Mass Estimates for Some of the Binary Lenses in OGLE III Database

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dc.creatorJaroszynski, M.
dc.creatorUdalski, A.
dc.creatorKubiak, M.
dc.creatorSzymanski, M.
dc.creatorPietrzynski, G.
dc.creatorSoszynski, I.
dc.creatorZebrun, K.
dc.creatorSzewczyk, O.
dc.creatorWyrzykowski, L.
dc.date2005-07-15
dc.date.accessioned2026-07-07T02:18:17Z
dc.date.available2026-07-07T02:18:17Z
dc.descriptionWe model binary microlensing events OGLE 2003-BLG-170, 267, and 291. Source angular sizes are measured for the events 267 and 291. Model fits to the light curves give parallaxes for the events 267 and 291, and relative source sizes for 170 and 267. Selfconsistency arguments provide extra limits on the models of the event 291. As a result we obtain likelihood estimate of the lens mass for the event 170, mass measurement based on angular size and parallax for 267, and narrow limits on mass in the case of 291. Brown dwarfs are most likely candidates for some of the lens components. The influence of the binary lens rotation and the Earth parallax may be important but hard to distinguish when modeling relatively short lasting binary lens events.
dc.description15 pages, 8 figures
dc.identifierhttps://arxiv.org/abs/astro-ph/0507374
dc.identifierhttp://arxiv.org/abs/astro-ph/0507374
dc.identifierActa Astron. 55 (2005) 159
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/9430
dc.subjectAstrophysics
dc.titleMass Estimates for Some of the Binary Lenses in OGLE III Database
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