Mathematics – Logic
Scientific paper
Jan 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001iaus..204...35c&link_type=abstract
The Extragalactic Infrared Background and its Cosmological Implications, Proceedings of IAU Symposium #204, held 15-18 August 20
Mathematics
Logic
3
Scientific paper
Recognition of an isotropic cosmic near-/mid-infrared background involves the removal of the zodiacal foreground (both scattered and re-radiated), of the truly diffuse Galactic foreground (dominated by fluorescent bands of policyclic aromatic hydrocarbons), and of resolved and unresolved Galactic point sources. I discuss model simulations of the near- and mid-infrared point source sky from which one can assess its particular contribution to the diffuse Galactic infrared foreground. I will also indicate the transitional stage which characterizes our knowledge of fundamental stellar parameters that are essential inputs to any such models. Using the latest version of the SKY model (ApJS, 83, 111, 1992; AJ, 105, 1860, 1993; AJ, 107, 582, 1994; ApJ, 427, 848, 1994; ApJ, 444, 874, 1995; A&A, 326, 597, 1997), I will demonstrate matches to deep point source counts for a variety of passbands and galactic latitudes, and will try to quantify the uncertainties achievable in model predictions of the integrated surface brightness due to the smearing of all these foreground point sources.
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