Other
Scientific paper
Dec 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000stin...0111111a&link_type=abstract
Technical Report, Raytheon Information Technology and Scientific Services Lanham, MD United States
Other
Cosmic Rays, Background Radiation, Stellar Models, Zodiacal Light, Brightness Distribution, Spatial Distribution, Isotropy, Far Infrared Radiation, Near Infrared Radiation
Scientific paper
Empirical models for emission from stars and the ISM are subtracted from the zodiacal-light-subtracted DIRBE 3.5 pm emission. Because the models are contaminated by unknown levels of the CM at other near-IR wavelength, the residual is not simply the 3.5 Jim Cosmic IR Background, but a linear combination of the background levels at several wavelengths. In spite of this, the residual can be used to place limits on the near-IR CIB intensity if its spectral shape is assumed. Additionally, the residual level is shown to be more nearly isotropic than previous estimates over a much larger fraction of the sky. An excellent correlation of near-IR and far-IR ISM emission provides evidence of the high accuracy of the brighter stellar emission model. The possibility that any residual emission is zodiacal in nature is discussed.
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