OGLE-2015-BLG-1649Lb: A Gas Giant Planet around a Low-mass Dwarf

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Title

OGLE-2015-BLG-1649Lb: A Gas Giant Planet around a Low-mass Dwarf

Content partner

The University of Auckland Library

Collection

ResearchSpace@Auckland

Description

We report the discovery of an exoplanet from the analysis of the gravitational microlensing event OGLE-2015BLG-1649 that challenges the core accretion model of planet formation and appears to support the disk instability model. The planet/host-star mass ratio is q = 7.2 × 10−3 and the projected separation normalized to the angular Einstein radius is s = 0.9. We conducted high-resolution follow-up observations using the Infrared Camera and Spectrograph (IRCS) camera on the Subaru telescope and...

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Format

Research paper

Research format

Journal article

Date created

2019-11-01

Creator

Nagakane, M / Lee, Chien-Hsiu / Koshimoto, N / Suzuki, D / Udalski, A / Beaulieu, JP / Sumi, T / Bennett, DP / Bond, IA / Rattenbury, N / Bachelet, E / Dominik, M / Abe, F / Barry, RK / Bhattacharya, A / Donachie, M / Fujii, H / Fukui, A / Hirao, Y / Itow, Y / Kamei, Y / Kondo, I / Li, MCA / Matsubara, Y / Matsuo, T / Miyazaki, S / Muraki, Y / Ranc, C / Shibai, H / Suematsu, H / Sullivan, DJ / Tristram, PJ / Yamakawa, T / Yonehara, A / Mróz, P / Poleski, R / Skowron, J / Szymański, MK / Soszyński, I / Pietrukowicz, P / Kozłowski, S / Ulaczyk, K / Bramich, DM / Cassan, A / Jaimes, R Figuera / Horne, K / Hundertmark, M / Mao, S / Menzies, J / Schmidt, R / Snodgrass, C / Steele, IA / Street, R / Tsapras, Y / Wambsganss, J / Jørgensen, UG / Bozza, V / Longã, P / Peixinho, N / Skottfelt, J / Southworth, J / Andersen, MI / Burgdorf, MJ / D’Ago, G / Evans, DF / Hinse, TC / Korhonen, H / Rabus, M / Rahvar, S

URL

https://hdl.handle.net/2292/63165

Related subjects

Science & Technology / Physical Sciences / Astronomy & Astrophysics / GALACTIC BULGE / CAMERA / STARS / MODEL / HOST / astro-ph.EP / 0201 Astronomical and Space Sciences

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