Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...300..658f&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 300, Jan. 15, 1986, p. 658-668.
Astronomy and Astrophysics
Astronomy
185
Iue, Seyfert Galaxies, Ultraviolet Astronomy, Chemical Composition, Continuous Spectra, Emission Spectra, H Lines, Lyman Spectra, Nonthermal Radiation, Photoionization, Ultraviolet Spectra, X Ray Spectra
Scientific paper
Nearly simultaneous optical and ultraviolet observations of several Seyfert 2 galaxies are presented. A mean optical to ultraviolet emission line spectrum for Seyfert 2 galaxies is determined, and these intensities are compared with predictions of photoionization models. The UV to X-ray nonthermal continuum which ionizes this gas is examined. The results suggest that an obscuring layer does not hide an underlying broad-line region, and that narrow-line objects such as Seyfert 2 and narrow-line radio galaxies are physically different from broad-line objects, at least in not having an inner broad-line region. The absence of extinction also distinguishes these classical Seyfert 2 galaxies from the narrow-line X-ray galaxies, which X-ray evidence suggests may be extinguished Seyfert 1 galaxies.
Ferland Gary J.
Osterbrock Donald E.
No associations
LandOfFree
IUE spectra and a resulting model of Seyfert 2 galaxies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with IUE spectra and a resulting model of Seyfert 2 galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and IUE spectra and a resulting model of Seyfert 2 galaxies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1844572