Radical Compression of Cosmic Microwave Background Data
نویسندگان
چکیده
منابع مشابه
Radical Compression of Cosmic Microwave Background Data
Powerful constraints on theories can already be inferred from existing CMB anisotropy data. But performing an exact analysis of available data is a complicated task and may become prohibitively so for upcoming experiments with & 10 pixels. We present a method for approximating the likelihood that takes power spectrum constraints, e.g., “band-powers”, as inputs. We identify a bias which results ...
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The energy content in radiation from beyond our Galaxy is dominated by the Cosmic Microwave Background (CMB), discovered in 1965 [1]. The spectrum of the CMB is well described by a blackbody function with T = 2.725 K. This spectral form is one of the main pillars of the hot Big Bang model for the early Universe. The lack of any observed deviations from a blackbody spectrum constrains physical p...
متن کاملCfPA-98-th-16; CITA-98-25; astro-ph/9808264 Radical Compression of Cosmic Microwave Background Data
Powerful constraints on theories can already be inferred from existing CMB anisotropy data. But performing an exact analysis of available data is a complicated task and may become prohibitively so for upcoming experiments with ∼> 10 4 pixels. We present a method for approximating the likelihood that takes power spectrum constraints, e.g., “band-powers”, as inputs. We identify a bias which resul...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2000
ISSN: 0004-637X,1538-4357
DOI: 10.1086/308625