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Microlensing discovery of a tight, low-mass-ratio planetary-mass object around an old field brown dwarf
| Indexado |
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| DOI | 10.1088/0004-637X/778/1/38 | ||||
| Año | 2013 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
Abstract
Observations of accretion disks around young brown dwarfs (BDs) have led to the speculation that they may form planetary systems similar to normal stars. While there have been several detections of planetary-mass objects around BDs (2MASS 1207-3932 and 2MASS 0441-2301), these companions have relatively large mass ratios and projected separations, suggesting that they formed in a manner analogous to stellar binaries. We present the discovery of a planetary-mass object orbiting a field BD via gravitational microlensing, OGLE-2012-BLG-0358Lb. The system is a low secondary/primary mass ratio (0.080 +/- 0.001), relatively tightly separated (similar to 0.87 AU) binary composed of a planetary-mass object with 1.9 +/- 0.2 Jupiter masses orbiting a BD with a mass 0.022M(circle dot). The relatively small mass ratio and separation suggest that the companion may have formed in a protoplanetary disk around the BD host in a manner analogous to planets.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Han, Cheongho | - |
Chungbuk Natl Univ - Corea del Sur
Chungbuk National University - Corea del Sur |
| 2 | Jung, Youn Kil | - |
Chungbuk Natl Univ - Corea del Sur
Chungbuk National University - Corea del Sur |
| 3 | Udalski, Andrzej | Hombre |
Univ Warsaw Observ - Polonia
University of Warsaw - Polonia |
| 4 | Sumi, Takahiro | Hombre |
Osaka Univ - Japón
Osaka University - Japón |
| 5 | Gaudi, B. Scott | - |
OHIO STATE UNIV - Estados Unidos
The Ohio State University - Estados Unidos |
| 7 | Bennett, David P. | Hombre |
UNIV NOTRE DAME - Estados Unidos
University of Notre Dame - Estados Unidos |
| 8 | Tsapras, Yiannis | - |
Las Cumbres Observ Global Telescope Network - Estados Unidos
Queen Mary Univ London - Reino Unido Las Cumbres Observatory Global Telescope Network, Inc - Estados Unidos Queen Mary, University of London - Reino Unido Queen Mary University of London - Reino Unido |
| 9 | Szymanski, Michal K. | Hombre |
Univ Warsaw Observ - Polonia
University of Warsaw - Polonia |
| 10 | Kubiak, M. | - |
Univ Warsaw Observ - Polonia
|
| 11 | Pietrzynski, Grzegorz | Hombre |
Univ Warsaw Observ - Polonia
Universidad de Concepción - Chile University of Warsaw - Polonia |
| 12 | Soszynski, I. | Hombre |
Univ Warsaw Observ - Polonia
University of Warsaw - Polonia |
| 13 | Skowron, D. M. | Mujer |
Univ Warsaw Observ - Polonia
University of Warsaw - Polonia |
| 14 | Kozlowski, Szymon | Hombre |
Univ Warsaw Observ - Polonia
University of Warsaw - Polonia |
| 15 | Poleski, Radoslaw | Hombre |
Univ Warsaw Observ - Polonia
OHIO STATE UNIV - Estados Unidos University of Warsaw - Polonia The Ohio State University - Estados Unidos |
| 16 | Ulaczyk, K. | Hombre |
Univ Warsaw Observ - Polonia
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, Łukasz | - |
Univ Warsaw Observ - Polonia
UNIV CAMBRIDGE - Reino Unido University of Warsaw - Polonia |
| 18 | Pietrukowicz, Pawell | Hombre |
Univ Warsaw Observ - Polonia
University of Warsaw - Polonia |
| 19 | Abe, F. | - |
Nagoya Univ - Japón
|
| 20 | Bond, I. A. | - |
Massey Univ - Nueva Zelanda
|
| 21 | Botzler, C. S. | - |
UNIV AUCKLAND - Nueva Zelanda
|
| 22 | Chote, Paul | Hombre |
Victoria Univ - Nueva Zelanda
Victoria University of Wellington - Nueva Zelanda |
| 23 | Freeman, M. | - |
UNIV AUCKLAND - Nueva Zelanda
University of Auckland - Nueva Zelanda The University of Auckland - Nueva Zelanda |
| 24 | Fukui, Akihiko | Hombre |
Natl Astron Observ Japan - Japón
National Institutes of Natural Sciences - National Astronomical Observatory of Japan - Japón |
| 25 | Furusawa, Kotaro | Hombre |
Nagoya Univ - Japón
Nagoya University - Japón |
| 26 | HARRIS-DIEZ, PAUL RICHARD | Hombre |
Victoria Univ - Nueva Zelanda
Victoria University of Wellington - Nueva Zelanda |
| 27 | Itow, Yoshitaka | Hombre |
Nagoya Univ - Japón
Nagoya University - Japón |
| 28 | Ling, C. H. | - |
Massey Univ - Nueva Zelanda
|
| 29 | Masuda, K. | - |
Nagoya Univ - Japón
|
| 30 | Matsubara, Yutaka | Hombre |
Nagoya Univ - Japón
Nagoya University - Japón |
| 31 | Muraki, Yasushi | Hombre |
Nagoya Univ - Japón
Nagoya University - Japón |
| 32 | Ohnishi, K. | - |
Nagano Natl Coll Technol - Japón
|
| 33 | Rattenbury, N. | Hombre |
UNIV AUCKLAND - Nueva Zelanda
University of Auckland - Nueva Zelanda The University of Auckland - Nueva Zelanda |
| 34 | Saito, To | - |
Tokyo Metropolitan Coll Aeronaut - Japón
|
| 35 | Sullivan, D. J. | - |
Victoria Univ - Nueva Zelanda
|
| 36 | Sweatman, W. L. | - |
Massey Univ - Nueva Zelanda
|
| 37 | Suzuki, D. | Hombre |
Osaka Univ - Japón
Osaka University - Japón |
| 38 | Tristram, P. J. | - |
Mt John Univ Observ - Nueva Zelanda
|
| 39 | Wada, K. | Hombre |
Osaka Univ - Japón
Osaka University - Japón |
| 40 | Yock, P. | Hombre |
UNIV AUCKLAND - Nueva Zelanda
University of Auckland - Nueva Zelanda The University of Auckland - Nueva Zelanda |
| 41 | Batista, V. | - |
OHIO STATE UNIV - Estados Unidos
The Ohio State University - Estados Unidos |
| 42 | Christie, G. | - |
Auckland Observ - Nueva Zelanda
|
| 43 | Choi, J. -Y. | - |
Chungbuk Natl Univ - Corea del Sur
Chungbuk National University - Corea del Sur |
| 44 | DePoy, D. L. | - |
Texas A&M Univ - Estados Unidos
|
| 45 | Dong, Subo | - |
Inst Adv Study - Estados Unidos
Institute for Advanced Studies - Estados Unidos |
| 46 | Hwang, Kyu-Ha | - |
Chungbuk Natl Univ - Corea del Sur
Chungbuk National University - Corea del Sur |
| 47 | Kavka, A. | - |
OHIO STATE UNIV - Estados Unidos
|
| 48 | Lee, C. -H. | Hombre |
Korea Astron & Space Sci Inst - Corea del Sur
Korea Astronomy and Space Science Institute - Corea del Sur |
| 49 | Monard, L. A. G. | - |
Klein Karoo Observ - República de Sudáfrica
Bronberg Observ - República de Sudáfrica |
| 49 | Monard, L. A.G. | - |
Bronberg Observatory - República de Sudáfrica
|
| 50 | Natusch, T. | - |
Auckland Observ - Nueva Zelanda
|
| 51 | Ngan, H. | - |
Auckland Observ - Nueva Zelanda
|
| 52 | Park, H. | - |
Chungbuk Natl Univ - Corea del Sur
|
| 53 | Pogge, Richard W. | Hombre |
OHIO STATE UNIV - Estados Unidos
The Ohio State University - Estados Unidos |
| 54 | Porritt, I. | - |
Turitea Observ - Nueva Zelanda
|
| 55 | Christiansen, Jessie | Mujer |
Chungbuk Natl Univ - Corea del Sur
Chungbuk National University - Corea del Sur |
| 56 | Tan, T. -G. | - |
Perth Exoplanet Survey Telescope - Australia
|
| 57 | Yee, Jennifer C. | Mujer |
OHIO STATE UNIV - Estados Unidos
The Ohio State University - Estados Unidos |
| 58 | Alsubai, K. A. | - |
Alsubai Estab Sci Studies - Catar
|
| 59 | Bozza, Valerio | Hombre |
Univ Salerno - Italia
Università di Salerno - Italia Università degli Studi di Salerno - Italia |
| 60 | Bramich, D. M. | - |
ESO - Alemania
|
| 61 | Browne, P. | - |
Univ St Andrews - Reino Unido
|
| 62 | Dominik, Martin | Hombre |
Univ St Andrews - Reino Unido
University of St Andrews - Reino Unido |
| 63 | Horne, Keith | Hombre |
Univ St Andrews - Reino Unido
University of St Andrews - Reino Unido |
| 64 | Hundertmark, Markus | Hombre |
Univ St Andrews - Reino Unido
University of St Andrews - Reino Unido |
| 65 | Ipatov, S. | - |
Alsubai Estab Sci Studies - Catar
|
| 66 | Kains, N. | Hombre |
ESO - Alemania
Observatorio Europeo Austral - Alemania |
| 67 | Gould, A. | - |
OHIO STATE UNIV - Estados Unidos
|
| 67 | Liebig, C. | - |
Univ St Andrews - Reino Unido
|
| 68 | Snodgrass, Colin | Hombre |
Max Planck Inst Solar Syst Res - Alemania
Max Planck Institute for Solar System Research - Alemania |
| 69 | Steele, I. A. | Hombre |
Liverpool John Moores Univ - Reino Unido
Liverpool John Moores University - Reino Unido |
| 70 | Street, Rachel A. | Mujer |
Las Cumbres Observ Global Telescope Network - Estados Unidos
Las Cumbres Observatory Global Telescope Network, Inc - Estados Unidos |
| 71 | OGLE Collaboration | Corporación | |
| 72 | MOA Collaboration | Corporación | |
| 73 | FUN Collaboration | Corporación | |
| 74 | RoboNet Collaboration | Corporación |
| Fuente |
|---|
| National Science Foundation |
| NSF |
| European Union Seventh Framework Programme |
| NASA |
| Japan Society for the Promotion of Science |
| ERC |
| Science and Technology Facilities Council |
| National Aeronautics and Space Administration |
| JSPS |
| NASA through the Sagan Fellowship Program |
| Qatar National Research Fund |
| European Community's Seventh Framework Programme |
| NPRP |
| Creative Research Initiative Program of the National Research Foundation of Korea |
| European Research Council under the European Community's Seventh Framework Programme |
| Fonds National de la Reserche Luxembourg |
| Agradecimiento |
|---|
| Work by C.H. was supported by the Creative Research Initiative Program (2009-0081561) of the National Research Foundation of Korea. 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 No. 246678. The MOA experiment was supported by grants JSPS22403003 and JSPS23340064. T.S. acknowledges support from JSPS 24253004. T.S. is supported by the grant JSPS23340044. Y.M. acknowledges support from the JSPS grants JSPS23540339 and JSPS19340058. A.G. and B.S. G.acknowledge support from NSF AST-1103471. B.S. G., A.G., and R.W.P. acknowledge support from the NASA grant NNX12AB99G.S. Dong's research was performed under contract with the California Institute of Technology funded by NASA through the Sagan Fellowship Program. K.A., D.B., M.D., K.H., M.H., S.I., C.L., R. ., and Y.T. are supported by the NPRP grant NPRP-09-476-1-78 from the Qatar National Research Fund (a member of the Qatar Foundation). M.D. is a Royal Society University Research Fellow. K.H. is a Royal Society Leverhulme Trust Senior Research Fellow. C.S. received funding from the European Union Seventh Framework Programme (FP7/2007-2013) under grant agreement No. 268421. The research leading to these results has received funding from the European Community's Seventh Framework Programme (/FP7/2007-2013/) under grant agreement No. 229517. |
