The 24-Hour Night Shift: Astronomy from Microlensing Monitoring Networks

Details The 24-Hour Night Shift: Astronomy from Microlensing Monitoring Networks The 24-Hour Night Shift: Astronomy from Microlensing Monitoring Networks

2000-01-05

arxiv.org/abs/astro-ph/0001048v1

Astronomy and Astrophysics

Astrophysics

Invited Targeted Talk at ``Gravitational Lensing: Recent Progress and Future Goals,'' 28 July 1999, Boston. To appear in the A

Scientific paper

Scores of on-going microlensing events are now announced yearly by the microlensing discovery teams OGLE, MACHO and EROS. These early warning systems have allowed other international microlensing networks to focus considerable resources on intense photometric - and occasionally spectroscopic - monitoring of microlensing events. Early results include: metallicity measurements of main sequence Galactic bulge stars; limb darkening determinations for stars in the Bulge and Small Magellanic Cloud; proper motion measurements that constrain microlens identity; and constraints on Jovian-mass planets orbiting (presumably stellar) lenses. These results and auxiliary science such as variable star studies and optical identification of gamma ray bursts are reviewed.

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