NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-08-18 T15:39:00 PDT
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For refcode 1995ApJ...446L...5G:
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1995ApJ...446L...5G INFRARED CORONAL LINE WIDTHS IN TYPE 1 SEYFERT GALAXIES E. GIANNUZZO Universita degli Studi di Bologna, via Zamboni 33, I-40126, Bologna, Italy G. H. RIEKE Steward Observatory and Department of Planetary Sciences, University of Arizona, Tucson, AZ 85721 AND M. J. RIEKE Steward Observatory, University of Arizona, Tucson, AZ 85721 Received 1994 November 18: accepted 1995 March 27 ABSTRACT We present high-resolution observations of six Seyfert 1 galaxies in the 2 micron region. We detected the [Si VI] 1.96 micron 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. Subject headings: galaxies: active galaxies: Seyfert
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