Binary Microlensing Events from the MACHO Project
Alcock, Charles; Allsman, Robyn; Alves, David R; Axelrod, Tim; Baines, D; Becker, Andrew C; Bennett, D P; Bourke, A; Brakel, A; Cook, Kem H; Crook, B; Crouch, A; Dan, J; Drake, Andrew John; Fragile, P C; Freeman, Kenneth; Gal-Yam, Avishay; Geha, M; Gray, J; Griest, K; Gurtierrez, A; Heller, A; Howard, Judith A K; Johnson, B Ronald; Kaspi, S; Keane, Michael Andrew; Kovo, O; Leach, C; Leach, T; Leibowitz, E; Lehner, M J; Lipkin, Y; Maoz, D; Marshall, S L; Mcdowell, D; McKeown, S; Mendelson, H; Messenger, B; Minniti, Dante; Nelson, C A; Peterson, Bruce; Popowski, P; Pozza, E; Purcell, P; Pratt, M; Quinn, J M W; Quinn, Peter J; Rhie, S.; Rodgers, Alexander; Salmon, A; Shemmer, Ohad; Stetson, Peter B; Stubbs, Christopher W; Sutherland, William J; Thomson, S; Tomaney, A B; Vandehei, T; Walker, A; Ward, K; Wyper, G
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...[Show more]
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