Browsing Articles by Subject "Dark matter (Astronomy)"

Browsing Articles by Subject "Dark matter (Astronomy)"

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  • Richardson, Mark L. A.; Scannapieco, Evan; Thacker, Robert John, 1970- (American Astronomical Society, 2013-07-10)
    In the early universe, substantial relative “stream” velocities between the gas and dark matter arise due to radiation pressure and persist after recombination. To assess the impact of these velocities on high-redshift ...

  • Sembolini, Federico; Yepes, Gustavo; Pearce, Frazer R.; Knebe, Alexander; Kay, Scott T.; Power, Chris; Cui, Weiguang; Beck, Alexander M.; Borgani, Stefano; Vecchia, Claudio Dalla; Thacker, Robert John, 1970- (Oxford University Press, 2016-04-21)
    We have simulated the formation of a galaxy cluster in a [lambda] cold dark matter universe using 13 different codes modelling only gravity and non-radiative hydrodynamics (RAMSES, ART, AREPO, HYDRA and nine incarnations ...

  • Elahi, Pascal J.; Thacker, Robert John, 1970-; Widrow, Lawrence M. (Wiley-Blackwell, 2011-11)
    We describe a new algorithm for finding substructures within dark matter haloes from N-body simulations. The algorithm relies upon the fact that dynamically distinct substructures in a halo will have a local velocity ...

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