Microwave Background Spectrum - Survey of Recent Results
نویسندگان
چکیده
منابع مشابه
THE CMB SPECTRUM Cosmic Microwave Background
The observed cosmic microwave background (CMB) radiation provides strong evidence for the hot big bang. The success of primordial nucleosynthesis calculations (“Big-bang nucleosynthesis”) requires a cosmic background radiation (CBR) characterized by a temperature kT ∼ 1MeV at a redshift of z ≃ 109. In their pioneering work, Gamow, Alpher, and Herman[2] realized this and predicted the existence ...
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ARCHEOPS is a balloon–borne instrument dedicated to measuring cosmic microwave background (CMB) temperature anisotropies at high angular resolution (∼ 12 arcmin.) over a large fraction (30%) of the sky in the (sub)millimetre domain (from 143 to 545 GHz). We describe the results obtained during the last flight: the ARCHEOPS estimate of the CMB angular power spectrum linking for the first time CO...
متن کاملArcheops ’ results on the Cosmic Microwave Background
Archeops is a balloon–borne experiment dedicated to the measurement of the temperature anisotropies of the cosmic microwave background (CMB) from large angular scales to about 10 arcminutes. A brief introduction to the CMB is given below, followed by a description of the Archeops experiment. Archeops flew on the 7th of February 2002 in the Arctic night from Kiruna (Sweden) to Russia. The analys...
متن کاملDasi First Results: a Measurement of the Cosmic Microwave Background Angular Power Spectrum
We present measurements of anisotropy in the Cosmic Microwave Background (CMB) from the first season of observations with the Degree Angular Scale Interferometer (DASI). The instrument was deployed at the South Pole in the austral summer 1999–2000, and made observations throughout the following austral winter. We present a measurement of the CMB angular power spectrum in the range 100 < l < 900...
متن کاملDegree Angular Scale Interferometer First Results: a Measurement of the Cosmic Microwave Background Angular Power Spectrum
We present measurements of anisotropy in the cosmic microwave background (CMB) from the first season of observations with the Degree Angular Scale Interferometer (DASI). The instrument was deployed at the South Pole in the austral summer 1999–2000, and we made observations throughout the following austral winter. We present a measurement of the CMB angular power spectrum in the range 100 < l < ...
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ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 1977
ISSN: 0074-1809
DOI: 10.1017/s0074180900016284