A companion on the planet/brown dwarf mass boundary on a wide orbit discovered by gravitational microlensing

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Title

A companion on the planet/brown dwarf mass boundary on a wide orbit discovered by gravitational microlensing

Content partner

The University of Auckland Library

Collection

ResearchSpace@Auckland

Description

We present the discovery of a substellar companion to the primary host lens in the microlensing event MOA-2012-BLG-006. The companion-to-host mass ratio is 0.016, corresponding to a companion mass of ≠8 MJup(Mâ-/0.5 MâŠ(tm)). Thus, the companion is either a high-mass giant planet or a low-mass brown dwarf, depending on the mass of the primary Mâ-. The companion signal was separated from the peak of the primary event by a time that was as much as four times longer than the event timescale. W...

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Format

Research paper

Research format

Journal article

Date created

2017-08

Creator

Poleski, R / Udalski, A / Bond, IA / Beaulieu, JP / Clanton, C / Gaudi, S / Szymański, MK / Soszyński, I / Pietrukowicz, P / Kozłowski, Szymon / Skowron, J / Wyrzykowski, Ł / Ulaczyk, K / Bennett, DP / Sumi, T / Suzuki, D / Rattenbury, NJ / Koshimoto, N / Abe, F / Asakura, Y / Barry, RK / Bhattacharya, A / Donachie, M / Evans, P / Fukui, A / Hirao, Y / Itow, Y / Li, MCA / Ling, CH / Masuda, K / Matsubara, Y / Muraki, Y / Nagakane, M / Ohnishi, K / Ranc, C / Saito, To / Sharan, A / Sullivan, DJ / Tristram, PJ / Yamada, T / Yonehara, A / Batista, V / Marquette, JB

URL

https://hdl.handle.net/2292/63280

Related subjects

Science & Technology / Physical Sciences / Astronomy & Astrophysics / gravitational lensing: micro / instrumentation: high angular resolution / planetary systems / brown dwarfs / GALACTIC BULGE / PLANETS / POPULATION / EFFICIENT / EVOLUTION / SYSTEMS / EVENTS / CAMERA / astro-ph.EP / astro-ph.SR / 0201 Astronomical and Space Sciences

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