Spectroscopic Mass and Host-star Metallicity Measurements for Newly Discovered Microlensing Planet OGLE-2018-BLG-0740Lb

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Title

Spectroscopic Mass and Host-star Metallicity Measurements for Newly Discovered Microlensing Planet OGLE-2018-BLG-0740Lb

Content partner

The University of Auckland Library

Collection

ResearchSpace@Auckland

Description

We report the discovery of the microlensing planet OGLE-2018-BLG-0740Lb. The planet is detected with a very strong signal of Δχ 2 ∼4630, but the interpretation of the signal suffers from two types of degeneracies. One type is caused by the previously known close/wide degeneracy, and the other is caused by an ambiguity between two solutions, in which one solution requires the incorporation of finite-source effects, while the other solution is consistent with a point-source interpretation. Alth...

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Format

Research paper

Research format

Journal article

Date created

2019-09-01

Creator

Han, Cheongho / Yee, Jennifer C / Udalski, Andrzej / Bond, Ian A / Bozza, Valerio / Cassan, Arnaud / Hirao, Yuki / Dong, Subo / Kollmeier, Juna A / Morrell, Nidia / Boutsia, Konstantina / Albrow, Michael D / Chung, Sun-Ju / Gould, Andrew / Hwang, Kyu-Ha / Lee, Chung-Uk / Ryu, Yoon-Hyun / Shin, In-Gu / Shvartzvald, Yossi / Jung, Youn Kil / Kim, Doeon / Kim, Woong-Tae / Cha, Sang-Mok / Kim, Dong-Jin / Kim, Hyoun-Woo / Hong, Kyeongsoo / Kim, Seung-Lee / Lee, Dong-Joo / Lee, Yongseok / Park, Byeong-Gon / Pogge, Richard W / Zang, Weicheng / Mróz, Przemek / Szymański, Michał K / Skowron, Jan / Poleski, Radek / Soszyński, Igor / Pietrukowicz, Paweł / Kozłowski, Szymon / Ulaczyk, Krzysztof / Rybicki, Krzysztof A / Iwanek, Patryk / Wrona, Marcin / Abe, Fumio / Barry, Richard / Bennett, David P / Bhattacharya, Aparna / Donachie, Martin / Fukui, Akihiko / Itow, Yoshitaka / Kawasaki, Kohei / Kondo, Iona / Koshimoto, Naoki / Li, Man Cheung Alex / Matsubara, Yutaka / Muraki, Yasushi / Miyazaki, Shota / Nagakane, Masayuki / Ranc, Clément / Rattenbury, Nicholas J / Suematsu, Haruno / Sullivan, Denis J / Sumi, Takahiro / Suzuki, Daisuke / Tristram, Paul J / Yonehara, Atsunori

URL

https://hdl.handle.net/2292/63168

Related subjects

Science & Technology / Physical Sciences / Astronomy & Astrophysics / gravitational lensing: micro / planetary systems / GRAVITATIONAL LENS / BINARY-SOURCE / SYSTEMS / PHOTOMETRY / SPECTRUM / CAUSTICS / EVENTS / astro-ph.EP / 0201 Astronomical and Space Sciences

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