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arXiv · astro-ph/9310040

How Unusual is the Locally Quiet Hubble Flow?

David Schlegel·Marc Davis·Frank Summers·Jon A. Holtzman
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Abstract

The local galaxy distribution offers an interesting constraint to cosmological models of structure formation. The galaxies are distributed in a long, filamentary structure, presumably the result of large amplitude gravitational instability, yet the local velocity field is cold. In particular, there are no blueshifted galaxies within 5h^-1 Mpc except those within the Local Group radius of 1h^-1 Mpc. Using numerical simulations we demonstrate that such a situation is extremely rare for an observer in Omega=1 CDM models, but is not uncommon in mixed dark matter (MDM) models that include massive neutrinos.

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David Schlegel, Marc Davis, Frank Summers, Jon A. Holtzman. 1993-10-22. How Unusual is the Locally Quiet Hubble Flow?. https://doi.org/10.1086/174164

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