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Date and Time of the Query: 2019-05-23 T04:47:14 PDT
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For refcode 1990ApJ...356...62I:
Retrieve 55 NED objects in this reference.
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Copyright by American Astronomical Society. Reproduced by permission
1990ApJ...356...62I INFRARED STUDIES OF ELLIPTICAL GALAXIES. II. A RADIO-SELECTED SAMPLE C. D. IMPEY Steward Observatory, University of Arizona AND C. G. WYNN-WILLIAMS AND E. E. BECKLIN Institute for Astronomy, University of Hawaii Received 1989 August 7; accepted 1989 December 14 ABSTRACT We have made an infrared survey of radio galaxies in the Bologna B2 catalog. We find that 40% of our sample have infrared luminosities of at least 10^9^ L_sun_, as opposed to about 8% of normal ellipticals. The galaxies are inhomogeneous-in their infrared properties; some galaxies have active nuclei, while others appear to be powered by star formation. The most infrared-luminous galaxies in our sample are those listed as "peculiar" by Zwicky. Statistically, these galaxies are strikingly different from Seyfert galaxies in their infrared properties in that they show much more radio emission in comparison with their infrared emission than do Seyferts, even when the emission from the extended radio lobes has been discounted. We also reanalyze the available data on the infrared properties of normal elliptical galaxies and find confirmation that the 10-12 micron emission from these galaxies comes either from circumstellar dust shells around evolved stars or from PAH-like (polycyclic aromatic hydrocarbon) grains. Subject headings: galaxies: photometry - infrared: sources - radio sources: galaxies
Retrieve 55 NED objects in this reference.
Please click here for ADS abstract

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