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Galactic Cepheid Kinematics as a Probe of Large Scale Non-Axisymmetry of the Galaxy

  • J. A. R. Caldwell (a1), C. Koen (a1), I. M. Avruch (a2), M. R. Metzger (a2), P. L. Schechter (a2) and M. J. Keane (a2)...

Abstract

We investigate whether the currently available Galactic Cepheid kinematic data can put interesting constraints on large scale low amplitude non-axisymmetry of the Galactic plane rotation pattern. In this connection we address the experimental design problem of where in the Galactic plane additional Cepheids would prove the most useful for the axisymmetric and the non-axisymmetric modeling of the kinematics.

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References

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Blitz, L., and Spergel, D. N. 1991, ApJ, 370, 205.
Caldwell, J. A. R., and Coulson, I. M. 1987, AJ, 93, 1090.
Caldwell, J. A. R., Avruch, I. M., Metzger, M. R., Schechter, P. L., and Keane, M. J. 1992, in: Variable Stars and Galaxies; symposium in honor of M. W. Feast, ASP Conference Series (in press).
Khuri, A. I., and Cornell, J. A. 1987, Response Surfaces: Designs and Analyses, Statistics: textbooks and monographs volume 81.
Kuijken, K., and Tremaine, S. 1991, in: Dynamics of Disk Galaxies, 71.
Whitelock, P. A. 1992, in: Variable Stars and Galaxies; symposium in honor of M. W. Feast, ASP Conference Series (in press).

Galactic Cepheid Kinematics as a Probe of Large Scale Non-Axisymmetry of the Galaxy

  • J. A. R. Caldwell (a1), C. Koen (a1), I. M. Avruch (a2), M. R. Metzger (a2), P. L. Schechter (a2) and M. J. Keane (a2)...

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