- Conference date: 23-25 Apr 1995
- Location: College Park, Maryland (USA)
The Diffuse Infrared Background Experiment (DIRBE) aboard the Cosmic Background Explorer (COBE)1 mapped the entire sky redundantly in 10 wavebands at 1.25, 2.2, 3.5, 4.9, 12, 25, 60, 100, 140, & 240 μm. The scattering or thermal emission from interplanetary dust contributes significantly to the sky brightness in all 10 wavebands, dominating most. The sky brightness is modulated in time due to the changing viewing aspect of the DIRBE line of sight through the interplanetary dust cloud. A three‐dimensional semi‐physical model for the distribution, emission, and scattering of interplanetary dust was optimized to match the time‐dependence of the sky brightness as observed by DIRBE. The method and results of this fitting procedure are described, as are the difficulties and some future prospects for disentangling the zodiacal light from other contributions to the diffuse infrared sky brightness.
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