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Temperature Dependence of Mid-Infrared Silicate Absorption
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1976
Year
Materials ScienceCosmic AbundanceEngineeringRegion Absorption CoefficientPhysicsInterstellar SpaceOptical PropertiesNatural SciencesInfrared SpectroscopyApplied PhysicsTemperature DependenceAstrochemistryInfrared SensorRadiative AbsorptionPercent EnhancementThermodynamicsThermal EngineeringAstrophysics
It has been found that two silicates commonly believed to occur in interstellar space and in circumstellar shells show up to a 65 percent enhancement of the 20 $mu$ region absorption coefficient upon cooling to 80 K. The apparent sharpness of the absorption spectra is also greatly increased. (AIP)