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The line-emitting gas in active galaxies - A probe of the nuclear engineThis paper reviews some of the basic questions regarding the structure of the engine powering active galactic nuclei (AGN), the nature of the interaction between the AGN and the host galaxy, and the origin and evolution of AGN. The study of the dynamics and physical characteristics of the line-emitting gas in these objects has proven fruitful in addressing many of these issues. Recent advances in optical and infrared detector technology combined with the development of superior ground-based instruments have produced efficient new tools for the study of the line-emitting gas on nuclear and Galactic scales. Programs which take advantage of two of these new techniques, Fabry-Perot imaging spectroscopy and infrared spectroscopy, are described in this paper. The origin of nuclear activity in galaxies is also addressed in a third project which aims at determining the nature of luminous infrared galaxies.
Document ID
19940034423
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Veilleux, Sylvain (National Optical Astronomy Observatories Tucson, AZ, United States)
Date Acquired
August 16, 2013
Publication Date
September 1, 1993
Publication Information
Publication: Astronomical Society of the Pacific, Publications
Volume: 105
Issue: 691
ISSN: 0004-6280
Subject Category
ASTROPHYSICS
Funding Number(s)
CONTRACT_GRANT: NSF AST-88-18900
CONTRACT_GRANT: NAS5-26555
Distribution Limits
Public
Copyright
Other