Electronic Resource
Springer
Astrophysics and space science
261 (1998), S. 265-274
ISSN:
1572-946X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The detection of the fluctuations in the CMB by COBE has opened a new area of modern cosmology. The angular spectrum of these fluctuations potentially carries a lot of information, allowing for the possibility of determining accurately the cosmological parameters of the universe and giving constraint on scenario of the early universe. The detections of fluctuations on angular scale of the order of one degree are now numerous and allow one to start to put some constraints. The result presented here summarize our work on the question by the end of 1997. We first show that the Doppler peak is reasonably detected. The nature of the fluctuations has been investigated and found in agreement with a Gaussian distribution. Under the assumption of a critical density universe a large baryon fraction and a low Hubble constant are favored. Open models with Ω0〉≤ 0.4 seems not adequate to describe the data.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1002062215739
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