OGLE-2016-BLG-1190Lb: The First Spitzer Bulge Planet Lies Near the Planet/Brown-dwarf Boundary

doi:10.3847/1538-3881/aa9be4

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	OGLE-2016-BLG-1190Lb: The First Spitzer Bulge Planet Lies Near the Planet/Brown-dwarf Boundary
	Ryu, Y. -H.63; Yee, J. C.1; Udalski, A.2; Bond, I. A.3; Shvartzvald, Y.5; Zang, W.6,7,8; Jaimes, R. Figuera 9,10; Jorgensen, U. G.11,12; Zhu, W.13; Huang, C. X.14,15,16,17
刊名	ASTRONOMICAL JOURNAL
	2018
卷号	155 期号:1 页码:24
关键词	gravitational lensing: micro
ISSN号	0004-6256
DOI	10.3847/1538-3881/aa9be4
英文摘要	We report the discovery of OGLE-2016-BLG-1190Lb, which is likely to be the first Spitzer microlensing planet in the Galactic bulge/ bar, an assignation that can be confirmed by two epochs of high-resolution imaging of the combined source-lens baseline object. The planet's mass, M-p = 13.4 +/- 0.9 M-J, places it right at the deuteriumburning limit, i. e., the conventional boundary between "planets" and "brown dwarfs." Its existence raises the question of whether such objects are really " planets" (formed within the disks of their hosts) or "failed stars" (lowmass objects formed by gas fragmentation). This question may ultimately be addressed by comparing disk and bulge/bar planets, which is a goal of the Spitzer microlens program. The host is a G dwarf, M-host = 0.89. +/- 0.07 M-circle dot, and the planet has a semimajor axis a similar to 2.0 au. We use Kepler K2 Campaign 9 microlensing data to break the lens-mass degeneracy that generically impacts parallax solutions from Earth-Spitzer observations alone, which is the first successful application of this approach. The microlensing data, derived primarily from near-continuous, ultradense survey observations from OGLE, MOA, and three KMTNet telescopes, contain more orbital information than for any previous microlensing planet, but not quite enough to accurately specify the full orbit. However, these data do permit the first rigorous test of microlensing orbital-motion measurements, which are typically derived from data taken over < 1% of an orbital period.
资助项目	US NSF[AST-1516842] ; JPL[1500811] ; National Research Foundation of Korea[2017R1A4A101517] ; National Science Centre, Poland, MAESTRO[2014/14/A/ST9/00121] ; JSPS KAKENHI[JSPS24253004] ; JSPS KAKENHI[JSPS26247023] ; JSPS KAKENHI[JSPS23340064] ; JSPS KAKENHI[JSPS15H00781] ; JSPS KAKENHI[JP16H06287] ; NASA Postdoctoral Program at the Goddard Space Flight Center ; NASA Postdoctoral Program at the Jet Propulsion Laboratory, California Institute of Technology ; NASA and operated under an agreement among the University of Hawaii ; University of Arizona, and Lockheed Martin Advanced Technology Center ; Joint Astronomy Centre of the Science and Technology Facilities Council of the UK ; NASA HQ for the UKIRT K2 C9 ; National Astronomical Observatories of China ; Chinese Academy of Sciences (the Strategic Priority Research Program "The Emergence of Cosmological Structures")[XDB09000000] ; Special Fund for Astronomy from the Ministry of Finance ; NASA through the Sagan Fellowship Program ; NASA[NNX16AC62G] ; National Science Foundation of China[11333003] ; National Science Foundation of China[11390372] ; STFC[ST/M001296/1] ; [INSF-95843339]
WOS关键词	GRAVITATIONAL LENSING EXPERIMENT ; MAGNIFICATION MICROLENSING EVENTS ; JUPITER/SATURN ANALOG ; MASS PLANET ; EARTH-MASS ; GAS GIANTS ; SYSTEMS ; PHOTOMETRY ; STARS ; TIME
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000419110000004
资助机构	US NSF ; US NSF ; JPL ; JPL ; National Research Foundation of Korea ; National Research Foundation of Korea ; National Science Centre, Poland, MAESTRO ; National Science Centre, Poland, MAESTRO ; JSPS KAKENHI ; JSPS KAKENHI ; NASA Postdoctoral Program at the Goddard Space Flight Center ; NASA Postdoctoral Program at the Goddard Space Flight Center ; NASA Postdoctoral Program at the Jet Propulsion Laboratory, California Institute of Technology ; NASA Postdoctoral Program at the Jet Propulsion Laboratory, California Institute of Technology ; NASA and operated under an agreement among the University of Hawaii ; NASA and operated under an agreement among the University of Hawaii ; University of Arizona, and Lockheed Martin Advanced Technology Center ; University of Arizona, and Lockheed Martin Advanced Technology Center ; Joint Astronomy Centre of the Science and Technology Facilities Council of the UK ; Joint Astronomy Centre of the Science and Technology Facilities Council of the UK ; NASA HQ for the UKIRT K2 C9 ; NASA HQ for the UKIRT K2 C9 ; National Astronomical Observatories of China ; National Astronomical Observatories of China ; Chinese Academy of Sciences (the Strategic Priority Research Program "The Emergence of Cosmological Structures") ; Chinese Academy of Sciences (the Strategic Priority Research Program "The Emergence of Cosmological Structures") ; Special Fund for Astronomy from the Ministry of Finance ; Special Fund for Astronomy from the Ministry of Finance ; NASA through the Sagan Fellowship Program ; NASA through the Sagan Fellowship Program ; NASA ; NASA ; National Science Foundation of China ; National Science Foundation of China ; STFC ; STFC ; US NSF ; US NSF ; JPL ; JPL ; National Research Foundation of Korea ; National Research Foundation of Korea ; National Science Centre, Poland, MAESTRO ; National Science Centre, Poland, MAESTRO ; JSPS KAKENHI ; JSPS KAKENHI ; NASA Postdoctoral Program at the Goddard Space Flight Center ; NASA Postdoctoral Program at the Goddard Space Flight Center ; NASA Postdoctoral Program at the Jet Propulsion Laboratory, California Institute of Technology ; NASA Postdoctoral Program at the Jet Propulsion Laboratory, California Institute of Technology ; NASA and operated under an agreement among the University of Hawaii ; NASA and operated under an agreement among the University of Hawaii ; University of Arizona, and Lockheed Martin Advanced Technology Center ; University of Arizona, and Lockheed Martin Advanced Technology Center ; Joint Astronomy Centre of the Science and Technology Facilities Council of the UK ; Joint Astronomy Centre of the Science and Technology Facilities Council of the UK ; NASA HQ for the UKIRT K2 C9 ; NASA HQ for the UKIRT K2 C9 ; National Astronomical Observatories of China ; National Astronomical Observatories of China ; Chinese Academy of Sciences (the Strategic Priority Research Program "The Emergence of Cosmological Structures") ; Chinese Academy of Sciences (the Strategic Priority Research Program "The Emergence of Cosmological Structures") ; Special Fund for Astronomy from the Ministry of Finance ; Special Fund for Astronomy from the Ministry of Finance ; NASA through the Sagan Fellowship Program ; NASA through the Sagan Fellowship Program ; NASA ; NASA ; National Science Foundation of China ; National Science Foundation of China ; STFC ; STFC ; US NSF ; US NSF ; JPL ; JPL ; National Research Foundation of Korea ; National Research Foundation of Korea ; National Science Centre, Poland, MAESTRO ; National Science Centre, Poland, MAESTRO ; JSPS KAKENHI ; JSPS KAKENHI ; NASA Postdoctoral Program at the Goddard Space Flight Center ; NASA Postdoctoral Program at the Goddard Space Flight Center ; NASA Postdoctoral Program at the Jet Propulsion Laboratory, California Institute of Technology ; NASA Postdoctoral Program at the Jet Propulsion Laboratory, California Institute of Technology ; NASA and operated under an agreement among the University of Hawaii ; NASA and operated under an agreement among the University of Hawaii ; University of Arizona, and Lockheed Martin Advanced Technology Center ; University of Arizona, and Lockheed Martin Advanced Technology Center ; Joint Astronomy Centre of the Science and Technology Facilities Council of the UK ; Joint Astronomy Centre of the Science and Technology Facilities Council of the UK ; NASA HQ for the UKIRT K2 C9 ; NASA HQ for the UKIRT K2 C9 ; National Astronomical Observatories of China ; National Astronomical Observatories of China ; Chinese Academy of Sciences (the Strategic Priority Research Program "The Emergence of Cosmological Structures") ; Chinese Academy of Sciences (the Strategic Priority Research Program "The Emergence of Cosmological Structures") ; Special Fund for Astronomy from the Ministry of Finance ; Special Fund for Astronomy from the Ministry of Finance ; NASA through the Sagan Fellowship Program ; NASA through the Sagan Fellowship Program ; NASA ; NASA ; National Science Foundation of China ; National Science Foundation of China ; STFC ; STFC ; US NSF ; US NSF ; JPL ; JPL ; National Research Foundation of Korea ; National Research Foundation of Korea ; National Science Centre, Poland, MAESTRO ; National Science Centre, Poland, MAESTRO ; JSPS KAKENHI ; JSPS KAKENHI ; NASA Postdoctoral Program at the Goddard Space Flight Center ; NASA Postdoctoral Program at the Goddard Space Flight Center ; NASA Postdoctoral Program at the Jet Propulsion Laboratory, California Institute of Technology ; NASA Postdoctoral Program at the Jet Propulsion Laboratory, California Institute of Technology ; NASA and operated under an agreement among the University of Hawaii ; NASA and operated under an agreement among the University of Hawaii ; University of Arizona, and Lockheed Martin Advanced Technology Center ; University of Arizona, and Lockheed Martin Advanced Technology Center ; Joint Astronomy Centre of the Science and Technology Facilities Council of the UK ; Joint Astronomy Centre of the Science and Technology Facilities Council of the UK ; NASA HQ for the UKIRT K2 C9 ; NASA HQ for the UKIRT K2 C9 ; National Astronomical Observatories of China ; National Astronomical Observatories of China ; Chinese Academy of Sciences (the Strategic Priority Research Program "The Emergence of Cosmological Structures") ; Chinese Academy of Sciences (the Strategic Priority Research Program "The Emergence of Cosmological Structures") ; Special Fund for Astronomy from the Ministry of Finance ; Special Fund for Astronomy from the Ministry of Finance ; NASA through the Sagan Fellowship Program ; NASA through the Sagan Fellowship Program ; NASA ; NASA ; National Science Foundation of China ; National Science Foundation of China ; STFC ; STFC
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/37384]
专题	中国科学院国家天文台
通讯作者	Bennett, D. P.
作者单位	1.Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA 2.Univ Warsaw Observ, Al Ujazdowskie 4, PL-00478 Warsaw, Poland 3.Massey Univ, Inst Nat & Math Sci, Auckland 0745, New Zealand 4.Open Univ, Dept Phys Sci, Ctr Elect Imaging, Milton Keynes MK7 6AA, Bucks, England 5.CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA 6.Tsinghua Univ, Phys Dept, Beijing 100084, Peoples R China 7.Tsinghua Univ, Tsinghua Ctr Astrophys, Beijing 100084, Peoples R China 8.Zhejiang Univ, Dept Phys, Hangzhou 310058, Zhejiang, Peoples R China 9.Univ St Andrews, SUPA Sch Phys & Astron, Ctr Exoplanet Sci, St Andrews KY16 9SS, Fife, Scotland 10.European Southern Observ, Karl Schwarzschild Str 2, D-85748 Garching, Germany
推荐引用方式 GB/T 7714	Ryu, Y. -H.,Yee, J. C.,Udalski, A.,et al. OGLE-2016-BLG-1190Lb: The First Spitzer Bulge Planet Lies Near the Planet/Brown-dwarf Boundary[J]. ASTRONOMICAL JOURNAL,2018,155(1):24.
APA	Ryu, Y. -H..,Yee, J. C..,Udalski, A..,Bond, I. A..,Shvartzvald, Y..,...&von Essen, C..(2018).OGLE-2016-BLG-1190Lb: The First Spitzer Bulge Planet Lies Near the Planet/Brown-dwarf Boundary.ASTRONOMICAL JOURNAL,155(1),24.
MLA	Ryu, Y. -H.,et al."OGLE-2016-BLG-1190Lb: The First Spitzer Bulge Planet Lies Near the Planet/Brown-dwarf Boundary".ASTRONOMICAL JOURNAL 155.1(2018):24.