Limits to source counts and cosmic microwave background fluctuations at 10. 6 GHz

Journal Article · Sun Mar 15 04:00:00 EST 1981 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/158749· OSTI ID:6458400

Seielstad, G A; Masson, C R; Berge, G L

We have determined the distribution of deflections due to sky temperature fluctuations at 10.6 GHz. If all the deflections are due to fine structure in the cosmic microwave background, we limit these fluctuations to ..delta..T/T< or approx. =2.5 x 10/sup -4/ on an angular scale of 11 arcmin. If, on the other hand, all the deflections are due to confusion among discrete radio sources, the areal density of these sources is calculated for various slopes of the differential source count relationship and for various cutoff flux densities. If, for example, the slope is 2.1 and the cutoff is 10 mJy, we find (0.25--3.3) 10/sup 6/ sources sr/sup -1/ Jy/sup -1/.

• Research Organization: Owens Valley Radio Observatory, California Institute of Technology
• OSTI ID: 6458400
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 244:3; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640101* -- Astrophysics &amp; Cosmology-- Cosmic Radiation
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BACKGROUND RADIATION
COSMIC RADIATION
COSMIC RADIO SOURCES
COSMOLOGY
DISTRIBUTION
ELECTROMAGNETIC RADIATION
FLUCTUATIONS
FLUX DENSITY
IONIZING RADIATIONS
MATHEMATICS
MICROWAVE RADIATION
RADIATIONS
SPATIAL DISTRIBUTION
STATISTICS
VARIATIONS