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Compressive Effects on the Galactic Globular Clusters by Gravitational Disk-Shocking

Published online by Cambridge University Press:  25 May 2016

Masaaki Shimada
Masaaki Shimada*
Affiliation:
Department of Astronomy, Kyoto University, Kyoto 606-01, Japan

Extract

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What is our problem? Observed figures of the Galactic globular clusters are somewhat elliptic in many cases. For not a few clusters (e.g. 23 of 72), the observed ellipticities (Shawl & White 1987) are ≥ 0.1 within ~ 2rh. By a series of numerical experiments, we study whether or not tidal force from the Galactic disk can produce the observed ellipticities in such an inner region (Shimada 1996)

Type
Local Group
Information
Symposium - International Astronomical Union , Volume 186: Galaxy Interactions at High and Low Redshift , 1999 , pp. 56
Copyright
Copyright © Kluwer 1999 

References

Shawl, S.J. and White, R.E. 1987, Ap J, 317, 246 Google Scholar
Shimada, M. 1996, Prog. Theor. Phys., 96, 537 CrossRefGoogle Scholar
Hernquist, L. and Ostriker, J.P. 1992, Ap J, 386, 375 CrossRefGoogle Scholar
Einsel, Ch. and Spurzem, R. 1997, astro-ph/9704284 Google Scholar