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The MACHO Project: 45 Candidate Microlensing Events from the First Year Galactic Bulge Data
C. Alcock, R. A. Allsman, T. S. Axelrod +15
We report the detection of 45 candidate microlensing events in fields toward the Galactic bulge. These come from the analysis of 24 fields containing 12.6 million stars observed fo…
The MACHO Data Pipeline
T. S. Axelrod, R. A. Allsman, P. J. Quinn +11
The MACHO experiment is searching for dark matter in the halo of the Galaxy by monitoring more than 20 million stars in the LMC and Galactic bulge for gravitational microlensing ev…
Real-time Detection of Gravitational Microlensing
M. R. Pratt, C. Alcock, R. A. Allsman +17
Real-time detection of microlensing has moved from proof of concept in 1994 to a steady stream of events this year. Global dissemination of these events by the MACHO and OGLE colla…
First Observation of Parallax in a Gravitational Microlensing Event
C. Alcock, R. A. Allsman, D. Alves +14
We present the first detection of parallax effects in a gravitational microlensing event. Parallax in a gravitational microlensing event observed only from the Earth appears as a d…
The MACHO Project First Year LMC Results: The Microlensing Rate and the Nature of the Galactic Dark Halo
C. Alcock, R. A. Allsman, T. S. Axelrod +15
The MACHO collaboration reports on the analysis of our first year LMC data, 9.5 million light curves with an average of 235 observations each. Automated selection procedures give 3…
MACHO COLLABORATION SEARCH FOR BARYONIC DARK MATTER VIA GRAVITATIONAL MICROLENSING
K. Griest, C. Alcock, R. A. Allsman +15
Results are presented from the MACHO collaboration gravitational microlensing search. The experiment and the nearly 50 microlensing events that have been detected are described. Li…