Whiskers and cosmic millimetre-wave sources

Details Whiskers and cosmic millimetre-wave sources Whiskers and cosmic millimetre-wave sources

Aug 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975natur.256..713e&link_type=abstract

Nature, vol. 256, Aug. 28, 1975, p. 713, 714.

Mathematics

9

Cosmic Dust, Extragalactic Radio Sources, Extraterrestrial Radio Waves, Millimeter Waves, Seyfert Galaxies, Whiskers (Crystals), Crystal Growth, Formaldehyde, Granular Materials, Graphite, Mathematical Models, Quasars

Scientific paper

Mathematical arguments are briefly presented which support the hypothesis that long (0.1-1 mm) whisker grains in dust surrounding strong extragalactic sources of infrared and millimeter-wave radiation could account for this radiation. If the presence of such whiskers was not assumed, total dust masses needed to explain the 100-micron-range emissions would exceed realistic estimates. Whiskers have greater antenna efficiencies than small spherical grains in this wavelength region, and thus fewer whiskers than spherules would be required for the outputs observed.

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