Astrophysics and Space Science

, Volume 91, Issue 1, pp 93–98 | Cite as

Mass model of spiral galaxies disk

  • R. Louise
  • M. Marcelin
Article

Abstract

The study of rotation curves is the most powerful tool for determining mass distributions inside spiral galaxies. Since the first trial by Burbidgeet al. (1959), followed by Brandt (1960), few methods have been proposed for the determination of the masses of galaxies (Faber and Gallagher, 1979). Monnet and Simien (1977) recently proposed a method based on a two component model (bulge and disk) which permits to compute the total mass providing that the photometry is well-known. We suggest here a method based on a new simple parametrization of the optical rotation curve. This method indicates disk masses substantially higher than the provious estimates and suggests an exponential increase of theM/L ratio in the disk toward the outer parts of the Galaxies.

Keywords

Total Mass Mass Distribution Component Model Outer Part Optical Rotation 

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References

  1. Bosma, A. and van der Kruit, P. C.: 1979,Astron. Astrophys. 79, 281.Google Scholar
  2. Brandt, J. C.: 1960,Astrophys. J. 131, 293.Google Scholar
  3. Burbidge, E. M., Burbidge, G. R., and Prendergast, K. A.: 1959,Astrophys. J. 130, 739.Google Scholar
  4. Carozzi, N.: 1976a,Astron. Astrophys. 49, 425.Google Scholar
  5. Carozzi, N.: 1976b,Astron. Astrophys. 49, 431.Google Scholar
  6. Carozzi, N.: 1978,Astron. Astrophys. 63, 415.Google Scholar
  7. Comte, G., Monnet, G., and Rosado, M.: 1979,Astron. Astrophys. 72, 73.Google Scholar
  8. Faber, S. M. and Gallagher, J. S.: 1979,Ann. Rev. Astron. Astrophys. 17, 135.Google Scholar
  9. Kormendy, J.: 1977,Astrophys. J. 217, 406.Google Scholar
  10. Marcelin, M., Boulesteix, J., and Courtès, G.: 1982a,Astron. Astrophys. 108, 134.Google Scholar
  11. Marcelin, M., Boulesteix, J., Courtès, G., and Milliard, B.: 1982b,Nature 297, 38.Google Scholar
  12. Milliard, B. and Marcelin, M.: 1981,Astron. Astrophys. 95, 59.Google Scholar
  13. Monnet, G. and Simien, F.: 1977,Astron. Astrophys. 56, 173.Google Scholar
  14. Peton, A.: 1982,Astron. Astrophys. 114, 1.Google Scholar
  15. Rohlfs, K. and Kreitschmann, J.: 1981,Astrophys. Space Sci. 79, 289.Google Scholar
  16. Toomre, A.: 1964,Astrophys. J. 139, 1217.Google Scholar

Copyright information

© D. Reidel Publishing Co. 1983

Authors and Affiliations

  • R. Louise
    • 1
  • M. Marcelin
    • 1
  1. 1.Observatoire de MarseilleMarseilleFrance

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