Journal Article

Globular clusters as microlensing targets

Geza Gyuk and Gilbert P. Holder

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 297, issue 2, pages L44-L48
Published in print June 1998 | ISSN: 0035-8711
Published online June 1998 | e-ISSN: 1365-2966 | DOI: http://dx.doi.org/10.1046/j.1365-8711.1998.01718.x
Globular clusters as microlensing targets

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We investigate the possibility of using globular clusters as targets for microlensing searches. Such searches will be challenging and require more powerful telescopes than now employed, but are feasible in the near future. Although expected event rates are low, we show that the wide variety of lines of sight to globular clusters greatly enhances the ability to distinguish between halo models using microlensing observations as compared with LMC/SMC observations alone. In particular, the halo core radius and power-law exponent can be determined with good accuracy.

Keywords: globular clusters: general; Galaxy: halo; gravitational lensing

Journal Article.  0 words. 

Subjects: Astronomy and Astrophysics

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