Probing intermediate Seyfert galaxies by paβ spectroscopy

Hans Walter Rix, N. P. Carleton, George Rieke, Marcia Rieke

Research output: Contribution to journalArticlepeer-review

45 Scopus citations


We present high-resolution spectroscopy at Paβ of a sample of nearby Seyfert galaxies. These objects have been selected because of their observed steep Balmer decrements. We demonstrate the usefulness of Paβ in untangling whether dust obscuration or radiative transfer effects cause the large observed Hα/Hβ ratio and find that either mechanism can be dominant. In the cases where dust obscuration is present we find that the dereddened line strengths, relative to the hard X-ray flux, coincide with those found in unreddened objects. We propose a model for the dust distribution which accounts naturally for the frequency of severely reddened AGNs and their amount of reddening.

Original languageEnglish (US)
Pages (from-to)480-487
Number of pages8
JournalAstrophysical Journal
Issue number2
StatePublished - Nov 10 1990


  • Galaxies: Seyfert

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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