Studying the formation and evolution of massive galaxies in (proto)clusters using millimetre observations
In this thesis we study the impact that the population of high-z dust-obscured galaxies with strong sub-millimeter and millimeter emission has on the observations and measurements of the Sunyaev Zel'dovich Effect (SZE) with the new generation of arcmin-resolution sub-millimeter and millimeter [...
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| Tipo de recurso: | tesis doctoral |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2012 |
| País: | México |
| Institución: | Instituto Nacional de Astrofísica, Óptica y Electrónica |
| Repositorio: | Repositorio Institucional del INAOE |
| Idioma: | inglés |
| OAI Identifier: | oai:inaoe.repositorioinstitucional.mx:1009/760 |
| Acceso en línea: | http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/760 |
| Access Level: | acceso abierto |
| Palabra clave: | info:eu-repo/classification/Galaxias/Galaxies info:eu-repo/classification/Cúmulos de galaxias/Clusters of galaxies info:eu-repo/classification/Astronomía submilimétrica/Submillimetre astronomy info:eu-repo/classification/Cosmología/Cosmology info:eu-repo/classification/cti/1 info:eu-repo/classification/cti/21 |
| Sumario: | In this thesis we study the impact that the population of high-z dust-obscured galaxies with strong sub-millimeter and millimeter emission has on the observations and measurements of the Sunyaev Zel'dovich Effect (SZE) with the new generation of arcmin-resolution sub-millimeter and millimeter [(sub-)mm] wavelength experiments (e.g. ACT, SPT and Planck). To quantify the contamination and uncertainties introduced by the population of (sub-)mm galaxies (SMGs), we have developed the required tools and code to generate controlled high-resolution simulations of the SZE produced by massive galaxy clusters (M > 1014 M_) at different redshifts, the gravitationally lensed population of SMGs, and the primary anisotropies of the cosmic microwave background radiation (CMB). These high-resolution simulations can be later degraded with lower-resolution telescope-beams and contaminated with different noise components, in order to reproduce more realistically the observations of specific experiments. The SZE of clusters is generated assuming that the intra-cluster medium (ICM) is isothermal and has an electron density distribution described by a spherically symmetric β-model. We adopt scaling relations that allow us to derive all the required cluster parameters only using assumptions about its total mass and redshift (once a value of β is assumed for the β-model). Despite the simplified model, these SZE simulations show good agreement with arcmin-resolution observations of massive clusters. Due to its reduced number of input parameters the model could be easily adapted to simulate large SZE surveys, in combination with cluster catalogues derived from dark-matter N-body simulations. The population of SMGs is generated by numerically integrating a luminosity function (e.g. of 60 µm IRAS galaxies) which is evolved with redshift and extrapolated to (sub-)mm wavelengths assuming a single spectral energy distribution (SED) typical of SMGs. This method allows us to generate catalogues of SMGs (including their redshifts) that are in agreement with the most recent galaxy number counts derived from 1.1 mm observations using AzTEC, the first-light camera for the Large Millimeter Telescope (LMT), during its earlier observing campaigns on the James Clerk Maxell Telescope (JCMT) in 2005 and on the Atacama Submillimeter Telescope Experiment (ASTE) in 2007 and 2008. |
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