Clusters of galaxies in large surveys: Identification and scaling laws.
We characterize a sample of 91 Rich Abell Clusters using photometric and spectra measurements from the Sloan Digital Sky Survey Data Release 7 (SDSS-DR7). We determine cluster memberships, cluster velocity dispersions, cluster scales, surface brightness, total masses, luminosities and cluster lumino...
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| Tipo de recurso: | tesis doctoral |
| Estado: | Versión publicada |
| Fecha de publicación: | 2015 |
| País: | México |
| Institución: | Instituto Nacional de Astrofísica, Óptica y Electrónica |
| Repositorio: | Repositorio Institucional del INAOE |
| Idioma: | inglés |
| OAI Identifier: | oai:inaoe.repositorioinstitucional.mx:1009/114 |
| Acceso en línea: | http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/114 |
| Access Level: | acceso abierto |
| Palabra clave: | info:eu-repo/classification/Galaxias elípticas/Elliptical galaxies info:eu-repo/classification/Halos galácticos/Galactic halos info:eu-repo/classification/Clusters de galaxias/Clusters of galaxies info:eu-repo/classification/Galaxias enanas/Dwarf galaxies info:eu-repo/classification/cti/1 info:eu-repo/classification/cti/21 |
| Sumario: | We characterize a sample of 91 Rich Abell Clusters using photometric and spectra measurements from the Sloan Digital Sky Survey Data Release 7 (SDSS-DR7). We determine cluster memberships, cluster velocity dispersions, cluster scales, surface brightness, total masses, luminosities and cluster luminosity functions. Also, we deal with theoretical concepts to estimate the cluster galaxies peculiar velocities and determine the cluster caustic curves, cluster core radius, virial radius and turn-around radius for all our cluster sample. In addition, we identify the most massive galaxy clusters in the Galaxy and Mass Assembly (GAMA) Survey. We develop a cluster finding technique that looks for 3D galaxy numerical overdensities. We use the Delaunay Tessellation Field Estimator (DTFE), followed by a caustic analysis to determine cluster masses. |
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