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  1. verse within 20 Mpc. The local environment systematically distorts the shape and amplitude of velocity statistics with respect to ensemble-averaged measurements made by a Copernican (random) observer. The Virgo cluster has the most significant impact, introducing large sys-tematic deviations in all the statistics.
    Author:Wojciech A. Hellwing, Adi Nusser, Martin Feix, Maciej BilickiPublished:2017
  2. We assess the effect of the local large scale structure on the estimation of two-point statistics of the observed radial peculiar velocities of galaxies. A large N-body simulation is used to examine these statistics from the perspective of random observers as well as "Local Group (LG)-like" observers conditioned to reside in an environment resembling the observed universe within 20 Mpc. The ...
    Author:Wojciech A. Hellwing, Adi Nusser, Martin Feix, Maciej BilickiPublished:2017
  3. scholarlypublications.universiteitleiden.nl

    Velocity statistics for LG-like observers 2789 Universe (Local Group).2 Hence, we need to limit ourselves to only the radial component of the peculiar velocity field, which is a projection of the full 3D velocity vectors on to the line of sight connecting an observer with an object in question.
    Author:Wojciech A. Hellwing, Adi Nusser, Martin Feix, Maciej BilickiPublished:2017
  4. ar5iv.labs.arxiv.org

    Not a Copernican observer: biased peculiar velocity statistics in the local Universe. Wojciech A. Hellwing 1,2, Adi Nusser 3, Martin Feix 4 and Maciej Bilicki 5,2 ... WAH acknowledges support from European Research Council (grant number 646702 "CosTesGrav"). WAH and MB were also supported by the Polish National Science Center under contract ...
  5. researchportal.port.ac.uk

    A large N-body simulation is used to examine these statistics from the perspective of random observers as well as "Local Group (LG)-like" observers conditioned to reside in an environment resembling the observed universe within 20 Mpc. The local environment systematically distorts the shape and amplitude of velocity statistics with respect to ...
  6. researchgate.net

    Independently of the estimator of the dispersion, a peculiar velocity of ∼640 km s −1 appears to be rather likely in both the local universe and the local volume around [KKS2000]04, and is ...
  7. ieeexplore.ieee.org

    We assess the effect of the local large-scale structure on the estimation of two-point statistics of the observed radial peculiar velocities of galaxies. A large N-body simulation is used to examine these statistics from the perspective of random observers as well as 'Local Group-like' observers conditioned to reside in an environment resembling the observed Universe within 20 Mpc. The ...
  8. academia.edu

    Not a Copernican observer: biased peculiar velocity statistics in the local Universe . × Close Log In. Log in with Facebook Log in with Google. or. Email. Password. Remember me on this computer. or reset password. Enter the email address you signed up with and we'll email you a reset link. ...
  9. peculiar velocity statistics are those expected around a typical (aka Copernican) observer in a ΛCDM universe. Such an observer should in fact not observe a bulk flow exceeding ∼200 kms− 1beyond 100 h−Mpc (z ≃0.033), independently of the form of the matter power spectrum [31], so clearly this assumption is in tension with reality. In ...

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