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

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

2007-04-11

arxiv.org/abs/0704.1408v1

Astron.Astrophys.469:115-119,2007

Astronomy and Astrophysics

Astrophysics

Accepted for publication as a research Note in Astronomy & Astrophysics

Scientific paper

10.1051/0004-6361:20077075

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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