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Galactic bulge microlensing optical depth from eros-2

Abstract : We present a new EROS-2 measurement of the microlensing optical depth toward the Galactic Bulge. Light curves of $5.6\times 10^{6}$ clump-giant stars distributed over $66 \deg^2$ of the Bulge were monitored during seven Bulge seasons. 120 events were found with apparent amplifications greater than 1.6 and Einstein radius crossing times in the range $5 {\rm d}
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Submitted on : Saturday, September 23, 2006 - 9:01:10 PM
Last modification on : Sunday, June 26, 2022 - 11:45:55 AM

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C. Hamadache, L. Le Guillou, P. Tisserand, C. Afonso, J.N. Albert, et al.. Galactic bulge microlensing optical depth from eros-2. Astronomy and Astrophysics - A&A, EDP Sciences, 2006, 454, pp.185-199. ⟨10.1051/0004-6361:20064893⟩. ⟨in2p3-00080147⟩



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