OGLE-2017-BLG-0406: Spitzer Microlens Parallax Reveals Saturn-mass Planet orbiting M-dwarf Host in the Inner Galactic Disk

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dc.contributor.authorHirao Y
dc.contributor.authorBennett DP
dc.contributor.authorRyu Y-H
dc.contributor.authorKoshimoto N
dc.contributor.authorUdalski A
dc.contributor.authorYee JC
dc.contributor.authorSumi T
dc.contributor.authorBond IA
dc.contributor.authorShvartzvald Y
dc.contributor.authorAbe F
dc.contributor.authorBarry RK
dc.contributor.authorBhattacharya A
dc.contributor.authorDonachie M
dc.contributor.authorFukui A
dc.contributor.authorItow Y
dc.contributor.authorKondo I
dc.contributor.authorLi MCA
dc.contributor.authorMatsubara Y
dc.contributor.authorMatsuo T
dc.contributor.authorMiyazaki S
dc.contributor.authorMuraki Y
dc.contributor.authorNagakane M
dc.contributor.authorRanc C
dc.contributor.authorRattenbury NJ
dc.contributor.authorSuematsu H
dc.contributor.authorShibai H
dc.contributor.authorSuzuki D
dc.contributor.authorTristram PJ
dc.contributor.authorYonehara A
dc.contributor.authorSkowron J
dc.contributor.authorPoleski R
dc.contributor.authorMroz P
dc.contributor.authorSzymanski MK
dc.contributor.authorSoszynski I
dc.contributor.authorKozlowski S
dc.contributor.authorPietrukowicz P
dc.contributor.authorUlaczyk K
dc.contributor.authorRybicki K
dc.contributor.authorIwanek P
dc.contributor.authorAlbrow MD
dc.contributor.authorChung S-J
dc.contributor.authorGould A
dc.contributor.authorHan C
dc.contributor.authorHwang K-H
dc.contributor.authorJung YK
dc.contributor.authorShin I-G
dc.contributor.authorZang W
dc.contributor.authorCha S-M
dc.contributor.authorKim D-J
dc.contributor.authorKim H-W
dc.contributor.authorKim S-L
dc.contributor.authorLee C-U
dc.contributor.authorLee D-J
dc.contributor.authorLee Y
dc.contributor.authorPark B-G
dc.contributor.authorPogge RW
dc.contributor.authorBeichman CA
dc.contributor.authorBryden G
dc.contributor.authorNovati SC
dc.contributor.authorCarey S
dc.contributor.authorGaudi BS
dc.contributor.authorHenderson CB
dc.contributor.authorZhu W
dc.contributor.authorBachelet E
dc.contributor.authorBolt G
dc.contributor.authorChristie G
dc.contributor.authorHundertmark M
dc.contributor.authorNatusch T
dc.contributor.authorMaoz D
dc.contributor.authorMcCormick J
dc.contributor.authorStreet RA
dc.contributor.authorTan T-G
dc.contributor.authorTsapras Y
dc.contributor.authorJorgensen UG
dc.contributor.authorDominik M
dc.contributor.authorBozza V
dc.contributor.authorSkottfelt J
dc.contributor.authorSnodgrass C
dc.contributor.authorCiceri S
dc.contributor.authorJaimes RF
dc.contributor.authorEvans DF
dc.contributor.authorPeixinho N
dc.contributor.authorHinse TC
dc.contributor.authorBurgdorf MJ
dc.contributor.authorSouthworth J
dc.contributor.authorRahvar S
dc.contributor.authorSajadian S
dc.contributor.authorRabus M
dc.contributor.authorEssen CV
dc.contributor.authorFujii YI
dc.contributor.authorCampbell-White J
dc.contributor.authorLowry S
dc.contributor.authorHelling C
dc.contributor.authorMancini L
dc.contributor.authorHaikala L
dc.contributor.authorKandori R
dc.date.accessioned2021-09-17T02:21:14Z
dc.date.available2021-09-17T02:21:14Z
dc.date.issued2020en
dc.date.updated2020-07-21T23:44:46Z
dc.description.abstractWe report the discovery and analysis of the planetary microlensing event OGLE 2017-BLG-0406, which was observed both from the ground and by the Spitzer satellite in a solar orbit. At high magnification, the anomaly in the light curve was densely observed by ground-based-survey and follow-up groups, and it was found to be explained by a planetary lens with a planet/host mass ratio of q = 7.0 × 10−4 from the light curve modeling. The ground-only and Spitzer-“only” data each provide very strong one-dimensional (1-D) constraints on the 2-D microlens parallax vector πE. When combined, these yield a precise measurement of πE, and so of the masses of the host Mhost = 0.56 ± 0.07 M and planet Mplanet = 0.41 ± 0.05 MJup. The system lies at a distance DL = 5.2 ± 0.5 kpc from the Sun toward the Galactic bulge, and the host is more likely to be a disk population star according to the kinematics of the lens. The projected separation of the planet from the host is a⊥ = 3.5 ± 0.3 au, i.e., just over twice the snow line. The Galactic-disk kinematics are established in part from a precise measurement of the source proper motion based on OGLE-IV data. By contrast, the Gaia proper-motion measurement of the source suffers from a catastrophic 10 σ error.en
dc.identifier.citationHirao Y, Bennett DP, Ryu Y-H, Koshimoto N, Udalski A, Yee JC, Sumi T, Bond IA, Shvartzvald Y, Abe F, Barry RK, Bhattacharya A, Donachie M, Fukui A, Itow Y, Kondo I, Li MCA, Matsubara Y, Matsuo T, Miyazaki S, Muraki Y, Nagakane M, Ranc C, Rattenbury NJ, Suematsu H, Shibai H, Suzuki D, Tristram PJ, Yonehara A, Skowron J, Poleski R, Mroz P, Szymanski MK, Soszynski I, Kozlowski S, Pietrukowicz P, Ulaczyk K, Rybicki K, Iwanek P, Albrow MD, Chung S-J, Gould A, Han C, Hwang K-H, Jung YK, Shin I-G, Zang W, Cha S-M, Kim D-J, Kim H-W, Kim S-L, Lee C-U, Lee D-J, Lee Y, Park B-G, Pogge RW, Beichman CA, Bryden G, Novati SC, Carey S, Gaudi BS, Henderson CB, Zhu W, Bachelet E, Bolt G, Christie G, Hundertmark M, Natusch T, Maoz D, McCormick J, Street RA, Tan T-G, Tsapras Y, Jorgensen UG, Dominik M, Bozza V, Skottfelt J, Snodgrass C, Ciceri S, Jaimes RF, Evans DF, Peixinho N, Hinse TC, Burgdorf MJ, Southworth J, Rahvar S, Sajadian S, Rabus M, Essen CV, Fujii YI, Campbell-White J, Lowry S, Helling C, Mancini L, Haikala L, Kandori R OGLE-2017-BLG-0406: Spitzer Microlens Parallax Reveals Saturn-mass Planet orbiting M-dwarf Host in the Inner Galactic Disk.en
dc.identifier.urihttps://hdl.handle.net/10092/102461
dc.language.isoen
dc.rightsAll rights reserved unless otherwise stateden
dc.rights.urihttp://hdl.handle.net/10092/17651en
dc.subjectGravitational microlensingen
dc.subjectGravitational microlensing exoplanet detectionen
dc.subject.anzsrcFields of Research::51 - Physical sciences::5101 - Astronomical sciencesen
dc.titleOGLE-2017-BLG-0406: Spitzer Microlens Parallax Reveals Saturn-mass Planet orbiting M-dwarf Host in the Inner Galactic Disken
dc.typeJournal Articleen
uc.collegeFaculty of Science
uc.departmentSchool of Physical & Chemical Sciences
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