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OGLE-2005-BLG-153: MICROLENSING DISCOVERY AND CHARACTERIZATION OF A VERY LOW MASS BINARY
| Indexado |
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| DOI | 10.1088/0004-637X/723/1/797 | ||||
| Año | 2010 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
Abstract
The mass function and statistics of binaries provide important diagnostics of the star formation process. Despite this importance, the mass function at low masses remains poorly known due to observational difficulties caused by the faintness of the objects. Here we report the microlensing discovery and characterization of a binary lens composed of very low mass stars just above the hydrogen-burning limit. From the combined measurements of the Einstein radius and microlens parallax, we measure the masses of the binary components of 0.10 +/- 0.01 M-circle dot and 0.09 +/- 0.01 M-circle dot. This discovery demonstrates that microlensing will provide a method to measure the mass function of all Galactic populations of very low mass binaries that is independent of the biases caused by the luminosity of the population.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Hwang, Kyu-Ha | - |
Chungbuk Natl Univ - Corea del Sur
Chungbuk National University - Corea del Sur |
| 1 | Hwang, K. H. | - |
Chungbuk National University - Corea del Sur
|
| 2 | Udalski, Andrzej | Hombre |
Univ Warsaw Observ - Polonia
University of Warsaw - Polonia |
| 3 | Han, Cheongho | - |
Chungbuk Natl Univ - Corea del Sur
Chungbuk National University - Corea del Sur Korea Astronomy and Space Science Institute - Corea del Sur |
| 4 | Ryu, Y. H. | - |
Chungbuk Natl Univ - Corea del Sur
Chungbuk National University - Corea del Sur |
| 4 | Ryu, Y. H. | - |
Chungbuk National University - Corea del Sur
|
| 5 | Bond, I. A. | - |
Massey University Auckland - Nueva Zelanda
Massey Univ - Nueva Zelanda |
| 6 | Beaulieu, J. -P. | Hombre |
UNIV PARIS 06 - Francia
Institut d 'Astrophysique de Paris - Francia Institut d’Astrophysique de Paris - Francia |
| 6 | Beaulieu, J. P. | - |
Institut d’Astrophysique de Paris - Francia
UNIV PARIS 06 - Francia |
| 7 | Dominik, Martin | Hombre |
Univ Warsaw Observ - Polonia
University of St Andrews - Reino Unido University of Warsaw - Polonia |
| 8 | Horne, Keith | Hombre |
Univ St Andrews - Reino Unido
University of St Andrews - Reino Unido |
| 9 | Gould, Andy | Hombre |
OHIO STATE UNIV - Estados Unidos
The Ohio State University - Estados Unidos |
| 10 | Gaudi, B. Scott | - |
OHIO STATE UNIV - Estados Unidos
The Ohio State University - Estados Unidos |
| 11 | Kubiak, M. | - |
Univ Warsaw Observ - Polonia
University of Warsaw - Polonia |
| 12 | Szymanski, Michal K. | Hombre |
Univ Warsaw Observ - Polonia
University of Warsaw - Polonia |
| 13 | Pietrzynski, Grzegorz | Hombre |
Univ Warsaw Observ - Polonia
Universidad de Concepción - Chile University of Warsaw - Polonia |
| 14 | Soszynski, I. | Hombre |
Univ Warsaw Observ - Polonia
University of Warsaw - Polonia |
| 15 | Szewczyk, Olaf | Hombre |
Univ Warsaw Observ - Polonia
Universidad de Concepción - Chile University of Warsaw - Polonia |
| 16 | Ulaczyk, K. | Hombre |
Univ Warsaw Observ - Polonia
University of Warsaw - Polonia |
| 17 | Wyrzykowski, Łukasz | - |
Univ Warsaw Observ - Polonia
UNIV CAMBRIDGE - Reino Unido University of Warsaw - Polonia |
| 17 | Wyrzykowski | - |
University of Warsaw - Polonia
Institute of Astronomy - Reino Unido |
| 17 | Wyrzykowski | - |
University of Warsaw - Polonia
Institute of Astronomy - Reino Unido |
| 17 | Wyrzykowski | - |
University of Warsaw - Polonia
Institute of Astronomy - Reino Unido |
| 17 | Wyrzykowski | - |
University of Warsaw - Polonia
Institute of Astronomy - Reino Unido |
| 17 | Wyrzykowski | - |
University of Warsaw - Polonia
Institute of Astronomy - Reino Unido |
| 17 | Wyrzykowski | - |
University of Warsaw - Polonia
Institute of Astronomy - Reino Unido |
| 17 | Wyrzykowski | - |
University of Warsaw - Polonia
Institute of Astronomy - Reino Unido |
| 18 | Abe, Fumio | Hombre |
Nagoya Univ - Japón
Nagoya University - Japón |
| 19 | Botzler, C. S. | - |
UNIV AUCKLAND - Nueva Zelanda
The University of Auckland - Nueva Zelanda |
| 20 | Hearnshaw, J. B. | - |
Univ Canterbury - Nueva Zelanda
University of Canterbury - Nueva Zelanda |
| 21 | Itow, Yoshitaka | Hombre |
Nagoya Univ - Japón
Nagoya University - Japón |
| 22 | Kamiya, K. | - |
Nagoya Univ - Japón
Nagoya University - Japón |
| 23 | Kilmartin, P. M. | - |
Mt John Observ - Nueva Zelanda
Mount John University Observatory - Nueva Zelanda University of Canterbury Mount John Observatory - Nueva Zelanda |
| 24 | Masuda, K. | - |
Nagoya Univ - Japón
Nagoya University - Japón |
| 25 | Matsubara, Yutaka | Hombre |
Nagoya Univ - Japón
Nagoya University - Japón |
| 26 | Motomura, M. | - |
Nagoya Univ - Japón
Nagoya University - Japón |
| 27 | Muraki, Yasushi | Hombre |
Konan Univ - Japón
Konan University - Japón |
| 28 | Nakamura, S. | - |
Nagoya Univ - Japón
Nagoya University - Japón |
| 29 | Ohnishi, K. | - |
Nagano Natl Coll Technol - Japón
National Institute of Technology, Nagano College - Japón |
| 30 | Okada, C. | - |
Nagoya Univ - Japón
Nagoya University - Japón |
| 31 | Rattenbury, N. | Hombre |
UNIV AUCKLAND - Nueva Zelanda
University of Auckland - Nueva Zelanda The University of Auckland - Nueva Zelanda |
| 32 | Saito, To | - |
Tokyo Metropolitan Coll Ind Technol - Japón
Tokyo Metropolitan College of Industrial Technology - Japón |
| 33 | Sako, T. | - |
Nagoya Univ - Japón
Nagoya University - Japón |
| 34 | Sasaki, Manami | Mujer |
Nagoya Univ - Japón
Nagoya University - Japón |
| 35 | Sullivan, D. J. | - |
Victoria Univ - Nueva Zelanda
Victoria University of Wellington - Nueva Zelanda |
| 36 | Sumi, Takahiro | Hombre |
Nagoya Univ - Japón
Nagoya University - Japón |
| 37 | Tristram, P. J. | - |
Victoria Univ - Nueva Zelanda
Victoria University of Wellington - Nueva Zelanda |
| 38 | Wood, J. N. | - |
UNIV AUCKLAND - Nueva Zelanda
University of Auckland - Nueva Zelanda The University of Auckland - Nueva Zelanda |
| 39 | Yock, P. | Hombre |
UNIV AUCKLAND - Nueva Zelanda
University of Auckland - Nueva Zelanda The University of Auckland - Nueva Zelanda |
| 39 | Yock, P. C.M. | - |
The University of Auckland - Nueva Zelanda
|
| 40 | Yoshioka, T. | - |
Nagoya Univ - Japón
Nagoya University - Japón |
| 41 | Albrow, Michael D. | Hombre |
Univ Canterbury - Nueva Zelanda
University of Canterbury - Nueva Zelanda |
| 42 | Bennett, David P. | Hombre |
UNIV NOTRE DAME - Estados Unidos
University of Notre Dame - Estados Unidos |
| 43 | Bramich, D. M. | - |
ESO - Alemania
Observatorio Europeo Austral - Alemania |
| 44 | Brillant, S. | - |
ESO - Chile
European Southern Observatory Santiago - Chile Observatorio Europeo Austral - Chile |
| 45 | Caldwell, J. A. R. | - |
McDonald Observ - Estados Unidos
|
| 45 | Caldwell, J. A.R. | - |
McDonald Observatory - Estados Unidos
|
| 45 | Caldwell, J. A.R. | - |
McDonald Observatory - Estados Unidos
|
| 46 | Calitz, J. J. | - |
Univ Free State - República de Sudáfrica
University of the Free State - República de Sudáfrica |
| 47 | Cassan, Arnaud | - |
UNIV PARIS 06 - Francia
Institut d 'Astrophysique de Paris - Francia Institut d’Astrophysique de Paris - Francia |
| 48 | Cook, Kem | - |
Lawrence Livermore Natl Lab - Estados Unidos
Lawrence Livermore National Laboratory - Estados Unidos |
| 49 | Corrales, E. | - |
UNIV PARIS 06 - Francia
Institut d 'Astrophysique de Paris - Francia Institut d’Astrophysique de Paris - Francia |
| 50 | Coutures, C. | - |
CEA DAPNIA SPP Saclay - Francia
CEA Saclay - Francia |
| 51 | Desort, M. | - |
UNIV PARIS 06 - Francia
Institut d 'Astrophysique de Paris - Francia Institut d’Astrophysique de Paris - Francia |
| 52 | Dieters, S. | Hombre |
Univ Tasmania - Australia
University of Tasmania - Australia |
| 53 | Prester, D. Dominis | Mujer |
Univ Potsdam - Alemania
Astrophys Inst Potsdam - Alemania Universität Potsdam - Alemania |
| 54 | Donatowicz, J. | - |
ESO - Alemania
Observatorio Europeo Austral - Alemania |
| 55 | Fouque, Pascal | Hombre |
Univ Toulouse 3 - Francia
Universite Paul Sabatier Toulouse III - Francia Observatoire Midi-Pyrénées - Francia |
| 56 | Greenhill, J. | - |
Univ Tasmania - Australia
University of Tasmania - Australia |
| 57 | Harpsoe, K. | - |
Univ Copenhagen - Dinamarca
Geol Museum - Dinamarca Niels Bohr Institute - Dinamarca Geologisk Museum, Statens Naturhistoriske Museum - Denmark - Dinamarca Niels Bohr Institutet - Dinamarca Statens Naturhistoriske Museum - Dinamarca |
| 58 | Hill, K. | - |
Univ Tasmania - Australia
University of Tasmania - Australia |
| 59 | Hoffman, M. | - |
Univ Potsdam - Alemania
Astrophys Inst Potsdam - Alemania Universität Potsdam - Alemania |
| 60 | Jorgensen, U. G. | Hombre |
Univ Copenhagen - Dinamarca
Geol Museum - Dinamarca Niels Bohr Institute - Dinamarca Geologisk Museum, Statens Naturhistoriske Museum - Denmark - Dinamarca Niels Bohr Institutet - Dinamarca Statens Naturhistoriske Museum - Dinamarca |
| 61 | Kane, Stephen R. | Hombre |
UNIV FLORIDA - Estados Unidos
University of Florida - Estados Unidos |
| 62 | Kubas, D. | - |
UNIV PARIS 06 - Francia
Institut d’Astrophysique de Paris - Francia |
| 63 | Martin, R. | - |
Perth Observ - Australia
Perth Observatory - Australia |
| 64 | Marquette, J. -B. | - |
UNIV PARIS 06 - Francia
|
| 64 | Marquette, J. B. | - |
Institut d’Astrophysique de Paris - Francia
|
| 64 | Marquette, J. B. | - |
Institut d’Astrophysique de Paris - Francia
UNIV PARIS 06 - Francia |
| 65 | Meintjes, P. | - |
Univ Free State - República de Sudáfrica
University of the Free State - República de Sudáfrica |
| 66 | Menzies, J. | - |
S African Astron Observ - República de Sudáfrica
South African Astronomical Observatory - República de Sudáfrica |
| 67 | Pollard, K. | - |
Univ Canterbury - Nueva Zelanda
University of Canterbury - Nueva Zelanda |
| 68 | Sahu, K. | Mujer |
Space Telescope Sci Inst - Estados Unidos
STScI - Estados Unidos Space Telescope Science Institute - Estados Unidos |
| 69 | Steele, I. A. | Hombre |
Liverpool John Moores Univ - Reino Unido
Liverpool John Moores University - Reino Unido |
| 70 | Vinter, C. | - |
Univ Copenhagen - Dinamarca
Niels Bohr Institute - Dinamarca Niels Bohr Institutet - Dinamarca |
| 71 | Wambsganss, J. | Hombre |
UNIV HEIDELBERG - Alemania
Astronomisches Rechen-Institut Heidelberg - Alemania Astronomisches Rechen-Institut - Alemania |
| 72 | Williams, A. | - |
Perth Observ - Australia
Perth Observatory - Australia |
| 73 | Woller, K. | - |
Univ Copenhagen - Dinamarca
Niels Bohr Institute - Dinamarca Niels Bohr Institutet - Dinamarca |
| 74 | Burgdorf, Martin J. | Hombre |
Liverpool John Moores Univ - Reino Unido
Liverpool John Moores University - Reino Unido |
| 75 | Snodgrass, Colin | Hombre |
Max Planck Inst Solar Syst Res - Alemania
Max Planck Institute for Solar System Research - Alemania |
| 76 | Bode, Michael | Hombre |
Liverpool John Moores Univ - Reino Unido
Liverpool John Moores University - Reino Unido |
| 77 | Bond, I. A. | - |
Massey Univ - Nueva Zelanda
Texas A&M University - Estados Unidos Texas A&M Univ - Estados Unidos |
| 77 | Depoy, D. L. | - |
Texas A&M Univ - Estados Unidos
|
| 78 | Lee, C. -H. | Hombre |
Korea Astron & Space Sci Inst - Corea del Sur
Korea Astronomy and Space Science Institute - Corea del Sur |
| 79 | Park, Byeong Gon | Mujer |
Korea Astron & Space Sci Inst - Corea del Sur
Korea Astronomy and Space Science Institute - Corea del Sur |
| 79 | Park, B. G. | - |
Korea Astronomy and Space Science Institute - Corea del Sur
|
| 80 | Pogge, Richard W. | Hombre |
OHIO STATE UNIV - Estados Unidos
The Ohio State University - Estados Unidos |
| 81 | OGLE Collaboration | Corporación | |
| 82 | MOA Collaboration | Corporación | |
| 83 | Planet RoboNet Collaboration | Corporación | |
| 84 | FUN Collaboration | Corporación |
| Fuente |
|---|
| National Science Foundation |
| National Research Foundation of Korea |
| NSF |
| NASA |
| STFC |
| Science and Technology Facilities Council |
| Seventh Framework Programme |
| Korea Astronomy and Space Science Institute |
| European Research Council under the European Community |
| Danish Natural Science Research Council |
| Marsden Fund of NZ |
| Dill Faulkes Educational Trust |
| Direct For Mathematical & Physical Scien; Division Of Astronomical Sciences |
| Agradecimiento |
|---|
| We acknowledge the following support: National Research Foundation of Korea 2009-0081561 (C. H.); the OGLE project has received funding from the European Research Council under the European Community's Seventh Framework Programme (FP7/2007-2013)/ERC grant agreement number 246678 to AU. ANR-06-BLAN-0416 (PLANET); MEXT19015005, JSPS18749004, MEXT14002006, JSPS17340074 (T.S.); Grants MEXT14002006, JSPS17340074, and JSPS19340058 (M.O.A.); NSF AST-0757888 (A.G. and S.D.); NASA NNG04GL51G (D.D., A.G., and R.P.); HST-GO-11311 (K.S.); NSF AST-0708890, NASA NNX07AL71G (D.P.B.); Marsden Fund of NZ (I.A.B., J.B.H., D.J.S., S.L.S., and P.C.M.Y.); Korea Astronomy and Space Science Institute (B.-G.P., C.-U.L.); Dill Faulkes Educational Trust (Faulkes Telescope North); the operation of Mt. Canopus Observatory is supported in part by the financial contribution from David Warren. Operation of the Danish 1.54 m telescope at ESO La Silla observatory is supported by the Danish Natural Science Research Council (F.N.U.) |
