OGLE-IV Classification of Gaia16aua as a Microlensing Event
ATel #9244; P. Mroz, A. Udalski, L. Wyrzykowski (Warsaw University Observatory), on behalf of the OGLE team
on 13 Jul 2016; 13:01 UT
Credential Certification: Przemek Mroz (pmroz@astrouw.edu.pl)
Subjects: Optical, Microlensing Event, Transient
The transient candidate Gaia16aua is located in the OGLE-IV field, GD1242, that has been regularly observed since 2013 in the course of the sub-survey: Galaxy Variability Survey (GVS) of the OGLE-IV Project.
The OGLE light curve of GD1242.02.14463 star corresponding to the Gaia16aua transient can be well fitted by a point-source point-lens gravitational microlensing model with the current parameters: t0 = 2457547.60 +/- 0.63, tE = 109.7 +/- 14.7 d, and u0 = 0.136 +/- 0.022. Therefore, the transient is a run-of-the-mill gravitational microlensing event toward the Galactic disk.
Plots of the light curve and microlensing model fitted to the current data can be found here.
