph/0502087
dc.identifierhttp://arxiv.org/abs/astro-ph/0502087
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/8982
dc.subjectAstrophysics
dc.titleQSO 0957+561 and other large-separated double quasars: some new results and a future observational project
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