Optimizing Observing Patterns in Cosmic Microwave Background Radiation Anisotropy Experiments
نویسندگان
چکیده
منابع مشابه
Cosmic Microwave Background Anisotropy Observing Strategy Assessment
Given an instrument and a strategy for measuring the cosmic microwave background anisotropy, one should be able to calculate the expected uncertainties on the angular power spectrum, or on the parameters of a model spectrum. Here I present a semi-analytic method for doing so that is applicable to both differential and map-making observations. As an example, I examine the case of a balloon-borne...
متن کاملAsymmetric Beams in Cosmic Microwave Background Anisotropy Experiments
We propose a new formalism to handle asymmetric beams in the data analysis of cosmic microwave background anisotropy experiments. For any beam shape, the formalism finds the optimal circularly symmetric equivalent and is thus easily adaptable to existing data analysis methods. We demonstrate certain key points by using a simulated highly elliptic beam, and the beams and data of the MAXIMA-1 exp...
متن کاملForecasting Cosmic Parameter Errors from Microwave Background Anisotropy Experiments
Accurate measurements of the cosmic microwave background (CMB) anisotropies with an angular resolution of a few arcminutes can be used to determine fundamental cosmological parameters such as the densities of baryons, cold and hot dark matter, and certain combinations of the cosmological constant and the curvature of the Universe to percent-level precision. Assuming the true theory is a variant...
متن کاملOn Observing the Cosmic Microwave Background
The cosmic microwave background (CMB) comprises the oldest photons in the universe and is arguably our most direct cosmological observable. All precise and accurate measurements of its attributes serve to distinguish between cosmological models. Detector technology and observing techniques have advanced to the point where fluctuations in the CMB of order a few microkelvin are measured almost ro...
متن کاملTheoretical Implications of Microwave Background Radiation Anisotropy Experiments
Observational results from several experiments like COBE, SP, Saskatoon, PYTHON, ARGO, MAX, MSAM, Tenerife and CAT are considered and a comparison is made with predictions from several models. Conclusions are reached about the viability of current structure formation models.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 1996
ISSN: 0004-637X,1538-4357
DOI: 10.1086/177082