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Author
Poleski, R.Suzuki, Daisuke
Udalski, A.
Xie, Xiaojia
Yee, J. C.
Koshimoto, Naoki
Gaudi, B. S.
Gould, A.
Skowron, J.
Szymański, M. K.
Soszyński, I.
Pietrukowicz, P.
Kozłowski, S.
Wyrzykowski, Ł.
Ulaczyk, K.
Abe, Fumio
Barry, Richard K.
Bennett, David. P.
Bhattacharya, Aparna
Bond, Ian A.
Donachie, Martin
Fujii, Hirosane
Fukui, Akihiko
Itow, Yoshitaka
Hirao, Yuki
Kamei, Yuhei
Kondo, Iona
Li, Man Cheung Alex
Matsubara, Yutaka
Miyazaki, Shota
Muraki, Yasushi
Nagakane, Masayuki
Ranc, Clément
Rattenbury, Nicholas J.
Satoh, Yuki K.
Shoji, Hikaru
Suematsu, Haruno
Sullivan, Denis J.
Sumi, Takahiro
Tristram, Paul J.
Yamakawa, Takeharu
Yamawaki, Tsubasa
Yonehara, Atsunori
Han, C.
Dong, Subo
Morzinski, K. M.
Males, J. R.
Close, L. M.
Pogge, R. W.
Beaulieu, J.-P.
Marquette, J.-B.
Affiliation
Univ Arizona, Steward ObservIssue Date
2020-05-14
Metadata
Show full item recordPublisher
IOP PUBLISHING LTDCitation
Poleski, R., Suzuki, D., Udalski, A., Xie, X., Yee, J. C., Koshimoto, N., ... & Soszyński, I. (2020). A Wide-orbit Exoplanet OGLE-2012-BLG-0838Lb. The Astronomical Journal, 159(6), 261.Journal
ASTRONOMICAL JOURNALRights
© 2020. The American Astronomical Society. All rights reserved.Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
We present the discovery of a planet on a very wide orbit in the microlensing event OGLE-2012-BLG-0838. The signal of the planet is well separated from the main peak of the event and the planet-star projected separation is found to be twice the Einstein ring radius, which corresponds to a projected separation of 4 au. Similar planets around low-mass stars are very hard to find using any technique other than microlensing. We discuss microlensing model fitting in detail and discuss the prospects for measuring the mass and distance of the lens system directly.ISSN
0004-6256EISSN
1538-3881Version
Final published versionSponsors
National Aeronautics and Space Administrationae974a485f413a2113503eed53cd6c53
10.3847/1538-3881/ab8a49