Real-time detection of transients in OGLE-IV with application of machine learning

Abstract

The current bottleneck of transient detection in most surveys is the problem of rejecting numerous artifacts from detected candidates. We present a triple-stage hierarchical machine learning system for automated artifact filtering in difference imaging, based on self-organizing maps. The classifier, when tested on the OGLE-IV Transient Detection System, accepts ~ 97 % of real transients while removing up to ~ 97.5 % of artifacts.

arXiv commentto be published in the Proceedings of the XXXVII Meeting of the Polish Astronomical Society