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Cold Gas Near Active Galactic Nuclei

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Physics of Active Galactic Nuclei at all Scales

Part of the book series: Lecture Notes in Physics ((LNP,volume 693))

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Abstract

Active galactic nuclei (AGNs) are identi.ed mainly by the properties of visibly hot gas located within the nucleus (e.g., line emitting regions, UV – X-ray emission from the accretion disk) or without (e.g., radio lobes of relativistic plasma). Colder gas and dust however play an important role in the standard model for AGNs. Firstly, there are arguments that the (relatively) cold ISM from either the host galaxy or a cannibalized companion ultimately provides the fuel for the AGN. Secondly, apropos of AGN unifying schemes [1], the cold, potentially fueling gas can obscure the hot, innermost regions, at least along some sight-lines, affecting the apparent properties of the AGN.

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Author information

Authors and Affiliations

  1. Department of Physics and Astronomy, Bucknell University, Moore Avenue, Lewisburg, PA, 17837, USA

    J.F. Gallimore

  2. Department of Physics and Astronomy, University of Kentucky, 600 Rose Street, Lexington, KY, 40506-0055, USA

    M. Elitzur

  3. Center for Imaging Science, Rochester Institute of Technology, 54 Lomb Memorial Drive, Rochester, NY, 14623, USA

    S.A. Baum

Authors
  1. J.F. Gallimore
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  2. M. Elitzur
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  3. S.A. Baum
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Editor information

Editors and Affiliations

  1. CEA Saclay-Orme des Merisiers, 91191 Gif-sur-Yvette Cedex, France

    Danielle Alloin

  2. Department of Physics, Oxford University, Keble Road, Oxford, OX1 3RH, U.K.

    Rachel Johnson

  3. Department of Astronomy, University of Chile, Casilla 36D, Santiago, Chile

    Paulina Lira

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© 2006 Springer

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Gallimore, J., Elitzur, M., Baum, S. (2006). Cold Gas Near Active Galactic Nuclei. In: Alloin, D., Johnson, R., Lira, P. (eds) Physics of Active Galactic Nuclei at all Scales. Lecture Notes in Physics, vol 693. Springer, Berlin, Heidelberg . https://doi.org/10.1007/3-540-34621-X_4

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