Strong and weak lensing united III: Measuring the mass distribution of the merging galaxy cluster 1E0657-56

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dc.creatorBradac, Marusa
dc.creatorClowe, Douglas
dc.creatorGonzalez, Anthony H.
dc.creatorMarshall, Phil
dc.creatorForman, William
dc.creatorJones, Christine
dc.creatorMarkevitch, Maxim
dc.creatorRandall, Scott
dc.creatorSchrabback, Tim
dc.creatorZaritsky, Dennis
dc.date2006-08-18
dc.date.accessioned2026-07-07T11:42:35Z
dc.date.available2026-07-07T11:42:35Z
dc.descriptionThe galaxy cluster 1E0657-56 (z = 0.296) is remarkably well-suited for addressing outstanding issues in both galaxy evolution and fundamental physics. We present a reconstruction of the mass distribution from both strong and weak gravitational lensing data. Multi-color, high-resolution HST ACS images allow detection of many more arc candidates than were previously known, especially around the subcluster. Using the known redshift of one of the multiply imaged systems, we determine the remaining source redshifts using the predictive power of the strong lens model. Combining this information with shape measurements of "weakly" lensed sources, we derive a high-resolution, absolutely-calibrated mass map, using no assumptions regarding the physical properties of the underlying cluster potential. This map provides the best available quantification of the total mass of the central part of the cluster. We also confirm the result from Clowe et al. (2004,2006a).
dc.descriptionAccepted for publication in ApJ; Version with full-resolution figures available at http://www.slac.stanford.edu/~marusa/Work/bradac_strong_weak_III.pdf
dc.identifierhttps://arxiv.org/abs/astro-ph/0608408
dc.identifierhttp://arxiv.org/abs/astro-ph/0608408
dc.identifierAstrophys.J.652:937-947,2006
dc.identifierdoi:10.1086/508601
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/200936
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Phenomenology
dc.titleStrong and weak lensing united III: Measuring the mass distribution of the merging galaxy cluster 1E0657-56
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