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Published March 1, 1984 | Published
Journal Article Open

Infrared galaxies in the IRAS minisurvey


A total of 86 galaxies have been detected at 60 μm in the high galactic latitude portion of the IRAS minisurvey. The surface density of detected galaxies with flux densities greater than 0.5 Jy is 0.25 deg^(-2). Virtually all the galaxies detected are spiral galaxies and have an infrared to blue luminosity ratio ranging from 50 to 0.5. For the infrared-selected sample, no obvious correlation exists between infrared excess and color temperature. The infrared flux from 10 to 100 μm contributes approximately 5% of the blue luminosity for galaxies in the magnitude range 14 < m_(pg) < 18 mag. The fraction of interacting galaxies is between one-eighth and one-fourth of the sample.

Additional Information

© 1983 American Astronomical Society. Received 1983 September 16; accepted 1983 November 16. It is a pleasure to thank all the people who have contributed to the success of the IRAS mission. The data used in this Letter were processed using the Science Data Analysis System at JPL, and we thank the many people who have contributed to the development and operation of this facility. We also thank C. Lonsdale and G. Helou for several useful discussions, and Joy Hodges for perseverance through the trying period of manuscript preparation.

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Published - 1984ApJ___278L__71S.pdf


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