Infrared emission from interplanetary dust

Journal Article · Wed Feb 01 00:00:00 EST 1989 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/167121· OSTI ID:6141713

Temi, P; De Bernardis, P; Masi, S; Moreno, G; Salama, A

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. 19 references.

• Research Organization: Roma I, Universita, Rome (Italy)
• OSTI ID: 6141713
• Journal Information: Astrophys. J.; (United States), Vol. 337
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMIC DUST
INFRARED RADIATION
INTERPLANETARY SPACE
ABSORPTION
CHEMICAL COMPOSITION
COMPARATIVE EVALUATIONS
EMISSION SPECTRA
GRAPHITE
MATHEMATICAL MODELS
PARTICLE SIZE
REFRACTIVITY
SILICATES
TEMPERATURE DISTRIBUTION
CARBON
DUSTS
ELECTROMAGNETIC RADIATION
ELEMENTAL MINERALS
ELEMENTS
MINERALS
NONMETALS
OPTICAL PROPERTIES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RADIATIONS
SILICON COMPOUNDS
SIZE
SPACE
SPECTRA
640107* - Astrophysics & Cosmology- Planetary Phenomena