A differential radiometer for mm wavelengths

Author

Piccirillo, L. ; Calabresi, M. ; Zucchetti, M.

Author_Institution

Istituto Superiore PT, Rome, Italy

fYear

1992

fDate

1-5 June 1992

Firstpage

1379

Abstract

The performance of an antenna system operating at millimeter wavelengths is discussed. Results from several measurements under different test conditions are presented. The antenna was used to make observations from Antarctica of the diffuse sky emission at 94 GHz. The instrument was used with the 94-GHz detector during the 1989/90 Italian Antarctica Expedition. Emission from both the Small and the Large Magellanic Cloud was observed, indicating the presence of a very cold dust component (15 K) coexisting with the warm dust detected by the IRAS satellite. A different run of measurements was dedicated to the emission of the Galactic plane. Again a strong emission was detected, indicating the presence of a similar cold dust component.<>

Keywords

Large Magellanic Cloud; Small Magellanic Cloud; cosmic dust; interstellar matter; radioastronomical observations; radiometers; radiotelescopes; 15 K; 94 GHz; Antarctica; Galactic plane; Italian Antarctica Expedition; Large Magellanic Cloud; Small Magellanic Cloud; antenna system; cold dust component; differential radiometer; diffuse sky emission; mm wavelengths; warm dust; Antarctica; Antenna measurements; Clouds; Detectors; Instruments; Millimeter wave measurements; Radiometry; Satellite broadcasting; Testing; Wavelength measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1992., IEEE MTT-S International

Conference_Location

Albuquerque, NM, USA

ISSN

0149-645X

Print_ISBN

0-7803-0611-2

Type

conf

DOI

10.1109/MWSYM.1992.188263

Filename

188263