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Title: Modeling the reflectance spectrum of Callisto 0. 25 to 4. 1 microns

Abstract

Models employing Hapke's (1981) radiative transfer theory are presented for the 0.2-4.1 micron reflectance spectrum. A simultaneous intimate, as well as aereal, mixture solution of ice and dark material is envisioned, in order to satisfy both absorption band depths and reflectance levels. The models indicate that the surface's ice component is rather large-grained, and that the major spectral features above about 2.5 microns cannot be accounted for by the ice. Spectra obtained for the nonice material were similar to each other; their absorption features resemble hydrated silicates bearing both oxidation states of iron. 33 refs.

Authors:
;  [1]
  1. USGS, Federal Center, Denver, CO (USA)
Publication Date:
OSTI Identifier:
5756459
Resource Type:
Journal Article
Journal Name:
Icarus (International Journal of the Solar System); (USA)
Additional Journal Information:
Journal Volume: 89; Journal ID: ISSN 0019-1035
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; JUPITER PLANET; SATELLITES; ABSORPTION SPECTRA; CHEMICAL COMPOSITION; ICE; INFRARED SPECTRA; IRON; MAGNESIUM; MATHEMATICAL MODELS; MINERALOGY; RADIATION TRANSPORT; SPECTRAL REFLECTANCE; ULTRAVIOLET SPECTRA; ALKALINE EARTH METALS; ELEMENTS; METALS; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; PLANETS; SPECTRA; TRANSITION ELEMENTS; 640107* - Astrophysics & Cosmology- Planetary Phenomena

Citation Formats

Calvin, W M, and Clark, R N. Modeling the reflectance spectrum of Callisto 0. 25 to 4. 1 microns. United States: N. p., 1991. Web. doi:10.1016/0019-1035(91)90180-2.
Calvin, W M, & Clark, R N. Modeling the reflectance spectrum of Callisto 0. 25 to 4. 1 microns. United States. https://doi.org/10.1016/0019-1035(91)90180-2
Calvin, W M, and Clark, R N. 1991. "Modeling the reflectance spectrum of Callisto 0. 25 to 4. 1 microns". United States. https://doi.org/10.1016/0019-1035(91)90180-2.
@article{osti_5756459,
title = {Modeling the reflectance spectrum of Callisto 0. 25 to 4. 1 microns},
author = {Calvin, W M and Clark, R N},
abstractNote = {Models employing Hapke's (1981) radiative transfer theory are presented for the 0.2-4.1 micron reflectance spectrum. A simultaneous intimate, as well as aereal, mixture solution of ice and dark material is envisioned, in order to satisfy both absorption band depths and reflectance levels. The models indicate that the surface's ice component is rather large-grained, and that the major spectral features above about 2.5 microns cannot be accounted for by the ice. Spectra obtained for the nonice material were similar to each other; their absorption features resemble hydrated silicates bearing both oxidation states of iron. 33 refs.},
doi = {10.1016/0019-1035(91)90180-2},
url = {https://www.osti.gov/biblio/5756459}, journal = {Icarus (International Journal of the Solar System); (USA)},
issn = {0019-1035},
number = ,
volume = 89,
place = {United States},
year = {Fri Feb 01 00:00:00 EST 1991},
month = {Fri Feb 01 00:00:00 EST 1991}
}