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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

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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

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