Making Maps Of The Cosmic Microwave Background: The MAXIMA Example
| Autor: | Sang Oh, Jiun-Huei Proty Wu, Adrian T. Lee, Paul L. Richards, Bahman Rabii, Julian Borrill, Pedro G. Ferreira, Shaul Hanany, Andrew H. Jaffe, Amedeo Balbi, Radek Stompor, C. D. Winant, George F. Smoot |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Nuclear and High Energy Physics
noise media_common.quotation_subject Cosmic microwave background FOS: Physical sciences Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics 01 natural sciences Cosmology mathematical analysis Rendering (computer graphics) Theoretical physics Settore FIS/05 - Astronomia e Astrofisica Observational cosmology 0103 physical sciences 010303 astronomy & astrophysics algorithm article calculation cosmic radiation cosmos microwave radiation media_common Physics Mathematical model 010308 nuclear & particles physics Astrophysics (astro-ph) Astrophysics::Instrumentation and Methods for Astrophysics Sky Maxima Algorithm Microwave |
| Popis: | This work describes Cosmic Microwave Background (CMB) data analysis algorithms and their implementations, developed to produce a pixelized map of the sky and a corresponding pixel-pixel noise correlation matrix from time ordered data for a CMB mapping experiment. We discuss in turn algorithms for estimating noise properties from the time ordered data, techniques for manipulating the time ordered data, and a number of variants of the maximum likelihood map-making procedure. We pay particular attention to issues pertinent to real CMB data, and present ways of incorporating them within the framework of maximum likelihood map-making. Making a map of the sky is shown to be not only an intermediate step rendering an image of the sky, but also an important diagnostic stage, when tests for and/or removal of systematic effects can efficiently be performed. The case under study is the MAXIMA data set. However, the methods discussed are expected to be applicable to the analysis of other current and forthcoming CMB experiments. Replaced to match the published version, only minor changes |
| Databáze: | OpenAIRE |
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