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Probing MACHOs by observation of M31 pixel lensing with the 1.5m Loiano telescope

Abstract : We analyse a series of pilot observations in order to study microlensing of (unresolved) stars in M31 with the 1.5m Loiano telescope, including observations on both identified variable source stars and reported microlensing events. We also look for previously unknown variability and discover a nova. We discuss an observing strategy for an extended campaign with the goal of determining whether MACHOs exist or whether all microlensing events are compatible with lens stars in M31.
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http://hal.in2p3.fr/in2p3-00142622
Contributor : Simone Lantz <>
Submitted on : Friday, April 20, 2007 - 10:03:36 AM
Last modification on : Wednesday, October 21, 2020 - 4:32:15 PM

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S. Calchi Novati, G. Covone, F. de Paolis, M. Dominik, Y. Giraud-Héraud, et al.. Probing MACHOs by observation of M31 pixel lensing with the 1.5m Loiano telescope. Astronomy and Astrophysics - A&A, EDP Sciences, 2007, 469, pp.115-119. ⟨10.1051/0004-6361:20077075⟩. ⟨in2p3-00142622⟩

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