Statistics – Computation
Scientific paper
Jul 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...357..301s&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 357, July 10, 1990, p. 301-308. Research supported by MPI and CNR.
Statistics
Computation
32
Cosmology, Diffuse Radiation, Electromagnetic Radiation, Microwave Frequencies, Radio Frequencies, Relic Radiation, Computational Astrophysics, Cryogenic Temperature, Instrument Compensation, Liquid Helium, Microwave Radiometers
Scientific paper
The absolute temperature of the sky at delta = 46.5 deg has been measured at 600 MHz (50 cm wavelength) using a differential radiometer and a cold calibrator at liquid helium temperature. To separate the cosmic background radiation (CBR) from the remaining components of the sky temperature, observations at other frequencies, now under way, are necessary. A preliminary estimate of the CBR temperature at 600 MHz made using data of T(sky) at 600 MHz and maps of the sky at 408 MHz already in the literature gives T(cbr) = (3.0 + or - 1.2) K, in good agreement with previous measurements at nearby frequencies.
Bersanelli Marco
Bonelli Giulio
Conti Giancarlo
Limon Michele
Marcellino G.
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