Three-dimensional infrared models of the interplanetary dust distribution

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  • Kwon S. M.
    Department of Science Education, Kangwon National University
  • Hong S. S.
    Department of Astronomy, Seoul National University

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  • Three-dimensional infrared models of th

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Abstract

We have calculated the brightness of zodiacal emission by using the three dimensional optical models of zodiacal cloud. By comparing the calculated brightness distribution with the IRAS observations, we found that the cosine model is the best out of the three for describing the helioecliptic latitude dependence of dust distribution. We also found best parameters for the heliocentric variations of the dust temperature and volumetric absorption cross-section. Inclination and ascending node of the symmetry plane were deduced from annual variations of i) the peak offset latitude and ii) the pole brightness difference. Longitudes of the ascending node derived from i) and ii) are shown to be significantly different from each other.

Journal

  • Earth, Planets and Space

    Earth, Planets and Space 50 (6-7), 501-505, 1998

    Society of Geomagnetism and Earth, Planetary and Space Sciences, The Seismological Society of Japan, The Volcanological Society of Japan , The Geodetic Society of Japan , The Japanese Society for Planetary Sciences

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