Book ChapterDOI
Simulations of the Microwave Sky and of its “Observations”
TLDR
In this article, a preliminary report on the construction of fake millimeter and submillimeter skies, as observed by virtual instruments, using theoretical modeling and data extrapolations, is presented.Abstract:
Here follows a preliminary report on the construction of fake millimeter and submillimeter skies, as observed by virtual instruments, eg the COBRA/SAMBA mission, using theoretical modeling and data extrapolations Our goal is to create maps as realistic as possible of the relevant physical contributions which may contribute to the detected signals This astrophysical modeling is followed by simulations of the measurement process itself by a given instrumental configuration This will enable a precise determination of what can and cannot be achieved with a particular experimental configuration, and provide a feedback on how to improve the overall design It is a key step on the way to define procedures for the separation of the different physical processes in the future observed maps Note that this tool will also prove useful in preparing and analyzing current (eg balloon borne) Microwave Background experimentsread more
Citations
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Journal ArticleDOI
High resolution foreground cleaned CMB map from WMAP
TL;DR: In this paper, an independent foreground analysis of the Wilkinson Microwave Anisotropy Probe (WMAP) maps is performed to produce a cleaned cosmic microwave background (CMB) map, which is useful for cross-correlation with, e.g., galaxy and x-ray maps.
Journal ArticleDOI
A model of diffuse Galactic radio emission from 10 MHz to 100 GHz
Angelica de Oliveira-Costa,Max Tegmark,Bryan Gaensler,Justin L. Jonas,T. L. Landecker,Patricia Reich +5 more
TL;DR: In this paper, the authors present a global sky model derived from all publicly available total power large-area radio surveys, digitized with optical character recognition when necessary and compiled into a uniform format, as well as the new Villa Elisa data extending the 1.42-GHz map to the entire sky.
Journal ArticleDOI
A model of diffuse Galactic Radio Emission from 10 MHz to 100 GHz
Angelica de Oliveira-Costa,Max Tegmark,Bryan Gaensler,Justin L. Jonas,T. L. Landecker,Patricia Reich +5 more
TL;DR: In this article, the authors present a global sky model derived from all publicly available total power large-area radio surveys, digitized with optical character recognition when necessary and compiled into a uniform format, as well as the new Villa Elisa data extending the 1.4 GHz map to the entire sky.
Journal ArticleDOI
Reconstruction of high-resolution Sunyaev–Zeldovich maps from heterogeneous data sets using needlets
TL;DR: In this article, a multiscale needlet Internal Linear Combination (ILC) was proposed to optimize the thermal Sunyaev-Zeldovich (SZ) effect reconstruction at high resolution.
Journal ArticleDOI
Error estimation for the MAP experiment
TL;DR: In this paper, the first full sky component separation and CMB power spectrum estimation using a Wiener filtering technique on simulated data from the upcoming MAP experiment, set to launch in early 2001, was reported.
References
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Journal ArticleDOI
Patterns of the cosmic microwave background from evolving string networks
TL;DR: The observed absence of such anisotropies places constraints on theories in which galaxy formation is seeded by strings, but it is anticipated that the next generation of experiments will detect them.