The Shape of the Bulge from Iras Miras

  • Patricia Whitelock
  • Robin Catchpole
Part of the Astrophysics and Space Science Library book series (ASSL, volume 180)


The number distribution of Miras in the Bulge as a function of distance modulus indicates that the half of the Bulge which is at positive galactic longitude is closer to us than the other half. The observed stellar distribution can be modelled with a triaxial ellipsoidal distribution of stars which we refer to as a ‘bar’ which is tilted at roughly 45° to the line of sight. Furthermore this bar is rotating in a manner consistent with expectations from the kinematics of the galactic centre gas.


Globular Cluster Scale Height Stellar Evolution Interstellar Extinction Distance Modulus 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Binney, J., Gerhard, O. E., Stark, A. A., Bally, J. & Uchida, K. I.: 1991. Mon. Not. R. astr. Soc., 252, 210.ADSGoogle Scholar
  2. Blanco, V. M.: 1988. Astronom. J.,95, 1400.ADSCrossRefGoogle Scholar
  3. Blanco, V. M. & Terndrup, D. M.: 1989. Astronom. J., 98, 843.ADSCrossRefGoogle Scholar
  4. Blitz, L. & Spergel, D. N.: 1991. Astrophys. J., in press.Google Scholar
  5. de Vaucouleurs, G.: 1964. In The Galaxy and the Magellanic Clouds, IAU Sym. 20, Eds. F. J. Kerr & A. W. Rodgers, p. 195.Google Scholar
  6. Feast, M. W.: 1963. Mon. Not. R. astr. Soc., 125, 367.ADSGoogle Scholar
  7. Feast, M. W. & Whitelock, P. A.: 1987. In Late Stages of Stellar Evolution, Eds. S. Kwok & S. R. Pottasch, p 33. Dordrecht, Reidel.CrossRefGoogle Scholar
  8. Feast, M. W. & Whitelock, P. A.: 1990. In Bulges of Galaxies, ESO-CTIO Workshop, p. 3.Google Scholar
  9. Freeman, K. C.: 1990. In Dynamics and Interactions of Galaxies, Ed. R. Wielen, p.36.CrossRefGoogle Scholar
  10. Gerhard, O. E. & Vietri, M.: 1986. Mon. Not. R. astr. Soc., 223, 377.ADSGoogle Scholar
  11. Harmon, H. & Gilmore, G.: 1988. Mon. Not. R. astr. Soc., 235, 1025.ADSGoogle Scholar
  12. IRAS Point Source Catalogue: 1985. US Government Publication Office.Google Scholar
  13. Matsumoto, T., Hayakawa, S., Koizumi, H., Murakami, H., Uyama, K., Yamagami, T. & Thomas, J. A.: 1982. In The Galactic Centre, Eds. G. R. Riegler & R. D. Blandford, p. 48.Google Scholar
  14. Menzies, J. W.: 1990. In Bulges of Galaxies, ESO-CTIO Workshop, p. 115.Google Scholar
  15. Nakada, Y., Deguchi, S., Hashimoto, O., Izumiura, H., Onaka, T., Sekiguchi, K. & Yamamura, I.: 1991. Nature, 353,140.ADSCrossRefGoogle Scholar
  16. Terndrup, D. M.: 1988. Astronom. J., 96, 884.ADSCrossRefGoogle Scholar
  17. Whitelock, P. A.: 1990. In: Confrontation of Stellar Evolution and Pulsation Theory, Eds. C. Cacciari & G. Clementini, PASP Conf. Ser. p. 365.Google Scholar
  18. Whitelock, P. A., Feast, M. W. & Catchpole, R. M.: 1991, Mon. Not. R. astr. Soc., 248, 276.ADSGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 1992

Authors and Affiliations

  • Patricia Whitelock
    • 1
  • Robin Catchpole
    • 2
  1. 1.South African Astronomical ObservatorySouth Africa
  2. 2.Royal Greenwich ObservatoryCambridgeUK

Personalised recommendations