Hostname: page-component-77c89778f8-sh8wx Total loading time: 0 Render date: 2024-07-18T09:37:03.476Z Has data issue: false hasContentIssue false
  • English
  • Français

Mass Distributions in Elliptical Galaxies at Large Radii

Published online by Cambridge University Press:  04 August 2017

Craig L. Sarazin
Craig L. Sarazin*
Affiliation:
Department of Astronomy, University of Virginia, Charlottesville, VA 22903 and Joint Institute for Laboratory Astrophysics, University of Colorado and National Bureau of Standards, Boulder, CO 80309

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Recently, x-ray observations have shown that elliptical galaxies generally contain large quantities of hot gas. Central dominant cluster ellipticals have even more gas, which they have accreted from the surrounding clusters. The mass distributions in these galaxies can be derived from the condition of hydrostatic equilibrium. M87, the best studied central dominant galaxy, has a massive, dark halo with a total mass of about 4 × 1012 M⊙ within a radius of 300 kpc. The total mass-to-light ratio within this radius is at least 150 M⊙/L⊙. The x-ray observations of normal ellipticals also strongly suggest that they have heavy haloes, although the distribution of the mass is much less certain than in M87.

Type
Invited Reviews
Information
Symposium - International Astronomical Union , Volume 127: Structure and Dynamics of Elliptical Galaxies , 1987 , pp. 179 - 188
Copyright
Copyright © Reidel 1987 

References

REFERENCES

Bahcall, J. N., and Sarazin, C. L.: 1977, Ap. J. (Letters) 199, L89.Google Scholar
Binney, J., and Cowie, L.: 1981, Ap. J. 247, 464.Google Scholar
Canizares, C. R.: 1987, in Proceedings of IAU Symposium No. 117: Dark Matter in the Universe, edited by Kormendy, J. and Knapp, G., in press.Google Scholar
Fabian, A. C.: 1987, in Proceedings of IAU Symposium No. 117: Dark Matter in the Universe, edited by Kormendy, J. and Knapp, G., in press.Google Scholar
Fabian, A. C., Hu, E. M., Cowie, L. L., and Grindlay, J.: 1981, Ap. J. 248, 47.Google Scholar
Fabian, A. C., Nulsen, P. E., and Canizares, C. R.: 1984, Nature 310, 733.Google Scholar
Fabian, A. C., Thomas, P. A., Fall, S. M., and White, R. E.: 1986, preprint.Google Scholar
Fabricant, D., and Gorenstein, P.: 1983, Ap. J. 267, 535.Google Scholar
Fabricant, D., Lecar, M., and Gorenstein, P.: 1980, Ap. J. 241, 552.Google Scholar
Fabricant, D., Rybicki, G., and Gorenstein, P.: 1984, Ap. J. 286, 186.Google Scholar
Forman, W., Jones, C., and Tucker, W.: 1985, Ap. J. 293, 102.Google Scholar
Kriss, G. A., Cioffi, D., and Canizares, C. R.: 1983, Ap. J. 272, 439.Google Scholar
Malumuth, E. M., and Kriss, G. A.: 1986, preprint.Google Scholar
Mathews, W. G.: 1978, Ap. J. 219, 413.Google Scholar
Mathews, W. G., and Baker, J. C.: 1971, Ap. J. 170, 241.Google Scholar
Matilsky, T., Jones, C., and Forman, W.: 1985, Ap. J. 291, 621.Google Scholar
Nulsen, P. E., Stewart, G. C., and Fabian, A. C.: 1984, M.N.R.A.S. 208, 185.CrossRefGoogle Scholar
Rubin, V. C., Ford, W. K., and Thonnard, N.: 1980, Ap. J. 238, 471.Google Scholar
Sarazin, C. L.: 1986a, Rev. Mod. Phys. 58, 1.Google Scholar
Sarazin, C. L.: 1987, in Proceedings of IAU Symposium No. 117: Dark Matter in the Universe, edited by Kormendy, J. and Knapp, G., in press.Google Scholar
Sarazin, C. L.: 1986b, in Proceedings of the Greenbank Workshop on Gaseous Haloes and Galaxies. edited by Bregman, J. and Lockman, F., in press.Google Scholar
Sarazin, C. L., and Bahcall, J. N.: 1977, Ap. J. Suppl. 34, 451.Google Scholar
Sarazin, C. L., and White, R. E.: 1986, preprint.Google Scholar
Sargent, W. L., Young, P. J., Boksenberg, A., Shortridge, K., Lynds, C. R., and Hartwick, F. D.: 1978, Ap. J. 221, 731.Google Scholar
Stewart, G. C., Canizares, C. R., Fabian, A. C., and Nulsen, P. E.: 1984, Ap. J. 278, 536.Google Scholar
Strimpel, O., and Binney, J.: 1979, M.N.R.A.S. 188, 883.CrossRefGoogle Scholar
Thomas, P. A., Fabian, A. C., Arnaud, K. A., Forman, W., and Jones, C.: 1986, preprint.Google Scholar
Tonry, J. L.: 1983, Ap. J. 266, 58.Google Scholar
Trinchieri, G., and Fabbiano, G.: 1985, Ap. J. 296, 447.CrossRefGoogle Scholar
Trinchieri, G., Fabbiano, G., and Canizares, C. R.: 1986, preprint.Google Scholar
White, R. E., and Chevalier, R. A.: 1984, Ap. J. 280, 561.Google Scholar