Lensing by Groups of Galaxies

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dc.creatorMoeller, Ole
dc.creatorNatarajan, Priyamvada
dc.date1999-09-17
dc.date1999-09-18
dc.date.accessioned2026-07-07T02:33:20Z
dc.date.available2026-07-07T02:33:20Z
dc.descriptionA large fraction of known galaxy-lens systems require a component of external shear to explain the observed image geometries. In most cases, this shear can be attributed to a nearby group of galaxies. We discuss how the dark-matter mass distribution of groups of galaxies can influence the external shear for strongly lensed sources and Calculate the expected weak lensing signal from groups for various mass profiles.
dc.description2 pages, 2 figures. Poster presentation at "Gravitational Lensing: Recent Progress and Future Goals", Boston University 1999, eds. T.G. Brainerd and C.S. Kochanek
dc.identifierhttps://arxiv.org/abs/astro-ph/9909303
dc.identifierhttp://arxiv.org/abs/astro-ph/9909303
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/14799
dc.subjectAstrophysics
dc.titleLensing by Groups of Galaxies
dc.typetext

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