Microlensing extended stellar sources

dc.creatorBryce, H M
dc.creatorHendry, M A
dc.date2000-04-18
dc.date.accessioned2026-07-25T11:09:03Z
dc.descriptionWe have developed a code to compute multi-colour microlensing lightcurves for extended sources, including the effects of limb darkening and photospheric star spots as a function of spot temperature, position, size and lens trajectory. Our model also includes the effect of structure within the spot and rotation of the stellar source. Our results indicate that star spots generally give a clear signature only for transit events. Moreover, this signature is strongly suppressed by limb darkening for spots close to the limb -- although such spots can be detected by favourable lens trajectories.
dc.description8 pages, 7 figures, to appear in Microlensing 2000: A New Era of Microlensing Astrophysics, eds J W Menzies and P D Sackett, ASP Conference Series
dc.identifierhttps://arxiv.org/abs/astro-ph/0004250
dc.identifierhttp://arxiv.org/abs/astro-ph/0004250
dc.identifier.urihttps://dspace.dare.co.zw/handle/123456789/962
dc.subjectAstrophysics
dc.titleMicrolensing extended stellar sources
dc.typetext

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