Search for Small-Scale Anisotropy in the 2.7° K Cosmic Background Radiation at a Wavelength of 3.56 Centimeters

Abstract

Drift scans were made of a selected track on the sky to search for small-scale anisotropy in the microwave background radiation. The observations were made with the 64-m antenna at Goldstone, California, operating at 3.56 cm. The half-power beam width was 2.3. The scans were approximately 1 in length. The upper bound on the small anisotropy along our track is AT/T 7.15 x i - (90 percent confidence). Some implications of this result are discussed. Subject headings: cosmic background radiation - cosmology - radio radiation