Journal article
MACHO Project Limits on Black Hole Dark Matter in the 1-30 M☉ Range
Abstract
We report on a search for long-duration microlensing events toward the Large Magellanic Cloud. We find none and therefore put limits on the contribution of high-mass objects to the Galactic dark matter. At a 95% confidence level, we exclude objects in the mass range of 0.3-30.0 M☉ from contributing more than 4 × 1011 M☉ to the Galactic halo. Combined with earlier results, this means that objects with masses under 30 M☉ cannot make up the entire …
Authors
Alcock C; Allsman RA; Alves DR; Axelrod TS; Becker AC; Bennett DP; Cook KH; Dalal N; Drake AJ; Freeman KC
Journal
The Astrophysical Journal, Vol. 550, No. 2, pp. l169–l172
Publisher
American Astronomical Society
Publication Date
April 1, 2001
DOI
10.1086/319636
ISSN
0004-637X