0.3 to 100 micron continua of Seyfert 1 galaxies

G. Fabbiano, M. Elvis, N. Carleton, S. P. Willner, A. Lawrence, M. J. Ward

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Using 1-20 micron ground-based IR observations, 100 and 60 micron IRAS fluxes and optical UBVR photometry, continua for a sample of 37 Seyfert 1 galaxies are found to be simply classified in three families by means of IR (60 micron/12 micron) and optical (1.2 micron/0.3 micron) colors. Class A galaxies are found to be nonreddened and to present no significant amount of cool dust or galaxy IRAS component, while Class B galaxies are reddened AGN. Class C galaxies are shown to be both reddened and contain large galaxy disk cool dust components.
Original languageEnglish
Title of host publication Continuum emission in active galactic nuclei; Proceedings of the Workshop, Tucson, AZ, January 11-14, 1986
Publication statusPublished - 31 Dec 1986


  • Continuous Spectra
  • Galactic Nuclei
  • Seyfert Galaxies
  • Spectrum Analysis
  • Ubv Spectra
  • Active Galactic Nuclei
  • Astronomical Photometry
  • Classifications
  • Red Shift

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