Infrared coronal line widths in type 1 Seyfert galaxies

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

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)
JournalAstrophysical Journal
Volume446
Issue number1 PART 2
StatePublished - Jun 10 1995

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Seyfert galaxies
galaxies
profiles
probe
probes
high resolution

Keywords

  • Galaxies: active
  • Galaxies: Seyfert

ASJC Scopus subject areas

  • Space and Planetary Science

Cite this

Infrared coronal line widths in type 1 Seyfert galaxies. / Giannuzzo, E.; Rieke, George H.; Rieke, Marcia J.

In: Astrophysical Journal, Vol. 446, No. 1 PART 2, 10.06.1995.

Research output: Contribution to journalArticle

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AU - Rieke, George H.

AU - Rieke, Marcia J

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N2 - 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.

AB - 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.

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KW - Galaxies: Seyfert

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