Andrew Gould

TL;DR: In this article, the WFIRST microlensing survey was used to detect and precision orbit determination of Kuiper Belt Objects (KBOs) down to H_=28.2 over an effective area of about 17 sq.deg.

TL;DR: In this paper, the authors identify an anomaly in the lensing light curve of the event KMT-2018-BLG-1025 and identify three degenerate solutions, in which the ambiguity between a pair of solutions (solutions B) is caused by the previously known close wide degeneracy, and the degeneracy between these and the other solution (solution A) is a new type that has not been reported before.

TL;DR: In this article, the authors reported the discovery of KMT-2018-BLG-1990Lb, a Jovian planet (m_p = 0.57^(+0.79)_(-0.20)_−0.06) M⊙) at a distance of (D_L = 1.6 ± 0.6 times the snow line distance, i.e., a_(snow) ≡ 2.7 au (M/M)/M)

TL;DR: In this paper, the authors conducted a systematic search of the EROS-2 database for the Galactic catalogue Bulge and spiral arms to find the first R Coronae Borealis (RCB) stars.

TL;DR: In this article, the authors reported three strong candidate substellar brown dwarfs (BDs) events from the search for lensing events not only with short timescales but also with very small angular Einstein radii among the events that have been found in the 2016--2019 observing seasons.