KMT-2019-BLG-1715: Planetary Microlensing Event with Three Lens Masses and Two Source Stars

Abstract We investigate the gravitational microlensing event KMT-2019-BLG-1715, light curve of which shows two short-term anomalies from a caustic-crossing binary-lensing curve: one with large deviation and other small deviation. identify five pairs solutions, in are explained by adding an extra lens or source component addition to base binary-lens model. resolve degeneracies applying method measured flux ratio between first second stars is compared deduced radii. Applying this leaves single pair viable both major anomaly generated planetary-mass third body lens, minor faint source. A Bayesian analysis indicates that comprises three masses: planet-mass object ?2.6 M J binary K dwarfs lying galactic disk. point out possibility blend, can be verified conducting high-resolution follow-up imaging for resolution