Gravitational detection of a low-mass dark satellite galaxy at cosmological distance

S. Vegetti (), D. J. Lagattuta, J. P. McKean, M. W. Auger, C. D. Fassnacht and L. V. E. Koopmans
Additional contact information
S. Vegetti: Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology
D. J. Lagattuta: University of California
J. P. McKean: ASTRON, Oude Hoogeveensedijk 4, 7991 PD Dwingeloo, The Netherlands
M. W. Auger: University of California
C. D. Fassnacht: University of California
L. V. E. Koopmans: Kapteyn Astronomical Institute, University of Groningen, PO Box 800, 9700 AV Groningen, The Netherlands

Nature, 2012, vol. 481, issue 7381, 341-343

Abstract: The discovery of a distant, low-mass satellite galaxy helps to constrain the mass function for substructure beyond the local Universe to a form that agrees at the 95 per cent confidence level with predictions based on cold dark matter.

Date: 2012
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DOI: 10.1038/nature10669

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