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IRAS Observations of Active Galaxies

Neugebauer, G. and Soifer, B. T. and Rowan-Robinson, M. (1986) IRAS Observations of Active Galaxies. In: Structure and Evolution of Active Galactic Nuclei. Astrophysics and Space Science Library. No.121. Springer Netherlands , Dordrecht, pp. 11-19. ISBN 9789401085281.

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The IRAS survey gives an unbiased view of the infrared properties of the active galaxies. Seyfert galaxies occupy much the same area in color-color plots as do normal infrared bright galaxies, but extend the range towards flatter 60–25 µm slopes. Statistically the Seyfert 1 galaxies can be distinguished from the Seyfert 2 galaxies, lying predominantly closer to the area with constant slopes between 25 and 100 µm. The infrared measurements of the Seyfert galaxies cannot distinguish between the emission mechanisms in these objects although they agree with the currently popular ideas; they do provide a measure of the total luminosity of the Seyferts. The quasar’s position in the color-color diagrams continue the trend of the Seyferts. The quasar 3C48 is shown to be exceptional among the radio loud quasars in that it has a high infrared luminosity which dominates the power output of the quasar and is most likely associated with the underlying host galaxy.

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Additional Information:© Springer Science+Business Media Dordrecht 1986. We thank all the members of the IRAS team who made these observations possible. We especially thank George Helou for providing us with the radio-to-infrared luminosities. The Infrared Astronomical Satellite was developed and is operated by the Netherlands Agency for Aerospace Programs (NIVR), the US National Aeronautics and Space Administration (NASA), and the UK Science and Engineering Research Council (SERC).
Group:Infrared Processing and Analysis Center (IPAC)
Funding AgencyGrant Number
Nederlands Instituut voor Vliegtuigontwikkeling en Ruimtevaart (NIVR)UNSPECIFIED
Science and Engineering Research Council (SERC)UNSPECIFIED
Series Name:Astrophysics and Space Science Library
Issue or Number:121
Record Number:CaltechAUTHORS:20200930-113054106
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:105672
Deposited By: George Porter
Deposited On:01 Oct 2020 14:50
Last Modified:16 Nov 2021 18:45

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