Binary microlensing events from the MACHO project

@article{Alcock2000BinaryME,
  title={Binary microlensing events from the MACHO project},
  author={Charles R. Alcock and Robyn A. Allsman and David Randall Alves and Timothy S. Axelrod and Deborah Baines and Andrew Cameron Becker and David P. Bennett and Adam J. Bourke and A. T. Brakel and K. H. Cook and B. Crook and Ashley D. Crouch and J. Dan and Andrew J. Drake and P. Chris Fragile and Kenneth C. Freeman and Avishay Gal-yam and Marla Geha and Jerry Gray and Kim Griest and A. Gurtierrez and Ana B. Heller and J. Howard and Bradley R. Johnson and Shai Kaspi and Michael J. Keane and Orly Kovo and C. M. Leach and T. Leach and Elia Leibowitz and Matthew J. Lehner and Y. M. Lipkin and Dan Maoz and Simon L. Marshall and D. McDowell and Steven Mckeown and Haim Mendelson and B. B. Messenger and Dante Minniti and Cailin Anne Nelson and Bruce A. Peterson and Piotr Popowski and Enrico Pozza and Patrick N. Purcell and Mark Robin Pratt and J. L. Quinn and Peter Quinn and Sun Hong Rhie and Alex W. Rodgers and Alex Salmon and Ohad Shemmer and Peter B. Stetson and Christopher W. Stubbs and William J. Sutherland and S. Thomson and Austin Bede Tomaney and Thor Vandehei and Alistair R. Walker and K. Ward and G M A Wyper},
  journal={The Astrophysical Journal},
  year={2000},
  volume={541},
  pages={270-297}
}
We present the light curves of 21 gravitational microlensing events from the first six years of the MACHO Project gravitational microlensing survey that are likely examples of lensing by binary systems. These events were manually selected from a total sample of ~350 candidate microlensing events that were either detected by the MACHO Alert System or discovered through retrospective analyses of the MACHO database. At least 14 of these 21 events exhibit strong (caustic) features, and four of the… Expand
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