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J. Tristram

Publications -  10
Citations -  428

J. Tristram is an academic researcher. The author has contributed to research in topics: Gravitational microlensing & Light curve. The author has an hindex of 7, co-authored 9 publications receiving 422 citations.

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Spitzer parallax of OGLE-2015-BLG-0966 : a cold Neptune in the Galactic disk

Rachel Street, +110 more
TL;DR: In this paper, the authors reported the detection of a cold Neptune mplanet = 21 ± 2 M⊕ orbiting a 0.38 m⊙ M dwarf lying 2.5-3.3 kpc toward the Galactic center as part of a campaign combining ground-based and Spitzer observations.
Journal ArticleDOI

The Microlensing Event Rate and Optical Depth Toward the Galactic Bulge from MOA-II

TL;DR: In this article, the authors present measurements of the microlensing optical depth and event rate toward the central galactic bulge based on two years of the MOA-II survey and find that the event rate is maximized at low latitudes and a longitude of $l~1 degree.
Journal ArticleDOI

Spitzer Parallax of OGLE-2015-BLG-0966: A Cold Neptune in the Galactic Disk

Rachel Street, +104 more
TL;DR: In this article, the detection of a Cold Neptune m_planet=21+/-2M orbiting a 0.38MSol M dwarf lying 2.5-3.3 kpc toward the Galactic center as part of a campaign combining ground-based and Spitzer observations was reported.