Determination of time delay from the gravitational lens B1422+231

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dc.creatorPatnaik, A. R.
dc.creatorNarasimha, D.
dc.date2001-06-06
dc.date.accessioned2026-07-07T12:16:21Z
dc.date.available2026-07-07T12:16:21Z
dc.descriptionWe present the radio light curves of lensed images of the gravitational lens B1422+231. The observations have been carried out using the VLA at 8.4 and 15 GHz over a period of 197 days. We describe a method to estimate the time delay from the observed light curves. Using this method, our cross-correlation analysis shows that the time delay between images B and A is 1.5$\pm$1.4d, between A and C is 7.6$\pm$2.5d, between B and C is 8.2$\pm$2.0d. When applied to other lensed systems with measured time delays our new method gives comparable results.
dc.description10 pages, 9 figures, accepted in MNRAS
dc.identifierhttps://arxiv.org/abs/astro-ph/0106104
dc.identifierhttp://arxiv.org/abs/astro-ph/0106104
dc.identifierMon.Not.Roy.Astron.Soc.326:1403,2001
dc.identifierdoi:10.1111/j.1365-2966.2001.04711.x
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/211773
dc.subjectAstrophysics
dc.titleDetermination of time delay from the gravitational lens B1422+231
dc.typetext

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