Cosmic background anisotropy studies at 10 deg angular scales with a HEMT radiometer

Details Cosmic background anisotropy studies at 10 deg angular scales with a HEMT radiometer Cosmic background anisotropy studies at 10 deg angular scales with a HEMT radiometer

Jan 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990aipc..198...84g&link_type=abstract

IN: Astrophysics in Antarctica (A92-22401 07-89). New York, American Institute of Physics, 1989, p. 84-87. Research supported by

Astronomy and Astrophysics

Astronomy

Background Radiation, High Electron Mobility Transistors, Microwave Radiometers, Relic Radiation, Anisotropy, Cryogenic Temperature, Dicke Radiometers, Radio Sources (Astronomy), Radiometric Correction

Scientific paper

Preliminary results are presented from the measurement of medium-to-large angular-scale fluctuations in the 15-25 GHz cosmic background radiation (CBR) by an expedition to the Amundsen-Scott South Pole Station. While no such fluctuations have yet been detected, data analyses are proceeding on the bases of likelihood-ratio tests which set upper limits of Delta-T/T for models which may thereby be given constraints. Attention is given to the 10-deg angular scale-sensitive CBR instrument.

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