A microlensing search of 700 million VVV light curves
Andrea Husseiniova,
Peter McGill,
Leigh C. Smith
et al.
Abstract:The VISTA Variables in the Vıa Lactea (VVV) survey and its extension, have been monitoring about 560 square degrees of sky centred on the Galactic bulge and inner disc for nearly a decade. The photometric catalogue contains of order 10 9 sources monitored in the 𝐾 𝑠 band down to 18 mag over hundreds of epochs from 2010-2019. Using these data we develop a decision tree classifier to identify microlensing events. As inputs to the tree, we extract a few physically motivated features as well as simple statistics… Show more
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