Study of a Strategy for Parallax Microlensing Detection Towards the Magellanic Clouds

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dc.creatorRahvar, S.
dc.creatorMoniez, M.
dc.creatorAnsari, R.
dc.creatorPerdereau, O.
dc.date2002-10-25
dc.date2003-08-27
dc.date.accessioned2026-07-07T02:05:51Z
dc.date.available2026-07-07T02:05:51Z
dc.descriptionIn this article, we have investigated the possibility to distinguish between different galactic models through the microlensing parallax studies. We show that a systematic search for parallax effects can be done using the currently running alert systems and complementary photometric telescopes, to distinguish between different lens distance distributions. We have considered two galactic dark compact objects distributions, with total optical depths corresponding to the EROS current upper limits. These models correspond to two extreme hypothesis on a three component galactic structure made of a thin disc, a thick disc, and a spherically symmetric halo. Our study shows that for sub-solar mass lenses, an exposure of $8\times 10^7$ star$\times$yr toward LMC should allow to distinguish between these two extreme models. In addition the self-lensing hypothesis (lensing by LMC objects) can efficiently be tested through the method proposed here.
dc.description10 pages, 12 eps figures. To be published in A&A (accepted version). Minor changes: - Discussion added on the differential velocity of the thick galactic disk with respect to the thin disk. - Quality and lisibility of figures improved. - Typo errors corrected
dc.identifierhttps://arxiv.org/abs/astro-ph/0210563
dc.identifierhttp://arxiv.org/abs/astro-ph/0210563
dc.identifierAstron.Astrophys. 412 (2003) 81-90
dc.identifierdoi:10.1051/0004-6361:20031379
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/5229
dc.subjectAstrophysics
dc.titleStudy of a Strategy for Parallax Microlensing Detection Towards the Magellanic Clouds
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