OGLE-2017-BLG-1186: first application of asteroseismology and Gaussian processes to microlensing
文献类型：期刊论文
| 作者 | Li, S. -S.2,3; Zang, W.4,5; Udalski, A.6; Shvartzvald, Y.7; Huber, D.8; Lee, C. -U.9,10; Sumi, T.11; Gould, A.9,12,13; Mao, S.2,4,5; Fouque, P.14,15 |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2019-09-01 |
| 卷号 | 488期号:3页码:3308-3323 |
| ISSN号 | 0035-8711 |
| 关键词 | asteroseismology gravitational lensing: micro stars: fundamental parameters stars: oscillations |
| DOI | 10.1093/mnras/stz1873 |
| 英文摘要 | We present the analysis of the event OGLE-2017-B1,G-1186 from the 2017.Spitzer microlensing campaign. This is a remarkable microlensing event because its source is photometrically bright and variable, which makes it possible to perform an asteroseismic analysis using ground-based data. We find that the source star is an oscillating red giant with average time scale of similar to 9 d. The asteroseismic analysis also provides us source properties including the source angular size (similar to 27 as) and distance (similar to 11.5 kpc), which are essential for inferring the properties of the lens. When fitting the light curve, we test the feasibility of Gaussian processes (GPs) in handling the correlated noise caused by the variable source. We find that the parameters from the GP model are generally more loosely constrained than those from the traditional chi(2) minimization method. We note that this event is the first microlensing system for which asteroseismology and GPs have been used to account for the variable source. With both finite-source effect and microlens parallax measured, we find that the lens is likely a similar to 0,045 M-circle dot brown dwarf at distance similar to 9.0 kpc, or a similar to 0.073 M-circle dot ultracool dwarf at distance similar to 9.8 kpc. Combining the estimated lens properties with a Bayesian analysis using a Galactic model, we find a similar to 35 per cent probability for the lens to be a bulge object and similar to 65 per cent to be a background disc object. |
| WOS关键词 | SURFACE BRIGHTNESS RELATIONS ; STELLAR OSCILLATIONS ; PLANET PHOTOMETRY ; ANGULAR SIZES ; DWARF STARS ; SYSTEMS ; SUBGIANTS ; DISTANCES ; STANDARD ; PROGRAM |
| 资助项目 | National Science Foundation of China[11821303] ; National Science Foundation of China[11761131004] ; National Science Centre, Poland[MAESTRO 2014/14/A/ST9/00121] ; National Science Foundation[AST-1717000] ; JSPS KAKENHI[JSPS24253004] ; JSPS KAKENHI[JSPS26247023] ; JSPS KAKENHI[JSPS23340064] ; JSPS KAKENHI[JSPS15H00781] ; JSPS KAKENHI[JP16H06287] ; JSPS KAKENHI[JP17H02871] ; US NSF[AST-1516842] ; JPL grant[1500811] ; Canada-France-Hawaii Telescope (CFHT)[11573003] ; National Science Foundation of China (NSFC)[11573003] ; National Research Foundation of Korea[2017R1A4A1015178] ; DFG[SPP 1992] ; DFG[WA 1047/11-1] ; National Funds through FCT -Foundation for Science and Technology[UID/Multi/00611/2013] ; FEDER -European Regional Development Fund[POCI-01-0145-FEDER-006922] ; Italian Minister of Instruction, University and Research (MIUR) through FFABR 2017 fund ; University of Tasmania through the UTAS Foundation ; CNES ; Australian Research Council's LIEF funding scheme[LE110100055] ; National Aeronautics and Space Administration ; National Science Foundation ; ANR COLD-WORLDS[ANR-18-CE31-0002] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | OXFORD UNIV PRESS |
| WOS记录号 | WOS:000485158400026 |
| 资助机构 | National Science Foundation of China ; National Science Foundation of China ; National Science Centre, Poland ; National Science Centre, Poland ; National Science Foundation ; National Science Foundation ; JSPS KAKENHI ; JSPS KAKENHI ; US NSF ; US NSF ; JPL grant ; JPL grant ; Canada-France-Hawaii Telescope (CFHT) ; Canada-France-Hawaii Telescope (CFHT) ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; National Research Foundation of Korea ; National Research Foundation of Korea ; DFG ; DFG ; National Funds through FCT -Foundation for Science and Technology ; National Funds through FCT -Foundation for Science and Technology ; FEDER -European Regional Development Fund ; FEDER -European Regional Development Fund ; Italian Minister of Instruction, University and Research (MIUR) through FFABR 2017 fund ; Italian Minister of Instruction, University and Research (MIUR) through FFABR 2017 fund ; University of Tasmania through the UTAS Foundation ; University of Tasmania through the UTAS Foundation ; CNES ; CNES ; Australian Research Council's LIEF funding scheme ; Australian Research Council's LIEF funding scheme ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; National Science Foundation ; National Science Foundation ; ANR COLD-WORLDS ; ANR COLD-WORLDS ; National Science Foundation of China ; National Science Foundation of China ; National Science Centre, Poland ; National Science Centre, Poland ; National Science Foundation ; National Science Foundation ; JSPS KAKENHI ; JSPS KAKENHI ; US NSF ; US NSF ; JPL grant ; JPL grant ; Canada-France-Hawaii Telescope (CFHT) ; Canada-France-Hawaii Telescope (CFHT) ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; National Research Foundation of Korea ; National Research Foundation of Korea ; DFG ; DFG ; National Funds through FCT -Foundation for Science and Technology ; National Funds through FCT -Foundation for Science and Technology ; FEDER -European Regional Development Fund ; FEDER -European Regional Development Fund ; Italian Minister of Instruction, University and Research (MIUR) through FFABR 2017 fund ; Italian Minister of Instruction, University and Research (MIUR) through FFABR 2017 fund ; University of Tasmania through the UTAS Foundation ; University of Tasmania through the UTAS Foundation ; CNES ; CNES ; Australian Research Council's LIEF funding scheme ; Australian Research Council's LIEF funding scheme ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; National Science Foundation ; National Science Foundation ; ANR COLD-WORLDS ; ANR COLD-WORLDS ; National Science Foundation of China ; National Science Foundation of China ; National Science Centre, Poland ; National Science Centre, Poland ; National Science Foundation ; National Science Foundation ; JSPS KAKENHI ; JSPS KAKENHI ; US NSF ; US NSF ; JPL grant ; JPL grant ; Canada-France-Hawaii Telescope (CFHT) ; Canada-France-Hawaii Telescope (CFHT) ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; National Research Foundation of Korea ; National Research Foundation of Korea ; DFG ; DFG ; National Funds through FCT -Foundation for Science and Technology ; National Funds through FCT -Foundation for Science and Technology ; FEDER -European Regional Development Fund ; FEDER -European Regional Development Fund ; Italian Minister of Instruction, University and Research (MIUR) through FFABR 2017 fund ; Italian Minister of Instruction, University and Research (MIUR) through FFABR 2017 fund ; University of Tasmania through the UTAS Foundation ; University of Tasmania through the UTAS Foundation ; CNES ; CNES ; Australian Research Council's LIEF funding scheme ; Australian Research Council's LIEF funding scheme ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; National Science Foundation ; National Science Foundation ; ANR COLD-WORLDS ; ANR COLD-WORLDS ; National Science Foundation of China ; National Science Foundation of China ; National Science Centre, Poland ; National Science Centre, Poland ; National Science Foundation ; National Science Foundation ; JSPS KAKENHI ; JSPS KAKENHI ; US NSF ; US NSF ; JPL grant ; JPL grant ; Canada-France-Hawaii Telescope (CFHT) ; Canada-France-Hawaii Telescope (CFHT) ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; National Research Foundation of Korea ; National Research Foundation of Korea ; DFG ; DFG ; National Funds through FCT -Foundation for Science and Technology ; National Funds through FCT -Foundation for Science and Technology ; FEDER -European Regional Development Fund ; FEDER -European Regional Development Fund ; Italian Minister of Instruction, University and Research (MIUR) through FFABR 2017 fund ; Italian Minister of Instruction, University and Research (MIUR) through FFABR 2017 fund ; University of Tasmania through the UTAS Foundation ; University of Tasmania through the UTAS Foundation ; CNES ; CNES ; Australian Research Council's LIEF funding scheme ; Australian Research Council's LIEF funding scheme ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; National Science Foundation ; National Science Foundation ; ANR COLD-WORLDS ; ANR COLD-WORLDS |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/27707]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Li, S. -S. |
| 作者单位 | 1.Harvard & Smithsonian, Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA 2.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China 4.Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China 5.Tsinghua Univ, Tsinghua Ctr Astrophys, Beijing 100084, Peoples R China 6.Univ Warsaw Observ, Al Ujazdowskie 4, PL-00478 Warsaw, Poland 7.CALTECH, IPAC, Mail Code 100-22,1200 E Calif Blvd, Pasadena, CA 91125 USA 8.Univ Hawaii, Inst Astron, 2680 Woodlawn Dr, Honolulu, HI 96822 USA 9.Korea Astron & Space Sci Inst, Daejon 34055, South Korea 10.Univ Sci & Technol Korea UST, Astron & Space Sci Major, 217 Gajeong Ro, Daejeon 34113, South Korea |
| 推荐引用方式 GB/T 7714 | Li, S. -S.,Zang, W.,Udalski, A.,et al. OGLE-2017-BLG-1186: first application of asteroseismology and Gaussian processes to microlensing[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2019,488(3):3308-3323. |
| APA | Li, S. -S..,Zang, W..,Udalski, A..,Shvartzvald, Y..,Huber, D..,...&Hill, K..(2019).OGLE-2017-BLG-1186: first application of asteroseismology and Gaussian processes to microlensing.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,488(3),3308-3323. |
| MLA | Li, S. -S.,et al."OGLE-2017-BLG-1186: first application of asteroseismology and Gaussian processes to microlensing".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 488.3(2019):3308-3323. |
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来源：国家天文台
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