Limits on compact dark matter from null results of searches for lensing of quasistellar objects

Journal Article · Mon Feb 04 00:00:00 EST 1991 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.66.538· OSTI ID:6052462

Nemiroff, R J ^[1]

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1. E. O. Hulburt Center for Space Research, Naval Research Laboratory, Code 4121, 4555 Overlook Avenue, Washington, D.C. 20375 (US)

Recent searches for multiple quasistellar-object images created by gravitational lensing provide new limits on the density of massive compact objects in the Universe. These limits imply that the cosmological density of compact objects more massive than 10{sup 9.9}{ital M}{sub {circle dot}} must be less than closure density, and that the density of compact objects more massive than 10{sup 10.3}{ital M}{sub {circle dot}} must be less than 0.25 of the closure density.

• OSTI ID: 6052462
• Journal Information: Physical Review Letters; (USA), Vol. 66:5; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
UNIVERSE
GRAVITATIONAL LENSES
LIMITING VALUES
MASS
PROBABILITY
RESOLUTION
LENSES
640102* - Astrophysics & Cosmology- Stars & Quasi-Stellar
Radio & X-Ray Sources