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An analysis of binary microlensing event OGLE-2015-BLG-0060
Tsapras, Y.1; Cassan, A.2; Ranc, C.3; Bachelet, E.4; Street, R.4; Udalski, A.5; Hundertmark, M.1; Bozza, V.6,7; Beaulieu, J. P.2,8; Marquette, J. B.2; Euteneuer, E.1; Bramich, D. M.9; Dominik, M.10; Jaimes, R. Figuera10,11; Horne, K.10; Mao, S.11,12,13; Menzies, J.14; Schmidt, R.1; Snodgrass, C.15,16; Steele, I. A.17; Wambsganss, J.1,18; Mroz, P.5; Szymanski, M. K.5; Soszynski, I.5; Skowron, J.5; Pietrukowicz, P.5; Kozlowski, S.5; Poleski, R.19; Ulaczyk, K.5; Pawlak, M.5; Jorgensen, U. G.20; Skottfelt, J.20,21; Popovas, A.20; Ciceri, S.22; Korhonen, H.20,23,24; Kuffmeier, M.20; Evans, D. F.25; Peixinho, N.26,27; Hinse, T. C.28; Burgdorf, M. J.29; Southworth, J.25; Tronsgaard, R.30; Kerins, E.13; Andersen, M. I.23; Rahvar, S.31; Wang YB(王夷博)32; Wertz, O.33; Rabus, M.22,34; Novati, S. Calchi34; D'Ago, G.6,36; Scarpetta, G.6,37; Mancini, L.22,38,39; Abe, F.40; Asakura, Y.40; Bennett, D. P.3,41; Bhattacharya, A.3,41; Donachie, M.42; Evans, P.42; Fukui, A.43; Hirao, Y.44; Itow, Y.40; Kawasaki, K.44; Koshimoto, N.44; Li, M. C. A.42; Ling, C. H.45; Masuda, K.40; Matsubara, Y.40; Muraki, Y.40; Miyazaki, S.44; Nagakane, M.44; Ohnishi, K.46; Rattenbury, N.42; Saito, To47; Sharan, A.42; Shibai, H.44; Sullivan, D. J.48; Sumi, T.44; Suzuki, D.3; Tristram, P. J.49; Yamada, T.50; Yonehara, A.10
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2019-08-01
Volume487Issue:4Pages:4603-4614
DOI10.1093/mnras/stz1404
Contribution Rank第32完成单位
Indexed BySCI
Keywordgravitational lensing: micro methods: observational techniques: photometric Galaxy: bulge
Abstract

We present the analysis of stellar binary microlensing event OGLE-2015-BLG-0060 based on observations obtained from 13 different telescopes. Intensive coverage of the anomalous parts of the light curve was achieved by automated follow-up observations from the robotic telescopes of the Las Cumbres Observatory. We show that, for the first time, all main features of an anomalous microlensing event are well covered by follow-up data, allowing us to estimate the physical parameters of the lens. The strong detection of second-order effects in the event light curve necessitates the inclusion of longer-baseline survey data in order to constrain the parallax vector. We find that the event was most likely caused by a stellar binary-lens with masses and . The distance to the lensing system is 6.41 +/- 0.14kpc and the projected separation between the two components is 13.85 +/- 0.16 au. Alternative interpretations are also considered.

Funding ProjectUniversite Pierre et Marie Curie under grant Emergence@Sorbonne Universites 2016 ; National Science Foundation of China[11333003] ; National Science Foundation of China[11390372] ; STFC[ST/M001296/1] ; DFG priority program Exploring the Diversity of Extrasolar Planets[SPP 1992] ; DFG priority program Exploring the Diversity of Extrasolar Planets[WA 1047/11-1] ; National Science Centre, Poland[MAESTRO 2014/14/A/ST9/00121] ; NASA[NNX15AC97G] ; JSPS KAKENHI[JSPS24253004] ; JSPS KAKENHI[JSPS26247023] ; JSPS KAKENHI[JSPS23340064] ; JSPS KAKENHI[JSPS15H00781] ; JSPS KAKENHI[JP16H06287] ; ESO Telescopes at the La Silla Paranal Observatory[177.D-3023]
Funding OrganizationUniversite Pierre et Marie Curie under grant Emergence@Sorbonne Universites 2016 ; National Science Foundation of China[11333003, 11390372] ; STFC[ST/M001296/1] ; DFG priority program Exploring the Diversity of Extrasolar Planets[SPP 1992] ; DFG priority program Exploring the Diversity of Extrasolar Planets[WA 1047/11-1] ; National Science Centre, Poland[MAESTRO 2014/14/A/ST9/00121] ; NASA[NNX15AC97G] ; JSPS KAKENHI[JSPS24253004, JSPS26247023, JSPS23340064, JSPS15H00781, JP16H06287] ; ESO Telescopes at the La Silla Paranal Observatory[177.D-3023]
Language英语
Subject Area天文学 ; 天体物理学 ; 实测天体物理学 ; 恒星与银河系 ; 恒星天文学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherOXFORD UNIV PRESS
Publication PlaceGREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
ISSN0035-8711
URL查看原文
WOS IDWOS:000475888500013
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordMILKY-WAY ; GRAVITATIONAL LENS ; GALACTIC BULGE ; T-EFF ; PLANETS ; DISCOVERY ; ALGORITHM ; SYSTEMS ; NETWORK ; SEARCH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/20830
Collection系外行星研究组
Corresponding AuthorTsapras, Y.; Cassan, A.
Affiliation1.Zentrum fur Astronomie der Universit ¨ at Heidelberg, Astronomisches ¨ Rechen-Institut, Monchhofstr 12-14, D-69120 Heidelberg, Germany
2.Institut d'Astrophysique de Paris, Sorbonne Universite, CNRS, UMR 7095, ´ 98 bis bd Arago, F-75014 Paris, France
3.Code 667, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA
4.Las Cumbres Observatory Global Telescope Network, 6740 Cortona Drive, suite 102, Goleta, CA 93117, USA
5.Warsaw University Observatory, Al. Ujazdowskie 4, PL-00-478 Warszawa, Poland
6.Dipartimento di Fisica 'E.R. Caianiello', Universita di Salerno, Via Giovanni Paolo II 132, I-84084 Fisciano, Italy
7.Istituto Nazionale di Fisica Nucleare, Sezione di Napoli, Via Cintia, I-80126 Napoli, Italy
8.School of Physical Sciences, University of Tasmania, Private Bag 37 Hobart, Tasmania 7001 Australia
9.New York University Abu Dhabi, PO Box 129188, Saadiyat Island, Abu Dhabi, UAE
10.SUPA, School of Physics & Astronomy, University of St Andrews, North Haugh, St Andrews KY16 9SS, UK
11.Physics Department and Tsinghua Centre for Astrophysics, Tsinghua University, Beijing 100084, China
12.National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012, China
13.Jodrell Bank, School of Physics and Astronomy, The University of Manchester, Oxford Road, Manchester M13 9PL, UK
14.South African Astronomical Observatory, PO Box 9, Observatory 7935, South Africa
15.Planetary and Space Sciences, Department of Physical Sciences, The Open University, Milton Keynes MK7 6AA, UK
16.Institute for Astronomy, University of Edinburgh, Royal Observatory, Edinburgh EH9 3HJ, UK
17.Astrophysics Research Institute, Liverpool John Moores University, Liverpool CH41 1LD, UK
18.International Space Science Institute (ISSI), Hallerstrasse 6, CH-3012 Bern, Switzerland
19.Department of Astronomy, Ohio State University, 140 W. 18th Ave., Columbus, OH 43210, USA
20.Niels Bohr Institute & Centre for Star and Planet Formation, University of Copenhagen Ø ster Voldgade 5, DK-1350 Copenhagen, Denmark
21.Centre for Electronic Imaging, Department of Physical Sciences, The Open University, Milton Keynes MK7 6AA, UK
22.Max Planck Institute for Astronomy, Konigstuhl 17, D-69117 Heidelberg, ¨ Germany
23.Dark Cosmology Centre, Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, DK-2100 Copenhagen Ø, Denmark
24.Finnish Centre for Astronomy with ESO (FINCA), Vaisalantie 20, FI-21500 Piikkio, Finland
25.Astrophysics Group, Keele University, Staffordshire ST5 5BG, UK
26.Unidad de Astronomia, Fac. de Ciencias Basicas, Universidad de Antofagasta, Avda. U. de Antofagasta 02800, Antofagasta, Chile
27.CITEUC-Centre for Earth and Space Science Research of the University of Coimbra, Observatorio Astronomico da Universidade de Coimbra, P-3030-004 Coimbra, Portugal
28.Korea Astronomy & Space Science Institute, 776 Daedukdae-ro, Yuseonggu, 305-348 Daejeon, Republic of Korea
29.Universitat Hamburg, Faculty of Mathematics, Informatics and Natural ¨ Sciences, Department of Earth Sciences, Meteorological Institute, Bundesstraße 55, D-20146 Hamburg, Germany
30.Stellar Astrophysics Centre, Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C, Denmark
31.Department of Physics, Sharif University of Technology, PO Box 11155- 9161 Tehran, Iran
32.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China
33.Institut d'Astrophysique et de Geophysique, Allee du 6 Aout 17, Sart Tilman, Bat. B5c, B-4000 Liege, Belgium
34.Instituto de Astrofisica, Facultad de Fisica, Pontificia Universidad Catolica de Chile, Av. Vicuna Mackenna 4860, 7820436 Macul, Santiago, Chile
35.IPAC, Mail Code 100-22, Caltech, 1200 E. California Blvd., Pasadena, CA 91125, USA
36.INAF – Osservatorio Astronomico di Capodimonte, Salita Moiariello 16, I-80131 Napoli, Italy
37.Istituto Internazionale per gli Alti Studi Scientifici (IIASS), Via G. Pellegrino 19, I-84019 Vietri sul Mare (SA), Italy
38.Department of Physics, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, I-00133 Roma, Italy
39.INAF – Astrophysical Observatory of Turin, Via Osservatorio 20, I-10025 Pino Torinese, Italy
40.Institute for Space-Earth Environmental Research, Nagoya University, Nagoya 464-8601, Japan
41.Department of Astronomy, University of Maryland, College Park, MD 20742, USA
42.Department of Physics, University of Auckland, Private Bag 92019, Auckland, New Zealand
43.Okayama Observatory, National Astronomical Observatory of Japan, 3037-5 Honjo, Kamogata, Asakuchi, Okayama 719-0232, Japan
44.Department of Earth and Space Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
45.Institute of Natural and Mathematical Sciences, Massey University, Auckland 0745, New Zealand
46.Nagano National College of Technology, Nagano 381-8550, Japan
47.Tokyo Metropolitan College of Aeronautics, Tokyo 116-8523, Japan
48.School of Chemical and Physical Sciences, Victoria University, PO Box 600, Wellington 6140, New Zealand
49.University of Canterbury Mt. John Observatory, PO Box 56, Lake Tekapo 8770, New Zealand
50.Department of Physics, Faculty of Science, Kyoto Sangyo University, 603- 8555 Kyoto, Japan
Recommended Citation
GB/T 7714
Tsapras, Y.,Cassan, A.,Ranc, C.,et al. An analysis of binary microlensing event OGLE-2015-BLG-0060[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2019,487(4):4603-4614.
APA Tsapras, Y..,Cassan, A..,Ranc, C..,Bachelet, E..,Street, R..,...&Yonehara, A..(2019).An analysis of binary microlensing event OGLE-2015-BLG-0060.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,487(4),4603-4614.
MLA Tsapras, Y.,et al."An analysis of binary microlensing event OGLE-2015-BLG-0060".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 487.4(2019):4603-4614.
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