Shin, In-Gu and Yee, Jennifer C. and Hwang, Kyu-Ha and Gould, Andrew and Udalski, Andrzej and Bond, Ian A. and Albrow, Michael D. and Chung, Sun-Ju and Han, Cheongho and Kil Jung, Youn and Woo Kim, Hyoun and Ryu, Yoon-Hyun and Shvartzvald, Yossi and Zang, Weicheng and Cha, Sang-Mok and Kim, Dong-Jin and Kim, Seung-Lee and Lee, Chung-Uk and Lee, Dong-Joo and Lee, Yongseok and Park, Byeong-Gon and Pogge, Richard W. and Mróz, Przemek and Szymański, Michał K. and Skowron, Jan and Poleski, Radek and Soszyński, Igor and Pietrukowicz, Paweł and Kozłowski, Szymon and Ulaczyk, Krzysztof and Beichman, Charles A. and Bryden, Geoffery and Calchi Novati, Sebastiano and Carey, Sean and Gaudi, B. Scott and Henderson, Calen B. and Zhu, Wei and Abe, Fumio and Barry, Richard K. and Bennett, David P. and Bhattacharya, Aparna and Fujii, Hirosane and Fukui, Akihiko and Hirao, Yuki and Itow, Yoshitaka and Kirikawa, Rintaro and Koshimoto, Naoki and Kondo, Iona and Matsubara, Yutaka and Matsumoto, Sho and Miyazaki, Shota and Muraki, Yasushi and Olmschenk, Greg and Okamura, Arisa and Ranc, Clément and Rattenbury, Nicholas J. and Satoh, Yuki and Silva, Stela Ishitani and Sumi, Takahiro and Suzuki, Daisuke and Toda, Taiga and Tristram, Paul J. and Vandorou, Aikaterini and Yama, Hibiki (2022) OGLE-2016-BLG-1093Lb: A Sub-Jupiter-mass Spitzer Planet Located in the Galactic Bulge. Astronomical Journal, 163 (6). Art. No. 254. ISSN 0004-6256. doi:10.3847/1538-3881/ac6513. https://resolver.caltech.edu/CaltechAUTHORS:20220512-561162000
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Abstract
OGLE-2016-BLG-1093 is a planetary microlensing event that is part of the statistical Spitzer microlens parallax sample. The precise measurement of the microlens parallax effect for this event, combined with the measurement of finite-source effects, leads to a direct measurement of the lens masses and system distance, M_(host) =0.38–0.57 M_⊙ and m_p = 0.59–0.87 M_(Jup), and the system is located at the Galactic bulge (D_L ∼ 8.1 kpc). Because this was a high-magnification event, we are also able to empirically show that the "cheap-space parallax" concept produces well-constrained (and consistent) results for ∣π_E∣. This demonstrates that this concept can be extended to many two-body lenses. Finally, we briefly explore systematics in the Spitzer light curve in this event and show that their potential impact is strongly mitigated by the color constraint.
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| Additional Information: | © 2022. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Received 2022 January 6; revised 2022 March 10; accepted 2022 April 6; published 2022 May 10. This research has made use of the KMTNet system operated by the Korea Astronomy and Space Science Institute (KASI), and the data were obtained at three host sites of CTIO in Chile, SAAO in South Africa, and SSO in Australia. Work by C.H. was supported by grants of the National Research Foundation of Korea (2017R1A4A1015178 and 2019R1A2C2085965). J.C.Y. acknowledges support from N.S.F grant No. AST–2108414 and JPL grant 1571564. The MOA project is supported by JSPS KAKENHI grant Nos. JSPS24253004, JSPS26247023, JSPS23340064, JSPS15H00781, JP16H06287, 17H02871, and 19KK0082. | ||||||||||||||||||||||||
| Group: | Infrared Processing and Analysis Center (IPAC) | ||||||||||||||||||||||||
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| Subject Keywords: | Gravitational microlensing exoplanet detection; Satellite microlensing parallax | ||||||||||||||||||||||||
| Issue or Number: | 6 | ||||||||||||||||||||||||
| Classification Code: | Unified Astronomy Thesaurus concepts: Gravitational microlensing exoplanet detection (2147); Satellite microlensing parallax (2148) | ||||||||||||||||||||||||
| DOI: | 10.3847/1538-3881/ac6513 | ||||||||||||||||||||||||
| Record Number: | CaltechAUTHORS:20220512-561162000 | ||||||||||||||||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20220512-561162000 | ||||||||||||||||||||||||
| Official Citation: | In-Gu Shin et al 2022 AJ 163 254 | ||||||||||||||||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||||||||||||||
| ID Code: | 114705 | ||||||||||||||||||||||||
| Collection: | CaltechAUTHORS | ||||||||||||||||||||||||
| Deposited By: | George Porter | ||||||||||||||||||||||||
| Deposited On: | 13 May 2022 17:29 | ||||||||||||||||||||||||
| Last Modified: | 08 Aug 2022 20:50 |
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