Neutral Hydrogen Absorption against the Radio Galaxy 3C 293 and the LIRG NGC 6240

R. J. Beswick; A. Pedlar; Carole G. Mundell; Jack F. Gallimore; A. B. Peck; G. B. Taylor; A. J. Holloway

Neutral Hydrogen Absorption against the Radio Galaxy 3C 293 and the LIRG NGC 6240

R. J. Beswick, A. Pedlar, Carole G. Mundell, Jack F. Gallimore, A. B. Peck, G. B. Taylor, A. J. Holloway

Department of Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Supermassive black holes are thought to be ubiquitous in bulge-dominated galaxies and the standard model of Active Galactic Nuclei (AGN) invokes the release of gravitational energy due to accretion of material onto a central black hole. What determines the presence and degree of nuclear activity, however, remains an unanswered question. Unlike quasar activity, which seems to coincide with the build-up of galactic-size structures, activity in nearby AGN with well-established host galaxies, must involve re-activation of their central black holes. Neutral hydrogen (HI) is a key tracer of galactic structure and dynamics and responds most readily to perturbations caused by tidal disturbance and non-axisymetric gravitational potentials - perturbations which have been mooted as possible triggers of nuclear activity. I present here an HI imaging study of a heterogeneous sample of nine nearby Seyfert galaxies and describe plans for a new HI survey which aims to investigate the role of the host gas in triggering and fuelling of nuclear activity on a statistical basis.

Original language	English
Title of host publication	Active Galactic Nuclei: from Central Engine to Host Galaxy, 2002
Editors	S. Collin, F. Combes, I. Shlosman
Publisher	Astronomical Society of the Pacific
Pages	481
ISBN (Print)	9781583811351
Publication status	Published - 31 Dec 2003
Event	Active Galactic Nuclei: from Central Engine to Host Galaxy, 2002 - Meudon, France Duration: 23 Jul 2002 → 27 Jul 2002

Publication series

Name	Astronomical Society of the Pacific Conference Series
Volume	290

Other

Other	Active Galactic Nuclei: from Central Engine to Host Galaxy, 2002
Country	France
City	Meudon
Period	23/07/02 → 27/07/02

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Cite this

Beswick, R. J., Pedlar, A., Mundell, C. G., Gallimore, J. F., Peck, A. B., Taylor, G. B., & Holloway, A. J. (2003). Neutral Hydrogen Absorption against the Radio Galaxy 3C 293 and the LIRG NGC 6240. In S. Collin, F. Combes, & I. Shlosman (Eds.), Active Galactic Nuclei: from Central Engine to Host Galaxy, 2002 (pp. 481). (Astronomical Society of the Pacific Conference Series; Vol. 290). Astronomical Society of the Pacific.

Neutral Hydrogen Absorption against the Radio Galaxy 3C 293 and the LIRG NGC 6240. / Beswick, R. J.; Pedlar, A.; Mundell, Carole G.; Gallimore, Jack F.; Peck, A. B.; Taylor, G. B.; Holloway, A. J.

Active Galactic Nuclei: from Central Engine to Host Galaxy, 2002. ed. / S. Collin; F. Combes; I. Shlosman. Astronomical Society of the Pacific, 2003. p. 481 (Astronomical Society of the Pacific Conference Series; Vol. 290).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Beswick, RJ, Pedlar, A, Mundell, CG, Gallimore, JF, Peck, AB, Taylor, GB & Holloway, AJ 2003, Neutral Hydrogen Absorption against the Radio Galaxy 3C 293 and the LIRG NGC 6240. in S Collin, F Combes & I Shlosman (eds), Active Galactic Nuclei: from Central Engine to Host Galaxy, 2002. Astronomical Society of the Pacific Conference Series, vol. 290, Astronomical Society of the Pacific, pp. 481, Active Galactic Nuclei: from Central Engine to Host Galaxy, 2002, Meudon, France, 23/07/02.

Beswick RJ, Pedlar A, Mundell CG, Gallimore JF, Peck AB, Taylor GB et al. Neutral Hydrogen Absorption against the Radio Galaxy 3C 293 and the LIRG NGC 6240. In Collin S, Combes F, Shlosman I, editors, Active Galactic Nuclei: from Central Engine to Host Galaxy, 2002. Astronomical Society of the Pacific. 2003. p. 481. (Astronomical Society of the Pacific Conference Series).

Beswick, R. J. ; Pedlar, A. ; Mundell, Carole G. ; Gallimore, Jack F. ; Peck, A. B. ; Taylor, G. B. ; Holloway, A. J. / Neutral Hydrogen Absorption against the Radio Galaxy 3C 293 and the LIRG NGC 6240. Active Galactic Nuclei: from Central Engine to Host Galaxy, 2002. editor / S. Collin ; F. Combes ; I. Shlosman. Astronomical Society of the Pacific, 2003. pp. 481 (Astronomical Society of the Pacific Conference Series).

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abstract = " Supermassive black holes are thought to be ubiquitous in bulge-dominated galaxies and the standard model of Active Galactic Nuclei (AGN) invokes the release of gravitational energy due to accretion of material onto a central black hole. What determines the presence and degree of nuclear activity, however, remains an unanswered question. Unlike quasar activity, which seems to coincide with the build-up of galactic-size structures, activity in nearby AGN with well-established host galaxies, must involve re-activation of their central black holes. Neutral hydrogen (HI) is a key tracer of galactic structure and dynamics and responds most readily to perturbations caused by tidal disturbance and non-axisymetric gravitational potentials - perturbations which have been mooted as possible triggers of nuclear activity. I present here an HI imaging study of a heterogeneous sample of nine nearby Seyfert galaxies and describe plans for a new HI survey which aims to investigate the role of the host gas in triggering and fuelling of nuclear activity on a statistical basis. ",

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N2 - Supermassive black holes are thought to be ubiquitous in bulge-dominated galaxies and the standard model of Active Galactic Nuclei (AGN) invokes the release of gravitational energy due to accretion of material onto a central black hole. What determines the presence and degree of nuclear activity, however, remains an unanswered question. Unlike quasar activity, which seems to coincide with the build-up of galactic-size structures, activity in nearby AGN with well-established host galaxies, must involve re-activation of their central black holes. Neutral hydrogen (HI) is a key tracer of galactic structure and dynamics and responds most readily to perturbations caused by tidal disturbance and non-axisymetric gravitational potentials - perturbations which have been mooted as possible triggers of nuclear activity. I present here an HI imaging study of a heterogeneous sample of nine nearby Seyfert galaxies and describe plans for a new HI survey which aims to investigate the role of the host gas in triggering and fuelling of nuclear activity on a statistical basis.

AB - Supermassive black holes are thought to be ubiquitous in bulge-dominated galaxies and the standard model of Active Galactic Nuclei (AGN) invokes the release of gravitational energy due to accretion of material onto a central black hole. What determines the presence and degree of nuclear activity, however, remains an unanswered question. Unlike quasar activity, which seems to coincide with the build-up of galactic-size structures, activity in nearby AGN with well-established host galaxies, must involve re-activation of their central black holes. Neutral hydrogen (HI) is a key tracer of galactic structure and dynamics and responds most readily to perturbations caused by tidal disturbance and non-axisymetric gravitational potentials - perturbations which have been mooted as possible triggers of nuclear activity. I present here an HI imaging study of a heterogeneous sample of nine nearby Seyfert galaxies and describe plans for a new HI survey which aims to investigate the role of the host gas in triggering and fuelling of nuclear activity on a statistical basis.

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BT - Active Galactic Nuclei: from Central Engine to Host Galaxy, 2002

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