The Macho Project Hubble Space Telescope Follow-up: Preliminary Results on the Location of the Large Magellanic Cloud Microlensing Source Stars
Alcock, Charles; Allsman, Robyn; Alves, David R; Axelrod, Tim; Becker, Andrew C; Bennett, D P; Cook, Kem H; Dalal, N; Drake, Andrew J; Freeman, Kenneth; Geha, M; Griest, K; Lehner, M J; Marshall, S L; Minniti, Dante; Nelson, C A; Peterson, Bruce; Popowski, P; Pratt, M; Quinn, Peter J; Stubbs, Christopher W; Sutherland, William J; Tomaney, A B; Vandehei, T
We attempt to determine whether the MACHO microlensing source stars are drawn from the average population of the LMC or from a population behind the LMC by examining the Hubble Space Telescope (HST) color-magnitude diagram (CMD) of microlensing source stars. We present WFPC2 HST photometry of eight MACHO microlensing source stars and the surrounding fields in the LMC. The microlensing source stars are identified by deriving accurate centroids in the ground-based MACHO images using difference...[Show more]
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