The IRAS minisurvey

Creators: Rowan-Robinson, M.; Clegg, P. E.; Beichman, C. A.; Neugebauer, G.; Soifer, B. T.; Aumann, H. H.; Beintema, D. A.; Boggess, N.; Emerson, J. P.; Gautier, T. N.; Gillett, F. C.; Hauser, M. G.; Houck, J. R.; Low, F. J.; Walker, R. G.

Abstract

Before the main IRAS all-sky survey was started, a preliminary survey of 900 deg^2 was carried out. Some results from this "minisurvey" are given here. The completeness of the minisurvey at galactic latitudes lbl = 20°-40° drops sharply at flux densities below 0.4, 0.4, 0.5, and 2.5 Jy at 12, 25, 60, and 100 μm. The corresponding surface densities of point sources brighter than these flux levels are 1.1, 0.4, 0.65, and 1.25 deg^(-2) respectively. Outside the galactic plane, the majority of the sources at 12 and 25 μm are stars, while galaxies make up a significant proportion of 60 μm sources. The 100 μm band is dominated by emission from interstellar dust over much of the minisurvey area.

Additional Information

© 1984 American Astronomical Society. Received 1983 September 16; accepted 1983 November 21. We would like to thank all those who have worked to make IRAS a success. We particularly wish to thank Tom Chester and the Science Support Team at JPL for their enthusiastic support of this work. Judy Bennett, Perry Hacking, David Walker, and John Fairclough provided programming assistance with parts of this work.

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Published - 1984ApJ___278L___7R.pdf

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