The ISO/NASA Key Project on AGN Spectral Energy Distributions (Characteristics of the ISO Data)
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The ISO/NASA Key Project on AGN Spectral Energy Distributions (Characteristics of the ISO Data)

  • Author(s): Hooper, EJ
  • Wilkes, BJ
  • McLeod, KK
  • Elvis, MS
  • Impey, CD
  • Lonsdale, CJ
  • Malkan, MA
  • McDowell, JC
  • et al.
Abstract

The U.S. ISO Key Project on quasar spectral energy distributions seeks to better understand the very broad-band emission features of quasars from radio to X-rays. A key element of this project is observations of 72 quasars with the ISOPHOT instrument at 8 bands, from 5 to 200 microns. The sample was chosen to span a wide range of redshifts and quasar types. This paper presents an overview of the analysis and reduction techniques, as well as general trends within the data set (comparisons with IRAS fluxes, uncertainties as a function of background sky brightness, and an analysis of vignetting corrections in chopped observing mode). A more detailed look at a few objects in the sample is presented in Wilkes et al. 1999, astro-ph/9902084.

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