Volume 88, Number 4, November 2009
|Number of page(s)||6|
|Section||Geophysics, Astronomy and Astrophysics|
|Published online||02 December 2009|
Gravitational hydrodynamics of large-scale structure formation
Institute for Theoretical Physics - Valckenierstraat 65, 1018 XE Amsterdam, The Netherlands, EU
2 Mechanical and Aerospace Engineering & Scripps Institution of Oceanography Departments, UCSD La Jolla, CA 92093, USA
3 Harvard-Smithsonian Center for Astrophysics - 60 Garden Street, Cambridge, MA 02138, USA
Accepted: 26 October 2009
The gravitational hydrodynamics of the primordial plasma with neutrino hot dark matter is considered as a challenge to the bottom-up cold-dark-matter paradigm. Viscosity and turbulence induce a top-down fragmentation scenario before and at decoupling. The first step is the creation of voids in the plasma, which expand to 37 Mpc on the average now. The remaining matter clumps turn into galaxy clusters. At decoupling galaxies and Jeans clusters arise; the latter constitute the galactic dark-matter halos and consist themselves of earth mass milli brown dwarfs. Frozen milli brown dwarfs are observed in microlensing and white-dwarf-heated ones in planetary nebulae. The approach explains the Tully-Fisher and Faber-Jackson relations, and cosmic microwave background temperature fluctuations of sub-milli-kelvins.
PACS: 98.80.Bp – Origin and formation of the Universe / 95.35.+d – Dark matter (stellar, interstellar, galactic, and cosmological) / 98.20.Jp – Globular clusters in external galaxies
© EPLA, 2009
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.