Cosmic Shear with Keck: Systematic Effects

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dc.creatorMassey, Richard
dc.creatorBacon, David
dc.creatorRefregier, Alexandre
dc.creatorEllis, Richard
dc.date2001-12-17
dc.date.accessioned2026-07-07T02:01:58Z
dc.date.available2026-07-07T02:01:58Z
dc.descriptionCosmic shear probes the distribution of dark matter via gravitational lensing of distant, background galaxies. We describe our cosmic shear survey consisting of deep blank fields observed with the Keck II telescope. We have found biases in the standard weak lensing analysis, which are enhanced by the elongated geometry of the Keck fields. We show how these biases can be diagnosed and corrected by masking edges and chip defects.
dc.description2 pages. To appear in "A New Era in Cosmology", (ASP Conference Proceedings), eds. T. Shanks and N. Metcalfe
dc.identifierhttps://arxiv.org/abs/astro-ph/0112393
dc.identifierhttp://arxiv.org/abs/astro-ph/0112393
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/3937
dc.subjectAstrophysics
dc.titleCosmic Shear with Keck: Systematic Effects
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