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Structure and dynamics of barred spiral galaxies with an asymmetric mass distribution

Published online by Cambridge University Press:  14 August 2015

G. De Vaucouleurs  and
K. C. Freeman
G. De Vaucouleurs
Affiliation:
University of Texas, Austin, Tex., U.S.A.
K. C. Freeman
Affiliation:
Australian National University, Canberra, Australia

Abstract

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The asymmetric structure and dynamics of late-type barred spirals is analyzed in terms of a model consisting of a small prolate spheroid (the bar) displaced from the center of a large oblate spheroid (the disk). The non-axisymmetric motions predicted for this model are in remarkable agreement with optical and radio observations of internal motions in several magellanic barred spirals, including NGC 4027 and the Large Cloud. In particular, the model explains the displacement of the apparent center of the rotation curve from the center of the bar.

Information

Type
Part III/Theory of Spiral Structure
Information
Symposium - International Astronomical Union , Volume 38: The Spiral Structure of our Galaxy , 1970 , pp. 356 - 362
Copyright
Copyright © Reidel 1970 

References

Beale, J. S. and Davies, R. D.: 1969, Nature 221, 531.CrossRefGoogle Scholar
Bertola, F.: 1967, Mem. Soc. Astron. Ital. 38, No. 2.Google Scholar
Crillon, R. and Monnet, G.: 1969, Astron. Astrophys. 2, 1.Google Scholar
Feast, M. W.: 1964, Monthly Notices Roy. Astron. Soc. 127, 195.CrossRefGoogle Scholar
Gordon, K. J.: 1969, University of Michigan dissertation.Google Scholar
Kerr, F. J. and Vaucouleurs, G. de: 1955, Australian J. Phys. 8, 508.CrossRefGoogle Scholar
Perek, L.: 1948, Contr. Astron. Inst. Masaryk 1, No. 6.Google Scholar
Perek, L. 1962, Adv. Astron. Astrophys. 1, 165.CrossRefGoogle Scholar
Roberts, M. S.: 1968, Astrophys. J. 151, 117.CrossRefGoogle Scholar
Robinson, B. J. and Van Damme, K. J.: 1966, Australian J. Phys. 19, 111.Google Scholar
Vaucouleurs, G. de: 1959a, Astrophys. J. 130, 728.Google Scholar
Vaucouleurs, G. de: 1959b, Handbuch der Physik 53, 275.Google Scholar
Vaucouleurs, G. de: 1960, Astrophys. J. 131, 265.CrossRefGoogle Scholar
Vaucouleurs, G. de: 1961a, Astrophys. J. 133, 405.CrossRefGoogle Scholar
Vaucouleurs, G. de: 1961b, Amer. Phil. Soc. Yearbook 1961, p. 268.Google Scholar
Vaucouleurs, G. and de, A.: 1963, Astrophys. J. 137, 363.Google Scholar
Vaucouleurs, G. de and Freeman, K. C.: 1970, Vistas in Astronomy, in press.Google Scholar
Vaucouleurs, G. and de, A. and Freeman, K. C.: 1968, Monthly Notices Roy. Astron. Soc. 139, 425.CrossRefGoogle Scholar