Testing the isotropy of the cosmic microwave background - The ULISSE experiment

Details Testing the isotropy of the cosmic microwave background - The ULISSE experiment Testing the isotropy of the cosmic microwave background - The ULISSE experiment

Sep 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...396l..57d&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 396, no. 2, Sept. 10, 1992, p. L57-L60. Research supported by MUR

Computer Science

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22

Balloon Sounding, Cosmology, Radiation Distribution, Relic Radiation, Atmospheric Effects, Background Radiation, Balloon-Borne Instruments, Baryons, Dark Matter

Scientific paper

The balloon-borne experiment ULISSE, operating at millimetric wavelengths, set a very stringet upper limit to the differential (single-subtracted) cosmic microwave background anisotrophy at 6 deg: Delta-T is less than or approximately equal to 35 micro-K. This limit is obtained with a likelihood-ratio analysis; the size and power of the test are 5 and less than or equal to 80 percent, respectively. The implications of this upper bound for flat cold dark matter and open baryonic-dominated cosmologies are discussed.

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