Physics – Geophysics
Scientific paper
Feb 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...337..528t&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 337, Feb. 1, 1989, p. 528-535. Research supported by CNR.
Physics
Geophysics
6
Emission Spectra, Infrared Radiation, Interplanetary Dust, Absorption Cross Sections, Chemical Composition, Graphite, Particle Size Distribution, Silicates, Temperature Distribution, Interplanetary Dust, Infrared, Wavelengths, Emissions, Models, Grain, Structure, Chemistry, Composition, Refractive Index, Comparisons, Absorption, Calculations, Graphite, Silicates, Spectroscopy, Spectra
Scientific paper
Standard models of the interplanetary dust emission fail to account satisfactorily for IR observations. A new model of the dust, based on very simple assumptions on the grain structure (spherical and homogeneous) and chemical composition (astronomical silicates, graphite, blackbodies) is developed. Updated values of the refractive indexes have been included in the analysis. The predictions of the model (absolute values of the fluxes, spectral shape, elongation dependence of the emission) have then been compared with all the available IR observations performed by the ARGO (balloon-borne experiment by University of Rome), AFGL and Zodiacal Infrared Project (ZIP) (rocket experiments by Air Force Geophysics Laboratory, Bedford, Mass.), and IRAS satellite. Good agreement is found when homogeneous data sets from single experiments (e.g., ZIP and ARGO) are considered separately.
de Bernardis Paolo
Masi Silvia
Moreno Giovani
Salama Alberto
Temi Pasquale
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