Infrared coronal line widths in type 1 Seyfert galaxies

E. Giannuzzo, G. H. Rieke, M. J. Rieke

Research output: Contribution to journalArticlepeer-review

14 Scopus citations


We present high-resolution observations of six Seyfert 1 galaxies in the 2 μm region. We detected the [Si vi] 1.96 μm coronal line in all the galaxies and analyzed its profile, finding it to be variable in width from object to object, from very narrow profiles (FWHM ∼ 300 km s-1) to profiles approaching the width of the broad lines. The coronal region seems to be placed differently in different galaxies, and in some cases the infrared coronal lines are useful as a probe of the structure of the broad-line region.

Original languageEnglish (US)
Pages (from-to)L5-L9
JournalAstrophysical Journal
Issue number1 PART 2
StatePublished - Jun 10 1995


  • Galaxies: Seyfert
  • Galaxies: active

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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