Reference : Microlensing Binaries with Candidate Brown Dwarf Companions
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/142586
Microlensing Binaries with Candidate Brown Dwarf Companions
English
Shin, I.-G. [Department of Physics, Institute for Astrophysics, Chungbuk National University, Cheongju 371-763, Republic of Korea ; The μFUN Collaboration.]
Han, C. [Department of Physics, Institute for Astrophysics, Chungbuk National University, Cheongju 371-763, Republic of Korea ; The μFUN Collaboration. ; Corresponding author.]
Gould, A. [Department of Astronomy, Ohio State University, 140 W. 18th Ave., Columbus, OH 43210, USA ; The μFUN Collaboration.]
Udalski, A. [Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland ; The OGLE Collaboration.]
Sumi, T. [Department of Earth and Space Science, Osaka University, Osaka 560-0043, Japan ; The MOA Collaboration.]
Dominik, M. [SUPA, University of St. Andrews, School of Physics & Astronomy, North Haugh, St. Andrews KY16 9SS, UK ; The RoboNet Collaboration. ; The MiNDSTEp Consortium. ; The PLANET Collaboration. ; Royal Society University Research Fellow.]
Beaulieu, J.-P. [Institut d'Astrophysique de Paris, UMR7095 CNRS-Université Pierre & Marie Curie, 98 bis boulevard Arago, F-75014 Paris, France ; The PLANET Collaboration.]
Tsapras, Y. [Las Cumbres Observatory Global Telescope Network, 6740B Cortona Dr., Suite 102, Goleta, CA 93117, USA ; School of Physics and Astronomy, Queen Mary, University of London, Mile End Road, London E1 4NS, UK ; The RoboNet Collaboration.]
Bozza, V. [Dipartimento di Fisica "E. R. Caianiello," Università degli Studi di Salerno, Via S. Allende, I-84081 Baronissi (SA), Italy ; Istituto Nazionale di Fisica Nucleare, Sezione di Napoli, Italy ; The MiNDSTEp Consortium.]
Szymański, M. K. [Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland]
Kubiak, M. [Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland]
Nagaya, M. [Solar-Terrestrial Environment Laboratory, Nagoya University, Nagoya 464-8601, Japan]
Nishimoto, K. [Solar-Terrestrial Environment Laboratory, Nagoya University, Nagoya 464-8601, Japan]
Ohnishi, K. [Nagano National College of Technology, Nagano 381-8550, Japan]
Okumura, T. [Solar-Terrestrial Environment Laboratory, Nagoya University, Nagoya 464-8601, Japan]
Omori, K. [Solar-Terrestrial Environment Laboratory, Nagoya University, Nagoya 464-8601, Japan]
Perrott, Y. C. [Department of Physics, University of Auckland, Private Bag 92019, Auckland, New Zealand]
Rattenbury, N. [Department of Physics, University of Auckland, Private Bag 92019, Auckland, New Zealand]
Saito, To [Tokyo Metropolitan College of Industrial Technology, Tokyo 116-8523, Japan]
Skuljan, L. [Institute of Information and Mathematical Sciences, Massey University, Private Bag 102-904, North Shore Mail Centre, Auckland, New Zealand]
Sullivan, D. J. [School of Chemical and Physical Sciences, Victoria University, Wellington, New Zealand]
Dreizler, S. [Institut für Astrophysik, Georg-August-Universität, Friedrich-Hund-Platz 1, D-37077 Göttingen, Germany]
Suzuki, D. [Department of Earth and Space Science, Osaka University, Osaka 560-0043, Japan]
Sweatman, W. L. [Institute of Information and Mathematical Sciences, Massey University, Private Bag 102-904, North Shore Mail Centre, Auckland, New Zealand]
Tristram, P. J. [Mt. John Observatory, P.O. Box 56, Lake Tekapo 8770, New Zealand]
Wada, K. [Department of Earth and Space Science, Osaka University, Osaka 560-0043, Japan]
Yock, P. C. M. [Department of Physics, University of Auckland, Private Bag 92019, Auckland, New Zealand]
The MOA Collaboration [> >]
Christie, G. W. [Auckland Observatory, P.O. Box 24-180, Auckland, New Zealand]
Depoy, D. L. [Department of Physics, Texas A&M University, College Station, TX 77843-4242, USA]
Dong, S. [Institute for Advanced Study, Einstein Dr., Princeton, NJ 08540, USA]
Gal-Yam, A. [Benoziyo Center for Astrophysics, The Weizmann Institute, Rehovot 76100, Israel]
Fang, X.-S. [National Astronomical Observatories/Yunnan Observatory, Joint Laboratory for Optical Astronomy, Chinese Academy of Sciences, Kunming 650011, China]
Gaudi, B. S. [Department of Astronomy, Ohio State University, 140 W. 18th Ave., Columbus, OH 43210, USA]
Hung, L.-W. [Department of Physics & Astronomy, University of California, Los Angeles, CA 90095, USA]
Janczak, J. [Department of Physics, Ohio State University, 191 W. Woodruff, Columbus, OH 43210, USA]
Kaspi, S. [School of Physics and Astronomy, Tel-Aviv University, Tel Aviv 69978, Israel]
Maoz, D. [School of Physics and Astronomy, Tel-Aviv University, Tel Aviv 69978, Israel]
McCormick, J. [Farm Cove Observatory, Pakuranga, Auckland]
McGregor, D. [Department of Astronomy, Ohio State University, 140 W. 18th Ave., Columbus, OH 43210, USA]
Moorhouse, D. [Kumeu Observatory, Kumeu, New Zealand]
Muñoz, J. A. [Departamento de Astronomiá y Astrofísica, Universidad de Valencia, E-46100 Burjassot, Valencia, Spain]
Natusch, T. [Auckland Observatory, P.O. Box 24-180, Auckland, New Zealand]
Grundahl, F. [Department of Physics & Astronomy, Aarhus Universitet, Ny Munkegade, DK-8000 Århus C, Denmark]
Nelson, C. [College of Optical Sciences, University of Arizona, 1630 E. University Blvd., Tucson, AZ 85721, USA]
Pogge, R. W. [Department of Astronomy, Ohio State University, 140 W. 18th Ave., Columbus, OH 43210, USA]
Tan, T.-G. [Perth Exoplanet Survey Telescope, Perth, Australia]
Polishook, D. [School of Physics and Astronomy, Tel-Aviv University, Tel Aviv 69978, Israel]
Shvartzvald, Y. [School of Physics and Astronomy, Tel-Aviv University, Tel Aviv 69978, Israel]
Shporer, A. [Las Cumbres Observatory Global Telescope Network, 6740B Cortona Dr., Suite 102, Goleta, CA 93117, USA ; Department of Physics, University of California, Santa Barbara, CA 93106, USA]
Thornley, G. [Kumeu Observatory, Kumeu, New Zealand]
Malamud, U. [School of Physics and Astronomy, Tel-Aviv University, Tel Aviv 69978, Israel]
Yee, J. C. [Department of Astronomy, Ohio State University, 140 W. 18th Ave., Columbus, OH 43210, USA]
Choi, J.-Y. [Department of Physics, Institute for Astrophysics, Chungbuk National University, Cheongju 371-763, Republic of Korea]
Gu, C.-H. [National Astronomical Observatories/Yunnan Observatory, Joint Laboratory for Optical Astronomy, Chinese Academy of Sciences, Kunming 650011, China]
Jung, Y.-K. [Department of Physics, Institute for Astrophysics, Chungbuk National University, Cheongju 371-763, Republic of Korea]
Park, H. [Department of Physics, Institute for Astrophysics, Chungbuk National University, Cheongju 371-763, Republic of Korea]
Lee, C.-U. [Korea Astronomy and Space Science Institute, 776 Daedukdae-ro, Yuseong-gu, Daejeon 305-348, Republic of Korea]
Park, B.-G. [Korea Astronomy and Space Science Institute, 776 Daedukdae-ro, Yuseong-gu, Daejeon 305-348, Republic of Korea]
Koo, J.-R. [Korea Astronomy and Space Science Institute, 776 Daedukdae-ro, Yuseong-gu, Daejeon 305-348, Republic of Korea]
The μFUN Collaboration [> >]
Bajek, D. [SUPA, University of St. Andrews, School of Physics & Astronomy, North Haugh, St. Andrews KY16 9SS, UK]
Bramich, D. M. [European Southern Observatory, Karl-Schwarzschild-Strasse 2, D-85748 Garching bei München, Germany ; The MiNDSTEp Consortium.]
Browne, P. [SUPA, University of St. Andrews, School of Physics & Astronomy, North Haugh, St. Andrews KY16 9SS, UK; The MiNDSTEp Consortium.]
Horne, K. [SUPA, University of St. Andrews, School of Physics & Astronomy, North Haugh, St. Andrews KY16 9SS, UK; The PLANET Collaboration.]
Hardis, S. [Niels Bohr Institute, University of Copenhagen, Juliane Maries vej 30, DK-2100 Copenhagen, Denmark]
Ipatov, S. [Qatar Foundation, P.O. Box 5825, Doha, Qatar]
Snodgrass, C. [Max-Planck-Institut für Sonnensystemforschung, Max-Planck-Strasse 2, D-37191 Katlenburg-Lindau, Germany ; European Southern Observatory, Casilla 19001, Vitacura 19, Santiago, Chile ; The MiNDSTEp Consortium.]
Steele, I. [Astrophysics Research Institute, Liverpool John Moores University, Egerton Wharf, Birkenhead CH41 1LD, UK]
Street, R. [Las Cumbres Observatory Global Telescope Network, 6740B Cortona Dr., Suite 102, Goleta, CA 93117, USA]
Alsubai, K. A. [Qatar Foundation, P.O. Box 5825, Doha, Qatar; The RoboNet Collaboration.]
Burgdorf, M. J. [HE Space Operations GmbH, Flughafenallee 24, D-28199 Bremen, Germany]
Calchi Novati, S. [Dipartimento di Fisica "E. R. Caianiello," Università degli Studi di Salerno, Via S. Allende, I-84081 Baronissi (SA), Italy ; Istituto Internazionale per gli Alti Studi Scientifici (IIASS), Vietri Sul Mare (SA), Italy]
Dodds, P. [SUPA, University of St. Andrews, School of Physics & Astronomy, North Haugh, St. Andrews KY16 9SS, UK; The RoboNet Collaboration.]
Harpsøe, K. [Niels Bohr Institute, University of Copenhagen, Juliane Maries vej 30, DK-2100 Copenhagen, Denmark; Centre for Star and Planet Formation, Geological Museum, Øster Voldgade 5, DK-1350 Copenhagen, Denmark]
Hinse, T. C. [Korea Astronomy and Space Science Institute, 776 Daedukdae-ro, Yuseong-gu, Daejeon 305-348, Republic of Korea; Niels Bohr Institute, University of Copenhagen, Juliane Maries vej 30, DK-2100 Copenhagen, Denmark; Armagh Observatory, College Hill, Armagh BT61 9DG, UK]
Hundertmark, M. [SUPA, University of St. Andrews, School of Physics & Astronomy, North Haugh, St. Andrews KY16 9SS, UK; Institut für Astrophysik, Georg-August-Universität, Friedrich-Hund-Platz 1, D-37077 Göttingen, Germany; The RoboNet Collaboration.]
Jessen-Hansen, J. [Department of Physics & Astronomy, Aarhus Universitet, Ny Munkegade, DK-8000 Århus C, Denmark]
Jørgensen, U. G. [Niels Bohr Institute, University of Copenhagen, Juliane Maries vej 30, DK-2100 Copenhagen, Denmark; Centre for Star and Planet Formation, Geological Museum, Øster Voldgade 5, DK-1350 Copenhagen, Denmark]
Soszyński, I. [Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland]
Kains, N. [SUPA, University of St. Andrews, School of Physics & Astronomy, North Haugh, St. Andrews KY16 9SS, UK; European Southern Observatory, Karl-Schwarzschild-Strasse 2, D-85748 Garching bei München, Germany ; The RoboNet Collaboration.]
Kerins, E. [Jodrell Bank Centre for Astrophysics, University of Manchester, Oxford Road, Manchester M13 9PL, UK]
Liebig, C. [SUPA, University of St. Andrews, School of Physics & Astronomy, North Haugh, St. Andrews KY16 9SS, UK; Astronomisches Rechen-Institut, Zentrum für Astronomie der Universität Heidelberg (ZAH), Mönchhofstrasse 12-14, D-69120 Heidelberg, Germany ; The RoboNet Collaboration.]
Lund, M. [Department of Physics & Astronomy, Aarhus Universitet, Ny Munkegade, DK-8000 Århus C, Denmark]
Lundkvist, M. [Department of Physics & Astronomy, Aarhus Universitet, Ny Munkegade, DK-8000 Århus C, Denmark]
Mancini, L. [Dipartimento di Fisica "E. R. Caianiello," Università degli Studi di Salerno, Via S. Allende, I-84081 Baronissi (SA), Italy ; Max Planck Institute for Astronomy, Königstuhl 17, D-69117 Heidelberg, Germany]
Mathiasen, M. [Niels Bohr Institute, University of Copenhagen, Juliane Maries vej 30, DK-2100 Copenhagen, Denmark]
Hornstrup, A. [Institut for Rumforskning og-teknologi, Danmarks Tekniske Universitet, Juliane Maries Vej 30, DK-2100 Copenhagen, Denmark]
Penny, M. T. [Jodrell Bank Centre for Astrophysics, University of Manchester, Oxford Road, Manchester M13 9PL, UK]
Proft, S. [Astronomisches Rechen-Institut, Zentrum für Astronomie der Universität Heidelberg (ZAH), Mönchhofstrasse 12-14, D-69120 Heidelberg, Germany]
Pietrzyński, G. [Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland; Departamento de Astronomia, Universidad de Concepción, Casilla 160-C, Concepción, Chile]
Rahvar, S. [Department of Physics, Sharif University of Technology, P.O. Box 11155-9161, Tehran, Iran ; School of Physics and Astronomy, Queen Mary, University of London, Mile End Road, London E1 4NS, UK ; Perimeter Institute for Theoretical Physics, 31 Caroline St. N, Waterloo, Ontario ON N2L 2Y5, Canada]
Ricci, Davide [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS) >]
Scarpetta, G. [Dipartimento di Fisica "E. R. Caianiello," Università degli Studi di Salerno, Via S. Allende, I-84081 Baronissi (SA), Italy ; INFN, Gruppo Collegato di Salerno, Sezione di Napoli, Italy]
Skottfelt, J. [Niels Bohr Institute, University of Copenhagen, Juliane Maries vej 30, DK-2100 Copenhagen, Denmark]
Southworth, J. [Astrophysics Group, Keele University, Newcastle-under-Lyme ST5 5BG, UK]
Surdej, Jean mailto [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS) >]
Tregloan-Reed, J. [Astrophysics Group, Keele University, Newcastle-under-Lyme ST5 5BG, UK]
Wertz, Olivier [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS) >]
Zimmer, F. [Astronomisches Rechen-Institut, Zentrum für Astronomie der Universität Heidelberg (ZAH), Mönchhofstrasse 12-14, D-69120 Heidelberg, Germany]
Albrow, M. D. [Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch 8020, New Zealand]
Poleski, R. [Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland]
Batista, V. [Department of Astronomy, Ohio State University, 140 W. 18th Ave., Columbus, OH 43210, USA; The μFUN Collaboration.]
Brillant, S. [European Southern Observatory, Casilla 19001, Vitacura 19, Santiago, Chile]
Caldwell, J. A. R. [McDonald Observatory, 16120 State Hwy Spur 78 #2, Fort Davis, TX 79334, USA]
Calitz, J. J. [Faculty of Natural and Agricultural Sciences, Department of Physics, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa]
Cassan, A. [Institut d'Astrophysique de Paris, UMR7095 CNRS-Université Pierre & Marie Curie, 98 bis boulevard Arago, F-75014 Paris, France]
Cole, A. [School of Math and Physics, University of Tasmania, Private Bag 37, GPO Hobart, Tasmania 7001, Australia]
Cook, K. H. [Institute of Geophysics and Planetary Physics (IGPP), L-413, Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, CA 94451, USA]
Corrales, E. [Institut d'Astrophysique de Paris, UMR7095 CNRS-Université Pierre & Marie Curie, 98 bis boulevard Arago, F-75014 Paris, France]
Coutures, Ch [Institut d'Astrophysique de Paris, UMR7095 CNRS-Université Pierre & Marie Curie, 98 bis boulevard Arago, F-75014 Paris, France]
Dieters, S. [Institut d'Astrophysique de Paris, UMR7095 CNRS-Université Pierre & Marie Curie, 98 bis boulevard Arago, F-75014 Paris, France; LATT, Université de Toulouse, CNRS, 14 Avenue Edouard Belin, F-31400 Toulouse, France]
Ulaczyk, K. [Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland]
Dominis Prester, D. [Faculty of Arts and Sciences, Physics Department, University of Rijeka, Omladinska 14, 51000 Rijeka, Croatia]
Donatowicz, J. [Department of Computing, Technical University of Vienna, Wiedner Hauptstrasse 10, A-1040 Vienna, Austria]
Fouqué, P. [LATT, Université de Toulouse, CNRS, 14 Avenue Edouard Belin, F-31400 Toulouse, France]
Greenhill, J. [School of Math and Physics, University of Tasmania, Private Bag 37, GPO Hobart, Tasmania 7001, Australia]
Hill, K. [School of Math and Physics, University of Tasmania, Private Bag 37, GPO Hobart, Tasmania 7001, Australia]
Hoffman, M. [Faculty of Natural and Agricultural Sciences, Department of Physics, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa]
Kane, S. R. [NASA Exoplanet Science Institute, Caltech, MS 100-22, 770 South Wilson Avenue, Pasadena, CA 91125, USA]
Kubas, D. [Institut d'Astrophysique de Paris, UMR7095 CNRS-Université Pierre & Marie Curie, 98 bis boulevard Arago, F-75014 Paris, France; European Southern Observatory, Casilla 19001, Vitacura 19, Santiago, Chile]
Marquette, J.-B. [Institut d'Astrophysique de Paris, UMR7095 CNRS-Université Pierre & Marie Curie, 98 bis boulevard Arago, F-75014 Paris, France]
Martin, R. [Perth Observatory, Walnut Road, Bickley, Perth 6076, Australia]
Pietrukowicz, P. [Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland]
Meintjes, P. [Faculty of Natural and Agricultural Sciences, Department of Physics, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa]
Menzies, J. [South African Astronomical Observatory, P.O. Box 9, Observatory 7935, South Africa]
Pollard, K. R. [Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch 8020, New Zealand]
Sahu, K. C. [Space Telescope Science Institute, 3700 San Martin Dr., Baltimore, MD 21218, USA ; The MiNDSTEp Consortium.]
Wambsganss, J. [Astronomisches Rechen-Institut (ARI), Zentrum für Astronomie der Universität Heidelberg (ZAH), Mönchhofstrasse 12-14, D-69120 Heidelberg, Germany]
Williams, A. [Perth Observatory, Walnut Road, Bickley, Perth 6076, Australia; The MiNDSTEp Consortium.]
Vinter, C. [Niels Bohr Institute, University of Copenhagen, Juliane Maries vej 30, DK-2100 Copenhagen, Denmark]
Zub, M. [Astronomisches Rechen-Institut (ARI), Zentrum für Astronomie der Universität Heidelberg (ZAH), Mönchhofstrasse 12-14, D-69120 Heidelberg, Germany)]
Kozłowski, S. [Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland]
Skowron, J. [Department of Astronomy, Ohio State University, 140 W. 18th Ave., Columbus, OH 43210, USA ; The μFUN Collaboration.]
Wyrzykowski, Ł. [Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland; Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK]
The OGLE Collaboration [> >]
Abe, F. [Solar-Terrestrial Environment Laboratory, Nagoya University, Nagoya 464-8601, Japan]
Bennett, D. P. [Department of Physics, University of Notre Dame, Notre Dame, IN 46556, USA ; The PLANET Collaboration.]
Bond, I. A. [Institute of Information and Mathematical Sciences, Massey University, Private Bag 102-904, North Shore Mail Centre, Auckland, New Zealand]
Botzler, C. S. [Department of Physics, University of Auckland, Private Bag 92019, Auckland, New Zealand]
Freeman, M. [Department of Physics, University of Auckland, Private Bag 92019, Auckland, New Zealand]
Fukui, A. [Solar-Terrestrial Environment Laboratory, Nagoya University, Nagoya 464-8601, Japan]
Furusawa, K. [Solar-Terrestrial Environment Laboratory, Nagoya University, Nagoya 464-8601, Japan]
Hayashi, F. [Solar-Terrestrial Environment Laboratory, Nagoya University, Nagoya 464-8601, Japan]
Hearnshaw, J. B. [Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch 8020, New Zealand]
Hosaka, S. [Solar-Terrestrial Environment Laboratory, Nagoya University, Nagoya 464-8601, Japan]
Itow, Y. [Solar-Terrestrial Environment Laboratory, Nagoya University, Nagoya 464-8601, Japan]
Kamiya, K. [Solar-Terrestrial Environment Laboratory, Nagoya University, Nagoya 464-8601, Japan]
Kilmartin, P. M. [Mt. John Observatory, P.O. Box 56, Lake Tekapo 8770, New Zealand]
Kobara, S. [Solar-Terrestrial Environment Laboratory, Nagoya University, Nagoya 464-8601, Japan]
Korpela, A. [School of Chemical and Physical Sciences, Victoria University, Wellington, New Zealand]
Lin, W. [Institute of Information and Mathematical Sciences, Massey University, Private Bag 102-904, North Shore Mail Centre, Auckland, New Zealand]
Ling, C. H. [Institute of Information and Mathematical Sciences, Massey University, Private Bag 102-904, North Shore Mail Centre, Auckland, New Zealand]
Makita, S. [Solar-Terrestrial Environment Laboratory, Nagoya University, Nagoya 464-8601, Japan]
Masuda, K. [Solar-Terrestrial Environment Laboratory, Nagoya University, Nagoya 464-8601, Japan]
Matsubara, Y. [Solar-Terrestrial Environment Laboratory, Nagoya University, Nagoya 464-8601, Japan]
Miyake, N. [Solar-Terrestrial Environment Laboratory, Nagoya University, Nagoya 464-8601, Japan]
Muraki, Y. [Department of Physics, Konan University, Nishiokamoto 8-9-1, Kobe 658-8501, Japan]
1-Dec-2012
Astrophysical Journal
760
116
Yes (verified by ORBi)
International
0004-637X
1538-4357
[en] binaries: general ; brown dwarfs ; gravitational lensing: micro
[en] Brown dwarfs are important objects because they may provide a missing link between stars and planets, two populations that have dramatically different formation histories. In this paper, we present the candidate binaries with brown dwarf companions that are found by analyzing binary microlensing events discovered during the 2004-2011 observation seasons. Based on the low mass ratio criterion of q < 0.2, we found seven candidate events: OGLE-2004-BLG-035, OGLE-2004-BLG-039, OGLE-2007-BLG-006, OGLE-2007-BLG-399/MOA-2007-BLG-334, MOA-2011-BLG-104/OGLE-2011-BLG-0172, MOA-2011-BLG-149, and MOA-201-BLG-278/OGLE-2011-BLG-012N. Among them, we are able to confirm that the companions of the lenses of MOA-2011-BLG-104/OGLE-2011-BLG-0172 and MOA-2011-BLG-149 are brown dwarfs by determining the mass of the lens based on the simultaneous measurement of the Einstein radius and the lens parallax. The measured masses of the brown dwarf companions are 0.02 ± 0.01 M [SUB]&sun;[/SUB] and 0.019 ± 0.002 M [SUB]&sun;[/SUB] for MOA-2011-BLG-104/OGLE-2011-BLG-0172 and MOA-2011-BLG-149, respectively, and both companions are orbiting low-mass M dwarf host stars. More microlensing brown dwarfs are expected to be detected as the number of lensing events with well-covered light curves increases with new-generation searches.
http://hdl.handle.net/2268/142586
10.1088/0004-637X/760/2/116
http://esoads.eso.org/abs/2012ApJ...760..116S
http://de.arxiv.org/abs/1208.2323

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