Microlensing of extended stellar sources

Hendry, M.A. , Coleman, I.J., Gray, N. , Newsam, A.M. and Simmons, J.F.L. (1998) Microlensing of extended stellar sources. New Astronomy Reviews, 42(2), pp. 125-128. (doi: 10.1016/S1387-6473(98)00033-5)

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We investigate the feasibility of reconstructing the radial intensity profile of extended stellar sources by inverting their microlensed light curves. Using a simple, linear, limb darkening law as an illustration, we show that the intensity profile can be accurately determined, at least over the outer part of the stellar disc, with realistic light curve sampling and photometric errors. The principal requirement is that the impact parameter of the lens be less than or equal to the stellar radius. Thus, the analysis of microlensing events provides a powerful method for testing stellar atmosphere models.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Hendry, Professor Martin and Gray, Dr Norman and Simmons, Mr John
Authors: Hendry, M.A., Coleman, I.J., Gray, N., Newsam, A.M., and Simmons, J.F.L.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:New Astronomy Reviews
ISSN (Online):1872-9630
Published Online:11 March 1999

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