Hostname: page-component-586b7cd67f-l7hp2 Total loading time: 0 Render date: 2024-11-29T18:26:56.687Z Has data issue: false hasContentIssue false
  • English
  • Français

What May Superclusters Tell us About Galaxy Formation?

Published online by Cambridge University Press:  04 August 2017

Avishai Dekel
Avishai Dekel*
Affiliation:
California Institute of Technology and Yale University

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.

The structure and dynamical properties of superclusters (SC's) may help us distinguish between various scenarios for galaxy formation. N-body simulations and analytic estimates show that (contrary to a common belief) a nondissipative pancake scenario can explain the observed flattening of SC's. Then, the disk-halo structure of the Local SC (LSC) and its velocity field suggest that galaxies form before SC's and not necessarily as a result of a dissipative gas collapse to SC pancakes. A confrontation of the simulations with the data indicates that the LSC has collapsed along its short axis only after z~l.

Type
VII. Galaxy Formation
Information
Symposium - International Astronomical Union , Volume 100: Internal Kinematics and Dynamics of Galaxies , 1983 , pp. 387 - 388
Copyright
Copyright © Reidel 1983 

References

Dekel, A. 1982, Ap. J. Lett., 261 (Oct. 1); 1983a, Ap. J., 269 (Jan. 15); 1983b, in preparation; 1983c, in preparation.Google Scholar
Tully, R. B. 1981, Ap. J., 255, 1.Google Scholar
Zeldovich, Ya. B. 1970, Astr. Ap., 5, 84.Google Scholar