Spitzer parallax of OGLE-2015-BLG-0966 : a cold Neptune in the Galactic disk
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We report the detection of a cold Neptune mplanet = 21 ± 2 M⊕ orbiting a 0.38 M⊙ M dwarf lying 2.5-3.3 kpc toward the Galactic center as part of a campaign combining ground-based and Spitzer observations to measure the Galactic distribution of planets. This is the first time that the complex real-time protocols described by Yee et al., which aim to maximize planet sensitivity while maintaining sample integrity, have been carried out in practice. Multiple survey and follow up teams successfully combined their efforts within the framework of these protocols to detect this planet. This is the second planet in the Spitzer Galactic distribution sample. Both are in the near to mid-disk and are clearly not in the Galactic bulge.
Street , R A , Udalski , A , Novati , S C , Hundertmark , M P G , Zhu , W , Gould , A , Yee , J , Tsapras , Y , Bennett , D P , Jørgensen , U G , Dominik , M , Andersen , M I , Bachelet , E , Bozza , V , Bramich , D M , Burgdorf , M J , Cassan , A , Ciceri , S , D'Ago , G , Dong , S , Evans , D F , Gu , S-H , Harkonnen , H , Hinse , T C , Horne , K , Jaimes , R F , Kains , N , Kerins , E , Korhonen , H , Kuffmeier , M , Mancini , L , Menzies , J , Mao , S , Peixinho , N , Popovas , A , Rabus , M , Rahvar , S , Ranc , C , Rasmussen , R T , Scarpetta , G , Schmidt , R , Skottfelt , J , Snodgrass , C , Southworth , J , Steele , I A , Surdej , J , Unda-Sanzana , E , Verma , P , von Essen , C , Wambsganss , J , Wang , Y-B , Wertz , O , Poleski , R , Pawlak , M , Szymański , M K , Skowron , J , Mróz , P , Kozłowski , S , Wyrzykowski , Ł , Pietrukowicz , P , Pietrzyński , G , Soszyński , I , Ulaczyk , K , Beichman , C , Bryden , G , Carey , S , Gaudi , B S , Henderson , C B , Pogge , R W , Shvartzvald , Y , Abe , F , Asakura , Y , Bhattacharya , A , Bond , I A , Donachie , M , Freeman , M , Fukui , A , Hirao , Y , Inayama , K , Itow , Y , Koshimoto , N , Li , M C A , Ling , C H , Masuda , K , Matsubara , Y , Muraki , Y , Nagakane , M , Nishioka , T , Ohnishi , K , Oyokawa , H , Rattenbury , N , Saito , T , Sharan , A , Sullivan , D J , Sumi , T , Suzuki , D , Tristram , J , Wakiyama , Y , Yonehara , A , Han , C , Choi , J-Y , Park , H , Jung , Y K & Shin , I-G 2016 , ' Spitzer parallax of OGLE-2015-BLG-0966 : a cold Neptune in the Galactic disk ' Astrophysical Journal , vol 819 , no. 2 , 93 , pp. 1-12 . DOI: 10.3847/0004-637X/819/2/93
© 2016. The American Astronomical Society. All rights reserved. This work is made available online in accordance with the publisher’s policies. This is the final published version of the work, which was originally published at https://dx.doi.org/10.3847/0004-637X/819/2/93
The OGLE project has received funding from the National Science Centre, Poland, grant MAESTRO 2014/14/A/ST9/00121 to A.U. Work by J.C.Y., A.G., and S.C. was supported by JPL grant 1500811. Work by W.Z. and A.G. was supported by NSF AST 1516842. Work by J.C.Y. was performed under contract with the California Institute of Technology (Caltech)/Jet Propulsion Laboratory (JPL) funded by NASA through the Sagan Fellowship Program executed by the NASA Exoplanet Science Institute. Work by C.H. was supported by the Creative Research Initiative Program (2009-0081561) of National Research Foundation of Korea. G.D. acknowledges Regione Campania for support from POR-FSE Campania 2014–2020. T.S. acknowledges the financial support from the JSPS, JSPS23103002, JSPS24253004, and JSPS26247023. The MOA project is supported by the grants JSPS25103508 and 23340064. The US portion of the MOA Collaboration acknowledges financial support from the NSF (AST-1211875) and NASA (NNX12AF54G). Work by Y.S. was supported by an appointment to the NASA Postdoctoral Program at the Jet Propulsion Laboratory, administered by Oak Ridge Associated Universities through a contract with NASA. This publication was made possible by NPRP grant #X-019-1-006 from the Qatar National Research Fund (a member of Qatar Foundation). S.D. is supported by the Strategic Priority Research Program "The Emergence of Cosmological Structures" of the Chinese Academy of Sciences (grant No. XDB09000000). Work by S.M. has been supported by the Strategic Priority Research Program "The Emergence of Cosmological Structures" of the Chinese Academy of Sciences Grant No. XDB09000000, and by the National Natural Science Foundation of China (NSFC) under grant numbers 11333003 and 11390372. M.P.G.H. acknowledges support from the Villum Foundation. Based on data collected by MiNDSTEp with the Danish 1.54 m telescope at the ESO La Silla observatory. J. Surdej and O.W. acknowledge support from the Communaut franaise de Belgique Actions de recherche concertes Acadmie Wallonie-Europe. S.H.G. and X.B.W. acknowledge the financial support from National Natural Science Foundation of China through grants Nos. 10873031 and 11473066. N.P. acknowledges funding by the Gemini-Conicyt Fund, allocated to the project No. 32120036. This work makes use of observations from the LCOGT network, which includes three SUPAscopes owned by the University of St Andrews. The RoboNet programme is an LCOGT Key Project using time allocations from the University of St Andrews, LCOGT, and the University of Heidelberg together with time on the Liverpool Telescope through the Science and Technology Facilities Council (STFC), UK. This research has made use of the LCOGT Archive, which is operated by the California Institute of Technology, under contract with the Las Cumbres Observatory.
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