• Author: Bozza, V.

    Dipartimento di Fisica ‘E.R. Caianiello’, Università degli Studi di Salerno, Via Ponte Don Melillo, 84084 Fisciano (SA), Italy

  • Author: Dominik, M.

    SUPA, University of St Andrews, School of Physics & Astronomy, North Haugh, St Andrews KY16 9SS

  • Author: Rattenbury, N. J.

    Department of Physics, University of Auckland, Private Bag 92‐019, Auckland 1001, New Zealand

  • Author: Jørgensen, U. G.

    Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, 2100 Copenhagen, Denmark

  • Author: Tsapras, Y.

    Las Cumbres Observatory Global Telescope Network, 6740 Cortona Drive, suite 102, Goleta, CA 93117, USA

  • Author: Bramich, D. M.

    ESO Headquarters, Karl‐Schwarzschild‐Str. 2, 85748 Garching bei München, Germany

  • Author: Udalski, A.

    Warsaw University Observatory, Al. Ujazdowskie 4, 00‐478 Warszawa, Poland

  • Author: Bond, I. A.

    Institute for Information and Mathematical Sciences, Massey University, Private Bag 102‐904, Auckland 1330, New Zealand

  • Author: Liebig, C.

    SUPA, University of St Andrews, School of Physics & Astronomy, North Haugh, St Andrews KY16 9SS

  • Author: Cassan, A.

    Astronomisches Rechen‐Institut, Zentrum für Astronomie der Universität Heidelberg (ZAH), Mönchhofstr. 12‐14, 69120 Heidelberg, Germany

  • Author: Fouqué, P.

    IRAP, CNRS, Université de Toulouse, 14 avenue Edouard Belin, 31400 Toulouse, France

  • Author: Fukui, A.

    Okayama Astrophysical Observatory, National Astronomical Observatory of Japan, Asakuchi, Okayama 719‐0232, Japan

  • Author: Hundertmark, M.

    SUPA, University of St Andrews, School of Physics & Astronomy, North Haugh, St Andrews KY16 9SS

  • Author: Shin, I.‐G.

    Department of Physics, Chungbuk National University, Cheongju 361‐763, South Korea

  • Author: Lee, S. H.

    Department of Physics, Chungbuk National University, Cheongju 361‐763, South Korea

  • Author: Choi, J.‐Y.

    Department of Physics, Chungbuk National University, Cheongju 361‐763, South Korea

  • Author: Park, S.‐Y.

    Department of Physics, Chungbuk National University, Cheongju 361‐763, South Korea

  • Author: Gould, A.

    Department of Astronomy, Ohio State University, 140 West 18th Avenue, Columbus, OH 43210, USA

  • Author: Allan, A.

    School of Physics, University of Exeter, Stocker Road, Exeter EX4 4QL

  • Author: Mao, S.

    University of Manchester

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    Warsaw University Observatory, Al. Ujazdowskie 4, 00‐478 Warszawa, Poland

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    Las Cumbres Observatory Global Telescope Network, 6740 Cortona Drive, suite 102, Goleta, CA 93117, USA

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    South African Large Telescope, PO Box 9, Observatory 7935, South Africa

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    Department of Physics and Astrophysics, Faculty of Science, Nagoya University, Nagoya 464‐8602, Japan

  • Author: Mathiasen, M.

    Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, 2100 Copenhagen, Denmark

  • Author: Hinse, T. C.

    Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, 2100 Copenhagen, Denmark

  • Author: Novati, S. Calchi

    Dipartimento di Fisica ‘E.R. Caianiello’, Università degli Studi di Salerno, Via Ponte Don Melillo, 84084 Fisciano (SA), Italy

  • Author: Harpsøe, K.

    Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, 2100 Copenhagen, Denmark

  • Author: Mancini, L.

    Dipartimento di Fisica ‘E.R. Caianiello’, Università degli Studi di Salerno, Via Ponte Don Melillo, 84084 Fisciano (SA), Italy

  • Author: Scarpetta, G.

    Dipartimento di Fisica ‘E.R. Caianiello’, Università degli Studi di Salerno, Via Ponte Don Melillo, 84084 Fisciano (SA), Italy

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    Astronomisches Rechen‐Institut, Zentrum für Astronomie der Universität Heidelberg (ZAH), Mönchhofstr. 12‐14, 69120 Heidelberg, Germany

  • Author: Burgdorf, M. J.

    Universität Stuttgart

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    SUPA, University of St Andrews, School of Physics & Astronomy, North Haugh, St Andrews KY16 9SS

  • Author: Hornstrup, Allan

    IT-Department, Astrophysics, National Space Institute, Technical University of Denmark, Elektrovej, 2800, Kgs. Lyngby, Denmark

  • Author: Kains, N.

    SUPA, University of St Andrews, School of Physics & Astronomy, North Haugh, St Andrews KY16 9SS

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    University of Manchester

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    Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, 2100 Copenhagen, Denmark

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    Bellatrix Astronomical Observatory, Via Madonna de Loco 47, 03023 Ceccano (FR), Italy

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    Department of Physics, Sharif University of Technology, PO Box 11155‐9161, Tehran, Iran

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    Institut d’Astrophysique et de Géophysique, Allée du 6 Août 17, Sart Tilman, Bât. B5c, 4000 Liège, Belgium

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    Max Planck Institute for Solar System Research, Max‐Planck‐Str. 2, 37191 Katlenburg‐Lindau, Germany

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    Astrophysics Group, Keele University, Staffordshire ST5 5BG

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    Astrophysics Research Institute, Liverpool John Moores University, Twelve Quays House, Egerton Wharf, Birkenhead CH41 1LD

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    Institut d’Astrophysique et de Géophysique, Allée du 6 Août 17, Sart Tilman, Bât. B5c, 4000 Liège, Belgium

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    Instituto de Astrofísica de Andalucía, Glorieta de la Astronomía s/n, 18008 Granada, Spain

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    Astronomisches Rechen‐Institut, Zentrum für Astronomie der Universität Heidelberg (ZAH), Mönchhofstr. 12‐14, 69120 Heidelberg, Germany

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    Astronomisches Rechen‐Institut, Zentrum für Astronomie der Universität Heidelberg (ZAH), Mönchhofstr. 12‐14, 69120 Heidelberg, Germany

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    Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch 8020, New Zealand

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    UPMC‐CNRS, UMR7095, Institut d’Astrophysique de Paris, F‐75014 Paris, France

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    UPMC‐CNRS, UMR7095, Institut d’Astrophysique de Paris, F‐75014 Paris, France

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    Department of Physics, 225 Nieuwland Science Hall, University of Notre Dame, Notre Dame, IN 46556, USA

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    McDonald Observatory, 16120 State Highway Spur 78 #2, Fort Davis, TX 79734, USA

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    School of Mathematics and Physics, University of Tasmania, Private Bag 37, Hobart, TAS 7001, Australia

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    Institute of Geophysics and Planetary Physics (IGPP), L‐413, Lawrence Livermore National Laboratory, PO Box 808, Livermore, CA 94551, USA

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    UPMC‐CNRS, UMR7095, Institut d’Astrophysique de Paris, F‐75014 Paris, France

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    Department of Physics, University of Rijeka, Omladinska 14, 51000 Rijeka, Croatia

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    Technische Universität Wien, Wiedner Hauptstr. 8‐10, 1040 Wien, Austria

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    School of Mathematics and Physics, University of Tasmania, Private Bag 37, Hobart, TAS 7001, Australia

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    NASA Exoplanet Science Institute, Caltech, MS 100‐22, 770 South Wilson Avenue, Pasadena, CA 91125, USA

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    UPMC‐CNRS, UMR7095, Institut d’Astrophysique de Paris, F‐75014 Paris, France

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    UPMC‐CNRS, UMR7095, Institut d’Astrophysique de Paris, F‐75014 Paris, France

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    Perth Observatory, Walnut Road, Bickley, Perth 6076, WA, Australia

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    South African Astronomical Observatory, PO Box 9, Observatory 7935, South Africa

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    Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA

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    Perth Observatory, Walnut Road, Bickley, Perth 6076, WA, Australia

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    Warsaw University Observatory, Al. Ujazdowskie 4, 00‐478 Warszawa, Poland

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    Warsaw University Observatory, Al. Ujazdowskie 4, 00‐478 Warszawa, Poland

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    Warsaw University Observatory, Al. Ujazdowskie 4, 00‐478 Warszawa, Poland

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    Warsaw University Observatory, Al. Ujazdowskie 4, 00‐478 Warszawa, Poland

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    Warsaw University Observatory, Al. Ujazdowskie 4, 00‐478 Warszawa, Poland

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    Warsaw University Observatory, Al. Ujazdowskie 4, 00‐478 Warszawa, Poland

  • Author: DePoy, D. L.

    Department of Physics, Texas A&M University, 4242 TAMU, College Station, TX 77843‐4242, USA

  • Author: Dong, Subo

    Department of Astronomy, Ohio State University, 140 West 18th Avenue, Columbus, OH 43210, USA

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    Department of Physics, Chungbuk National University, Cheongju 361‐763, South Korea

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    Department of Physics, Ohio State University, 191 W. Woodruff, Columbus, OH 43210, USA

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    Korea Astronomy and Space Science Institute, 776 Daedukdae‐ro, Yuseong‐gu, Daejeon 305‐348, South Korea

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    Department of Astronomy, Ohio State University, 140 West 18th Avenue, Columbus, OH 43210, USA

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    Solar‐Terrestrial Environment Laboratory, Nagoya University, Nagoya 464‐8601, Japan

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    Solar‐Terrestrial Environment Laboratory, Nagoya University, Nagoya 464‐8601, Japan

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    School of Chemical and Physical Sciences, Victoria University, Wellington 6140, New Zealand

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    Institute for Information and Mathematical Sciences, Massey University, Private Bag 102‐904, Auckland 1330, New Zealand

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    Institute for Information and Mathematical Sciences, Massey University, Private Bag 102‐904, Auckland 1330, New Zealand

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    Solar‐Terrestrial Environment Laboratory, Nagoya University, Nagoya 464‐8601, Japan

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    Solar‐Terrestrial Environment Laboratory, Nagoya University, Nagoya 464‐8601, Japan

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    Solar‐Terrestrial Environment Laboratory, Nagoya University, Nagoya 464‐8601, Japan

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    Department of Physics, Konan University, Nishiokamoto 8‐9‐1, Kobe 658‐8501, Japan

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    Nagano National College of Technology, Nagano 381‐8550, Japan

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    Department of Physics, University of Auckland, Private Bag 92‐019, Auckland 1001, New Zealand

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    Tokyo Metropolitan College of Aeronautics, Tokyo 116‐8523, Japan

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    Institute for Information and Mathematical Sciences, Massey University, Private Bag 102‐904, Auckland 1330, New Zealand

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    School of Chemical and Physical Sciences, Victoria University, Wellington 6140, New Zealand

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    Solar‐Terrestrial Environment Laboratory, Nagoya University, Nagoya 464‐8601, Japan

  • Author: Suzuki, D.

    Department of Earth and Space Science, Osaka University, 1‐1 Machikaneyama‐cho, Toyonaka, Osaka 560‐0043, Japan

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    Institute for Information and Mathematical Sciences, Massey University, Private Bag 102‐904, Auckland 1330, New Zealand

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    Mt John Observatory, PO Box 56, Lake Tekapo 8770, New Zealand

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    Department of Earth and Space Science, Osaka University, 1‐1 Machikaneyama‐cho, Toyonaka, Osaka 560‐0043, Japan

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    Department of Physics, University of Auckland, Private Bag 92‐019, Auckland 1001, New Zealand

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    South African Large Telescope, PO Box 9, Observatory 7935, South Africa

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    Department of Earth Sciences, National Taiwan Normal University, No. 88, Section 4, Tingzhou Road, Wenshan District, Taipei 11677, Taiwan

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    South African Large Telescope, PO Box 9, Observatory 7935, South Africa

  • Author: Vaisanen, P.

    South African Large Telescope, PO Box 9, Observatory 7935, South Africa

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The microlensing event OGLE‐2008‐BLG‐510 is characterized by an evident asymmetric shape of the peak, promptly detected by the Automated Robotic Terrestrial Exoplanet Microlensing Search (ARTEMiS) system in real time. The skewness of the light curve appears to be compatible both with binary‐lens and binary‐source models, including the possibility that the lens system consists of an M dwarf orbited by a brown dwarf. The detection of this microlensing anomaly and our analysis demonstrate that: (1) automated real‐time detection of weak microlensing anomalies with immediate feedback is feasible, efficient and sensitive, (2) rather common weak features intrinsically come with ambiguities that are not easily resolved from photometric light curves, (3) a modelling approach that finds all features of parameter space rather than just the ‘favourite model’ is required and (4) the data quality is most crucial, where systematics can be confused with real features, in particular small higher order effects such as orbital motion signatures. It moreover becomes apparent that events with weak signatures are a silver mine for statistical studies, although not easy to exploit. Clues about the apparent paucity of both brown‐dwarf companions and binary‐source microlensing events might hide here.
Original languageEnglish
JournalRoyal Astronomical Society. Monthly Notices
Publication date2012
Volume424
Journal number2
Pages902-918
ISSN0035-8711
DOIs
StatePublished
CitationsWeb of Science® Times Cited: 3
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