Abstract
Using the new IRAS Faint Source Survey database at |b II| > 50°, we confirm the steep slope of the faint 60 μm source counts discovered by Hacking, Condon and Houck (1987). The slope of the faint number counts requires cosmological evolution at a rate higher than predicted by conventional models for passively evolving galaxies. Density evolution is also consistent with the infrared data. A scenario in which the percentage of galaxies undergoing a infrared luminous event evolves, caused by evolution of the galaxy-galaxy interaction rate, is attractive.
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© 1990 Kluwer Academic Publishers
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Lonsdale, C.J. (1990). Galaxy Evolution in the Far Infrared. In: Fabbiano, G., Gallagher, J.S., Renzini, A. (eds) Windows on Galaxies. Astrophysics and Space Science Library, vol 160. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-0543-6_17
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DOI: https://doi.org/10.1007/978-94-009-0543-6_17
Publisher Name: Springer, Dordrecht
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