Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published June 1, 1985 | Published
Journal Article Open

IRAS observations of Seyfert galaxies


IRAS measurements at 25, 60, and 100 μm have been used to analyze the infrared properties of Seyfert galaxies from the Markarian and NGC catalogs. One hundred sixteen of 186 Seyfert galaxies were detected. About 50% of all Seyfert galaxies in the sample have 60 μm luminosities in excess of ~ 10^(10) L_☉ , and the mean 60 μm luminosity increases with the optical B absolute magnitude. The luminosity functions of the Seyfert 1 and Seyfert 2 galaxies appear quite similar. It is possible, however, to statistically separate the two types of galaxies in color-color plots. The 100 to 60 μm energy distributions flatten systematically with increasing 60 μm luminosity. The infrared measurements provide a measure of the bolometric luminosity of the Seyfert galaxies but do not discriminate between the physical processes involved.

Additional Information

© 1985 American Astronomical Society. Received 1985 January 31; accepted 1985 March 18. We thank our IRAS associates on the science team, on the technical staff, and in project management for their valuable support and assistance. We particularly thank Judy Bennett for her valuable assistance. T. Heckman and H. Marshall made useful comments on an early draft of the manuscript. The work described here was supported in part through the Jet Propulsion Laboratory under contract with NASA.

Attached Files

Published - 1985ApJ___293L__11M.pdf


Files (110.1 kB)
Name Size Download all
110.1 kB Preview Download

Additional details

August 19, 2023
March 5, 2024