4 papers
MOA-2015-BLG-337: A Planetary System with a Low-mass Brown Dwarf/Planetary Boundary Host, or a Brown Dwarf Binary
S. Miyazaki, T. Sumi, D. P. Bennett +59
We report the discovery and the analysis of the short timescale binary-lens microlensing event, MOA-2015-BLG-337. The lens system could be a planetary system with a very low mass h…
A Neptune-mass Free-floating Planet Candidate Discovered by Microlensing Surveys
Przemek Mroz, Y. -H. Ryu, J. Skowron +26
Current microlensing surveys are sensitive to free-floating planets down to Earth-mass objects. All published microlensing events attributed to unbound planets were identified base…
OGLE-2015-BLG-1482L: the first isolated low-mass microlens in the Galactic bulge
S. -J. Chung, W. Zhu, A. Udalski +35
We analyze the single microlensing event OGLE-2015-BLG-1482 simultaneously observed from two ground-based surveys and from \textit{Spitzer}. The \textit{Spitzer} data exhibit finit…
Toward a Galactic Distribution of Planets. I. Methodology & Planet Sensitivities of the 2015 High-Cadence Spitzer Microlens Sample
Wei Zhu, A. Udalski, S. Calchi Novati +35
We analyze an ensemble of microlensing events from the 2015 Spitzer microlensing campaign, all of which were densely monitored by ground-based high-cadence survey teams. The simult…