OGLE-2018-BLG-1185b: A Low-mass Microlensing Planet Orbiting a Low-mass Dwarf

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Title

OGLE-2018-BLG-1185b: A Low-mass Microlensing Planet Orbiting a Low-mass Dwarf

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The University of Auckland Library

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ResearchSpace@Auckland

Description

We report an analysis of the planetary microlensing event OGLE-2018-BLG-1185, which was observed by a large number of ground-based telescopes and by the Spitzer Space Telescope. The ground-based light curve indicates a low planet-host star mass ratio of q = (6.9 0.2) 10-5, which is near the peak of the wide-orbit exoplanet mass-ratio distribution. We estimate the host star and planet masses with a Bayesian analysis using the measured angular Einstein radius under the assumption that stars of ...

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Format

Research paper

Research format

Journal article

Date created

2021-08-01

Creator

Kondo, Iona / Yee, Jennifer C / Bennett, David P / Sumi, Takahiro / Koshimoto, Naoki / Bond, Ian A / Gould, Andrew / Udalski, Andrzej / Shvartzvald, Yossi / Jung, Youn Kil / Zang, Weicheng / Bozza, Valerio / Bachelet, Etienne / Hundertmark, Markus PG / Rattenbury, Nicholas J / Abe, F / Barry, R / Bhattacharya, A / Donachie, M / Fukui, A / Fujii, H / Hirao, Y / Silva, S Ishitani / Itow, Y / Kirikawa, R / Li, MCA / Matsubara, Y / Miyazaki, S / Muraki, Y / Olmschenk, G / Ranc, C / Satoh, Y / Shoji, H / Suzuki, D / Tanaka, Y / Tristram, PJ / Yamawaki, T / Yonehara, A / Mróz, P / Poleski, R / Skowron, J / Szymański, MK / Soszyński, I / Kozłowski, S / Pietrukowicz, P / Ulaczyk, K / Rybicki, KA / Iwanek, P / Wrona, M / Albrow, MD / Chung, S-J / Han, C / Hwang, K-H / Kim, H-W / Shin, I-G / Cha, S-M / Kim, D-J / Kim, S-L / Lee, C-U / Lee, D-J / Lee, Y / Park, B-G / Pogge, RW / Ryu, Y-H / Beichman, CA / Bryden, G / Novati, S Calchi / Carey, S / Gaudi, BS / Henderson, CB / Zhu, W / Maoz, D / Penny, MT / Dominik, M / Jørgensen, UG / Longa-Peña, P / Peixinho, N / Sajadian, S / Skottfelt, J / Snodgrass, C / Tregloan-Reed, J / Burgdorf, MJ / Campbell-White, J / Dib, S / Fujii, YI / Hinse, TC / Khalouei, E / Rahvar, S / Rabus, M / Southworth, J / Tsapras, Y / Street, RA / Bramich, DM / Cassan, A / Horne, K / Wambsganss, J / Mao, S / Saha, A

URL

https://hdl.handle.net/2292/63173

Related subjects

Science & Technology / Physical Sciences / Astronomy & Astrophysics / GRAVITATIONAL LENSING EXPERIMENT / SPITZER PARALLAX / GALACTIC BULGE / GIANT PLANETS / COLD NEPTUNE / HOST / EVENTS / PHOTOMETRY / ACCRETION / SYSTEMS / astro-ph.EP / 0201 Astronomical and Space Sciences

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