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Date and Time of the Query: 2019-06-19 T14:39:55 PDT
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For refcode 2001ApJ...562L..29C:
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2001ApJ...562L..29C On the Nature of Intrinsic Absorption in Reddened Seyfert 1 Galaxies D. M. Crenshaw Department of Physics and Astronomy, Georgia State University, Atlanta, GA 30303; crenshaw@chara.gsu.edu and S. B. Kraemer Catholic University of America and Laboratory for Astronomy and Solar Physics, NASA Goddard Space Flight Center, Code 681, Greenbelt, MD 20771; stiskraemer@yancey.gsfc.nasa.gov Received 2001 July 13; accepted 2001 October 9; published 2001 October 26 ABSTRACT We discuss the origin of the "dusty lukewarm absorber," which we previously identified in the reddened Seyfert 1 galaxies NGC 3227 and Akn 564. This absorber is characterized by saturated UV absorption lines (C IV, N V) near the systemic velocity of the host galaxy and is likely responsible for reddening both the continuum and emission lines (including those from the narrow-line region) from these Seyfert galaxies. From a large sample of Seyfert 1 galaxies, we find that continuum reddening (as measured by UV color) tends to increase with inclination of the host galaxy. Furthermore, reddened inclined Seyfert galaxies observed at moderate to high spectral resolution all show evidence for dusty lukewarm absorbers. We suggest that these absorbers lie in the plane of the host galaxy at distances of >~100 pc from the nucleus and are physically distinct from the majority of intrinsic absorbers that are outflowing from the nucleus. Subject headings: galaxies: Seyfert - ultraviolet: galaxies - X-rays: galaxies
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