The Optical Gravitation Lensing Experiment Ongoing

摘要

In the mid-1990s, a group of Polish astronomers led the construction of a 1.3-meter telescope at the Las Campa-nas Observatory in Chile. The Optical Gravitational Lensing Experiment's main goal has been to search for dark matter using microlensing, but since the early 2000s, the telescope has also proved its utility as a planet-hunting tool. Its capabilities have greatly improved since first light. In 2009, the telescope was mounted with a new, 32-chip mosaic camera, a far cry from the single-chip instrument used in its early years.