Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991aipc..222..129m&link_type=abstract
In: After the first three minutes; Proceedings of the 1st Astrophysics Workshop, Univ. of Maryland, College Park, Oct. 15-17, 19
Astronomy and Astrophysics
Astrophysics
Anisotropy, Cosmology, Microwaves, Relic Radiation, Astronomical Observatories, Power Spectra, Very Large Array (Vla)
Scientific paper
This is a short overview of current CMBR anisotropy experiments on small angular scales. Ongoing efforts and future prospects in relation to the testing of cosmological theories are summarized. Details of previously published as well as new observations from the Owens Valley 20 GHz experiment are presented, with limits on the anisotropy on arcminute scales. The new experiment, designated as the RING, is a survey of 96 fields arranged in an interlocked ring-like geometry. The statistical analysis of the RING data results in the upper limits deltaT/T less than 5.0 exp -5 (95 percent) and deltaT/T less than 6.1 exp -5 (99.87 percent), for Gaussian fluctuations with a correlation angle of 2.6 arcmin. A significant signal is detected above the noise level, however because of the high probability of residual discrete source contamination these results are not quoted as upper limits on intrinsic background fluctuations.
Lawrence Charles R.
Myers Steven T.
Readhead Anthony C.
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