{ "id": "astro-ph/9909302", "version": "v1", "published": "1999-09-17T10:08:41.000Z", "updated": "1999-09-17T10:08:41.000Z", "title": "Gravitational Microlensing: Past, Present and Future", "authors": [ "Shude Mao" ], "comment": "Invited review for \"Gravitational Lensing: Recent Progress and Future Goals\", Boston University, July 1999, ed. T.G. Brainerd and C.S. Kochanek", "categories": [ "astro-ph" ], "abstract": "Ongoing microlensing surveys have already yielded more than five hundred microlensing events, most of which have been identified in real-time. In this review I present the basic theory and observational status of these surveys. I highlight the discoveries made so far - these include constraints on the dark matter content of the Galaxy, the structure and mass function of stars in the Galactic bulge and applications on stellar atmospheres and populations. I also briefly discuss the scientific returns (such as planet detection) from real-time photometric and spectroscopic follow-up surveys. With improved software algorithms and more powerful instrumentations, the number of microlensing events will be greatly increased in the future; the Space Interferometry Mission, on the other hand, provides the possibility to break the lens mass and distance degeneracy. I conclude that microlensing is developing into an exciting technique with diverse applications.", "revisions": [ { "version": "v1", "updated": "1999-09-17T10:08:41.000Z" } ], "analyses": { "keywords": [ "gravitational microlensing", "microlensing events", "space interferometry mission", "spectroscopic follow-up surveys", "dark matter content" ], "tags": [ "review article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "inspire": 519393, "adsabs": "1999astro.ph..9302M" } } }