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New Constraints on Macroscopic Compact Objects as Dark Matter Candidates from Gravitational Lensing of Type Ia Supernovae

R. Benton Metcalf and Joseph Silk
Phys. Rev. Lett. 98, 071302 – Published 16 February 2007; Erratum Phys. Rev. Lett. 98, 099903 (2007)

Abstract

We use the distribution, and particularly the skewness, of high redshift type Ia supernovae brightnesses relative to the low redshift sample to constrain the density of macroscopic compact objects (MCOs) in the Universe. The supernova data favor dark matter made of microscopic particles (such as the lightest supersymmetric partner) over MCOs with masses between 102M and 1010M at 89% confidence. Future data will greatly improve this limit. Combined with other constraints, MCOs larger than one-tenth the mass of Earth (107M) can be eliminated as the sole constituent of dark matter.

  • Figure
  • Received 4 July 2006
  • Corrected 20 February 2007

DOI:https://doi.org/10.1103/PhysRevLett.98.071302

©2007 American Physical Society

Corrections

20 February 2007

Erratum

Authors & Affiliations

R. Benton Metcalf

  • Max-Planck-Institut für Astrophysik, Karl-Schwarzchild-Strasse 1, 85741 Garching, Germany

Joseph Silk

  • Astrophysics, University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, United Kingdom

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Issue

Vol. 98, Iss. 7 — 16 February 2007

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