Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994ap%26ss.217..181c&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 217, no. 1-2, p. 181-187
Astronomy and Astrophysics
Astronomy
3
Astronomical Models, Far Infrared Radiation, Far Ultraviolet Radiation, Infrared Astronomy, Interstellar Extinction, Milky Way Galaxy, Molecular Clouds, Point Sources, Sky Brightness, Carbon Monoxide, Histograms, Infrared Astronomy Satellite, Infrared Filters, Predictions, Stellar Color
Scientific paper
I report further developments of the Wainscoat et al. (1992) (hereafter WCVWS) model of the point source sky. The newest version of this model now predicts cumulative or differential source counts, and integrated surface brightness of the sky due to smeared point sources, in any direction, for any infrared filter with passband within the range 2.0-35.0 micrometers. The realistic representation of the Galaxy (disk, spiral arms and local spur, molecular ring, bulge, halo) and the extragalactic sky has been improved, guided by CO surveys of local molecular clouds. The newest version of the model is very well-validated by Infrared Astronomy Satellite (IRAS) source counts; works well at B and V, even in the plane; and operates successfully in the far-ultraviolet (FUV). Applications discussed are: interpreting the new Two Micron Galactic Survey (TMGS) near-infrared survey of the plane; confusion in sky surveys; and seeking cosmological background radiation.
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