• DOI:10.3847/1538-3881/aaa47b
• Corpus ID: 59408217

Korea Microlensing Telescope Network Microlensing Events from 2015: Event-finding Algorithm, Vetting, and Photometry

@article{Kim2017KoreaMT,
  title={Korea Microlensing Telescope Network Microlensing Events from 2015: Event-finding Algorithm, Vetting, and Photometry},
  author={D.-J. Kim and H.-W. Kim and Kyu-Ha Hwang and Michael D. Albrow and S.-J.Chung and A. Gould and C. Han and Y. K. Jung and Yoon-Hyun Ryu and In-Gu Shin and Jennifer C. Yee and W. W. Zhu and Sang-Mok Cha and S.-L. Kim and C.-U. Lee and Y. Lee and B.-G. Park and Richard W. Pogge},
  journal={The Astronomical Journal},
  year={2017},
  volume={155},
  pages={76}
}

• D.-J. Kim, H.-W. Kim, +15 authors R. Pogge
• Published 20 March 2017
• Physics, Geology
• The Astronomical Journal

We present microlensing events in the 2015 Korea Microlensing Telescope Network (KMTNet) data and our procedure for identifying these events. In particular, candidates were detected with a novel "completed event" microlensing event-finder algorithm. The algorithm works by making linear fits to a (t0,teff,u0) grid of point-lens microlensing models. This approach is rendered computationally efficient by restricting u0 to just two values (0 and 1), which we show is quite adequate. The implementation presented here is specifically tailored to the commission-year character of the 2015 data, but the algorithm is quite general and has already been applied to a completely different (non-KMTNet) data set. We outline expected improvements for 2016 and future KMTNet data. The light curves of the 660 "clear microlensing" and 182 "possible microlensing" events that were found in 2015 are presented along with our policy for their public release.