A Direct Empirical Proof of the Existence of Dark Matter Metadata

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  • Main Title A Direct Empirical Proof of the Existence of Dark Matter


  • Author: Clowe, Douglas
    Creator Type: Personal
  • Author: Bradac, Marusa
    Creator Type: Personal
  • Author: Gonzalez, Anthony H.
    Creator Type: Personal
  • Author: Markevitch, Maxim
    Creator Type: Personal
  • Author: Randall, Scott W.
    Creator Type: Personal
  • Author: Jones, Christine
    Creator Type: Personal
  • Author: Zaritsky, Dennis
    Creator Type: Personal


  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization


  • Name: Stanford Linear Accelerator Center
    Place of Publication: [Menlo Park, California]
    Additional Info: SLAC


  • Creation: 2006-09-27


  • English


  • Content Description: We present new weak lensing observations of 1E0657-558 (z = 0.296), a unique cluster merger, that enable a direct detection of dark matter, independent of assumptions regarding the nature of the gravitational force law. Due to the collision of two clusters, the dissipationless stellar component and the fluid-like X-ray emitting plasma are spatially segregated. By using both wide-field ground based images and HST/ACS images of the cluster cores, we create gravitational lensing maps which show that the gravitational potential does not trace the plasma distribution, the dominant baryonic mass component, but rather approximately traces the distribution of galaxies. An 8{sigma} significance spatial offset of the center of the total mass from the center of the baryonic mass peaks cannot be explained with an alteration of the gravitational force law, and thus proves that the majority of the matter in the system is unseen.


  • Keyword: Plasma Astrophysics,Astro
  • Keyword: Nonluminous Matter
  • Keyword: Galaxies
  • Keyword: Detection
  • STI Subject Categories: 71 Classical And Quantum Mechanics, General Physics
  • Keyword: Astrophysics,Astro
  • Keyword: Distribution


  • Journal Name: Submitted to Astrophysical Journal Letters


  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI


  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article


  • Text


  • Report No.: SLAC-PUB-12078
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 892648
  • Archival Resource Key: ark:/67531/metadc882596


  • Display Note: http://www.slac.stanford.edu/cgi-wrap/pubpage?slac-pub-12078.html