A new statistical investigation of the problem of isotropy in radio source population at 1400 MHz. I - Spatial density, source counts and spectral-index distributions in a new GB sky survey

Details A new statistical investigation of the problem of isotropy in radio source population at 1400 MHz. I - Spatial density, source counts and spectral-index distributions in a new GB sky survey A new statistical investigation of the problem of isotropy in radio source population at 1400 MHz. I - Spatial density, source counts and spectral-index distributions in a new GB sky survey

Apr 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977a%26a....56...53m&link_type=abstract

Astronomy and Astrophysics, vol. 56, no. 1-2, Apr. 1977, p. 53-57.

Mathematics

Probability

4

Isotropy, Microwave Frequencies, Radio Sources (Astronomy), Sky Surveys (Astronomy), Statistical Analysis, Cosmology, Probability Density Functions, Radio Telescopes, Spectrum Analysis

Scientific paper

On the basis of a continuum sky survey of radio sources at a frequency of 1400 MHz carried out at the NRAO and covering a sky area of 0.28 steradian within the Bologna region of measurements at 408 MHz, the problem of isotropy of spatial densities, source counts, and spectral-index distributions of sources is investigated. In the observed region there is no evidence for significant anisotropies similar to those reported from the GB survey, though flat-spectrum sources show the greatest variations in the sky distributions. However, these still can be random fluctuations.

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