An Earth-mass Planet in a 1-AU Orbit around an Ultracool Dwarf

Y. Shvartzvald, J. C. Yee, S. Calchi Novati +22

We combine $Spitzer$ and ground-based KMTNet microlensing observations to identify and precisely measure an Earth-mass ($1.43_{-0.32}^{+0.45}{M}_{\oplus }$) planet OGLE-2016-BLG-1195Lb…