Volume 467, Number 3, June I 2007
|Page(s)||933 - 941|
|Section||Cosmology (including clusters of galaxies)|
|Published online||19 March 2007|
The very local Hubble flow: simulating the transition from chaos to order
Tuorla Observatory, Turku University, Piikkiö, 21 500, Finland
2 Sternberg Astronomical Institute, Moscow University, Moscow, 119899, Russia
3 Special Astrophysical Observatory, Nizhnii Arkhys, 369167, Russia
4 University of West Indies, Trinidad and Tobago
5 Isaac Newton Institute of Chile, SAO Branch, Russia
Accepted: 29 January 2007
The physical nature of the very local (<3 Mpc) Hubble flow is studied on the basis of the recent high-precision observations in the Local Volume. A model including both analytical treatment and computer simulations describes the flow's dynamical evolution from a chaotic Little Bang initial state to the present-day state of a quasi-regular expansion. The dynamical effect of the uniform cosmic vacuum (time-independent dark energy or the cosmological constant) is taken into account.
Key words: galaxies: Local Group
© ESO, 2007
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