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A brown dwarf orbiting an M-dwarf: MOA 2009-BLG-411L

Bachelet, E; Fouque, P.; Han, C; Gould, A; Albrow, M; Beaulieu, J.-P; Bertin, E; Bond, I; Christie, G W; Heyrovsky, D; Menzies, J. W; Nataf, David; Udalski, A; Bennett, D P; Cassan, A; Martin, R; Pollard, K R; Sahu, K C; Williams, Andrew; Mancini, L; Hearnshaw, J B

Description

Context. Caustic crossing is the clearest signature of binary lenses in microlensing. In the present context, this signature is diluted by the large source star but a detailed analysis has allowed the companion signal to be extracted. Aims. MOA 2009-BLG-411 was detected on August 5, 2009 by the MOA-Collaboration. Alerted as a high-magnification event, it was sensitive to planets. Suspected anomalies in the light curve were not confirmed by a real-time model, but further analysis revealed small...[Show more]

CollectionsANU Research Publications
Date published: 2012
Type: Journal article
URI: http://hdl.handle.net/1885/66566
Source: Astronomy and Astrophysics
DOI: 10.1051/0004-6361/201219765

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