Other
Scientific paper
Jul 1967
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1967sci...157..187h&link_type=abstract
Science, Volume 157, Issue 3785, pp. 187-189
Other
14
Scientific paper
A series of far-infrared surveys of the sky is searching for thermal radiation from interstellar grains and for other localized sources of far-infrared radiation. A balloon-borne germanium bolometer, cooled by liquid helium, is used in association wth a telescope and spectral filters. During two initial flights the response to a black-body source was mainly between 300 and 360 microns. Approximately half the celestial sphere was surveyed, includng most of the northern Milky Way. The angular resolution was 2 degrees. Moon was the only source of thermal radiation detected. The upper limit on the differential flux, relative to background, from other sources was 2 × 10-23 watt per square centimeter per hertz, corresponding to an antenna temperature of 0.6 degrees K in the Rayleigh-Jeans approximation, or 10 degrees K for a black body.
Frederick Carl L.
Hoffmann William F.
Woolf Nancy J.
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