Mapping the Dark Matter in Clusters
| dc.creator | Kaiser, Nick | |
| dc.creator | Squires, Gordon | |
| dc.creator | Fahlman, Greg | |
| dc.creator | Woods, David | |
| dc.date | 1994-07-01 | |
| dc.date.accessioned | 2026-07-07T02:19:16Z | |
| dc.date.available | 2026-07-07T02:19:16Z | |
| dc.description | Massive clusters of galaxies gravitationally shear the images of faint background galaxies. At large impact parameters the shear is weak, but can still be measured, to a reasonable degree of significance, as a statistical anisotropy of the faint galaxy images. We describe techniques for measuring the shear and discuss the interpretation of the shear field. We have applied this analysis to ms1224+007. We find a clear detection of the shear, but, puzzlingly, we find a mass about three times that obtained by application of the virial theorem, and obtain a very large mass-to-light ratio. Similar results have been obtained by other groups, and we discuss their implications. | |
| dc.description | 14 pages, plain TeX, available by anonymous ftp inc figs from ftp.cita.utoronto.ca in /cita/nick/meribel.ps | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9407004 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9407004 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/9796 | |
| dc.subject | Astrophysics | |
| dc.title | Mapping the Dark Matter in Clusters | |
| dc.type | text |