A near-infrared and optical study of X-ray selected Seyfert galaxies. II - Models and interpretation

Details A near-infrared and optical study of X-ray selected Seyfert galaxies. II - Models and interpretation A near-infrared and optical study of X-ray selected Seyfert galaxies. II - Models and interpretation

Oct 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...333....1m&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 333, Oct. 1, 1988, p. 1-13. NSERC-NSF-supported research.

Astronomy and Astrophysics

Astronomy

62

Infrared Astronomy, Infrared Sources (Astronomy), Near Infrared Radiation, Seyfert Galaxies, X Ray Sources, Astronomical Models, Astronomical Photometry, Galactic Structure, Line Spectra

Scientific paper

A model has been constructed which uses a Hubble-law growth curve, modified by a color-morphological type-aperture relation, to deconvolve multiaperture optical and near-IR photometry of Seyfert galaxies into the stellar and nonstellar nuclear emission. The model is applied to a homogeneous set of measurements of 16 type I Seyfert galaxies, and the resulting nonstellar spectra are classified into at least five distinct components. These include: (1) the 'blue bump' well-known from optical spectrophotometry, (2) a flat continuum which may or may not dominate the remainder of the optical region out to 1-1.5 micron and may reemerge in the far-IR or submillimeter, (3) nuclear line emission, (4) an IR component which rises steeply between 2 and 4 microns and continues past 10 microns, and (5) far-IR emission from the surrounding galaxy.

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