Interpretation of a rocket photometry of the inner zodiacal light

Details Interpretation of a rocket photometry of the inner zodiacal light Interpretation of a rocket photometry of the inner zodiacal light

Mar 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976a%26a....47..221l&link_type=abstract

Astronomy and Astrophysics, vol. 47, no. 2, Mar. 1976, p. 221-230. Bundesministerium für Forschung und Technologie

Astronomy and Astrophysics

Astrophysics

41

Astronomical Photometry, Light Scattering, Spatial Distribution, Zodiacal Dust, Zodiacal Light, Light Curve, Luminous Intensity, Mass Distribution, Mie Scattering, Particle Flux Density, Particle Size Distribution, Radio Meteors, Scattering Functions

Scientific paper

Results of previous rocket photometry of the inner zodiacal light are interpreted in terms of spatial distribution and particle properties. It is found that the spatial distribution of the zodiacal cloud is fan-like and, within 1 AU, close to an inverse-power dependence. The average inclination with an average angle of incidence of 32 deg is broader than for radio meteoroids. The plane of symmetry deviates from the ecliptic, apparently more than the invariable plane. The fluxes of interplanetary dust determined from micrometeoroid detectors on space probes and from microcraters on samples of lunar surface material imply that the average size of the particles causing the zodiacal light is of the order of 30 microns. The measured color and polarization of the inner zodiacal light are in agreement with this conclusion. Fluxes of interplanetary dust and zodiacal-light brightness are found to be compatible. 'Empirical' scattering functions are derived and compared with scattering functions obtained from Mie theory or geometric-optics approximations.

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