Spitzer + VLTI-GRAVITY Measure the Lens Mass of a Nearby Microlensing Event

Weicheng Zang, Subo Dong, Andrew Gould +24

We report the lens mass and distance measurements of the nearby microlensing event TCP J05074264+2447555. We measure the microlens parallax vector ${\pi }_{\mathrm{E}}$ using Spitzer and gro…