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NGC 3227 - An Interacting Barred Spiral with an Active Nucleus

Published online by Cambridge University Press:  12 April 2016

C. G. Mundell ,
A. Pedlar ,
D. L. Shone ,
D. J. Axon ,
J. Meaburn  and
S. W. Unger
C. G. Mundell
Affiliation:
University of Manchester, Nuffield Radio Astronomy Laboratories, Jodrell Bank, Macclesfield, Cheshire SK11 9DL, U. K.
A. Pedlar
Affiliation:
University of Manchester, Nuffield Radio Astronomy Laboratories, Jodrell Bank, Macclesfield, Cheshire SK11 9DL, U. K.
D. L. Shone
Affiliation:
University of Manchester, Nuffield Radio Astronomy Laboratories, Jodrell Bank, Macclesfield, Cheshire SK11 9DL, U. K.
D. J. Axon
Affiliation:
STScI, 3700 San Martin Drive, Baltimore, MD 21218
J. Meaburn
Affiliation:
University of Manchester, Department of Astronomy, Manchester M13 9PL, U.K.
S. W. Unger
Affiliation:
Royal Greenwich Observatory, Madingly Rd., Cambridge CB3 0EZ, U.K.

Extract

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Recently, bars have become a favored mechanism for transporting material at larger radii towards the nuclei of active galaxies, with the possibility of inflowing gas (on kiloparsec scales) accumulating in circumnuclear rings, bar-like features or structures reminiscent of spiral arms. In addition, it seems clear that interactions play some role in the triggering and fuelling of nuclear activity, as well as in the formation and evolution of galactic bars. NGC 3227 is a barred Seyfert galaxy which appears to be interacting with the nearby elliptical galaxy NGC 3226. The NGC 3227 system thus appears to be an excellent ”laboratory case“ in which to study the relationship between the bar phenomenon, and an active nucleus in an interacting system.

Type
Posters of Part VII and Part VIII
Information
International Astronomical Union Colloquium , Volume 157: Barred Galaxies , 1996 , pp. 473 - 475
Copyright
Copyright © Astronomical Society of the Pacific 1996

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