Hostname: page-component-78c5997874-fbnjt Total loading time: 0 Render date: 2024-11-16T15:31:40.955Z Has data issue: false hasContentIssue false
  • English
  • Français

Peculiar Gas Dynamics in the Starburst Galaxy NGC 253

Published online by Cambridge University Press:  25 April 2016

Bärbel Koribalski ,
John B. Whiteoak  and
Sally Houghton
Bärbel Koribalski
Affiliation:
Australia Telescope National Facility, CSIRO, PO Box 76, Epping, NSW 2121, Australia [email protected]
John B. Whiteoak
Affiliation:
Australia Telescope National Facility, CSIRO, PO Box 76, Epping, NSW 2121, Australia [email protected]
Sally Houghton
Affiliation:
Australia Telescope National Facility, CSIRO, PO Box 76, Epping, NSW 2121, Australia [email protected] School of Physics, University of New South Wales, NSW 2052, Australia
Get access Rights & Permissions [Opens in a new window]

Abstract

Here we present our first results of a study of the neutral hydrogen gas (HI) in the southern spiral galaxy NGC 253 with the Australia Telescope Compact Array. The relative proximity of NGC 253 makes it a very suitable object for detailed studies of large-scale, as well as nuclear, gas dynamics. Several peculiar features have been found. The HI distribution is asymmetric in the outer regions, probably as a result of the strong warping of the spiral arms. A bar associated with the disc, clearly visible in the optical and near-infrared, also reveals its signature in the neutral hydrogen gas. HI absorption measurements reveal unusual motions of the gas in the nuclear region which seem to indicate a fast-rotating ring of cold gas as well as outflow of gas. Similar features have been found in other starburst galaxies, such as M 82, NGC 1808 and NGC 4945, and are interpreted in terms of bar-induced gas dynamics and star formation.

Keywords

galaxiesindividual (NGC 253) — galaxiesactive — galaxiesISM — galaxieskinematics and dynamics
Type
Extragalactic
Information
Publications of the Astronomical Society of Australia , Volume 12 , Issue 1 , April 1995 , pp. 20 - 25
Copyright
Copyright © Astronomical Society of Australia 1995

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Antonucci, R. R. J., & Ulvestad, J. S. 1988, ApJ, 330, L97 Google Scholar
Beck, R., Hutschenreiter, G., & Wielebinski, R. 1982, A&A, 106, 112 Google Scholar
Canzian, B., Mundy, L. G., & Scoville, N. Z. 1988, ApJ, 333, 157 Google Scholar
Cadili, C. L., Holdaway, M.A., Ho, P.T.P., & De Pree, C. G. 1992, ApJ, 399, L59 Google Scholar
Clark, B. G. 1980, A&A, 89, 377 Google Scholar
Combes, F., Gottesman, S. T., & Weliachew, L. 1977, A&A, 59, 181 Google Scholar
de Vaucouleurs, G., de Vaucouleurs, A., Corwin, H.G. Jr., Buta, R. J., Paturel, G., & Fouqué, P. 1991, Third Reference Catalogue of Bright Galaxies (New York: Springer)Google Scholar
Dickey, J. M., Brinks, E., & Puche, D. 1992, ApJ, 385, 501 Google Scholar
Fabbiano, G., & Trinchieri, G. 1984, ApJ, 286, 491 Google Scholar
Forbes, D. A., & DePoy, D.L. 1992, A&A, 259, 97 Google Scholar
Forbes, D. A., Ward, M. J., Rotaciuc, V., Blietz, M., Genzel, R., Drapatz, S., van der Werf, P. P., & Krabbe, A. 1993, ApJ, 406, L11 Google Scholar
Gardner, F. F., & Whiteoak, J. B. 1974, Nature, 247, 526 CrossRefGoogle Scholar
Högbom, J. A. 1974, A&AS, 15, 417 Google Scholar
Koornneef, J. 1993, ApJ, 403, 581 Google Scholar
Koribalski, B. 1993, PhD Thesis, University of Bonn (Germany)Google Scholar
Koribalski, B., Dickey, J. M., & Mebold, U. 1993, ApJ, 402, L41 Google Scholar
Malin, D. F. 1981, Sky Telesc., 62, 216 Google Scholar
Pence, W. D. 1980, ApJ, 239, 54 Google Scholar
Pence, W.D. 1981, ApJ, 247, 473 Google Scholar
Pietsch, W. 1994, in Panchromatic View of Galaxies-Their Evolutionary Puzzle, ed. Hensler, G., Theis, C. & Gallagher, J. R. (Paris: Edition Frontières), 137 Google Scholar
Puche, D., Carignan, C., & van Gorkom, J. H. 1991, AJ, 101, 456 Google Scholar
Sandage, A. R., & Tammann, G. A. 1987, A Revised Shapley-Ames Catalog of Bright Galaxies, 2nd ed, Vol. 635 (Washington: Carnegie Institution)Google Scholar
Schulz, H., & Wegner, G. 1992, A&A, 266, 167 Google Scholar
Scoville, N. Z., Soifer, B.T., Neugebauer, G., Young, J. S., Matthews, K., & Yerka, J. 1985, ApJ, 289, 129 Google Scholar
Turner, B. E. 1985, ApJ, 299, 312 CrossRefGoogle Scholar
Weliachew, L., Fomalont, E.B., & Greisen, E. W. 1984, A&A, 137, 335 Google Scholar
Whiteoak, J.B., & Gardner, F. F. 1973, ApJ Lett., 15, 211 Google Scholar
Whiteoak, J.B., & Ott, M. 1995, in preparation Google Scholar