Faint-source-star planetary microlensing: The discovery of the cold gas-giant planet OGLE-2014-BLG-0676Lb

N. J. Rattenbury; D. P. Bennett; T. Sumi; N. Koshimoto; I. A. Bond; A. Udalski; Y. Shvartzvald; D. Maoz; U. G. Jørgensen; M. Dominik; R. A. Street; Y. Tsapras; F. Abe; Y. Asakura; R. Barry; A. Bhattacharya; M. Donachie; P. Evans; M. Freeman; A. Fukui; Y. Hirao; Y. Itow; M. C.A. Li; C. H. Ling; K. Masuda; Y. Matsubara; Y. Muraki; M. Nagakane; K. Ohnishi; H. Oyokawa; To Saito; A. Sharan; D. J. Sullivan; D. Suzuki; P. J. Tristram; A. Yonehara; R. Poleski; J. Skowron; P. Mróz; M. K. Szymański; I. Soszyński; P. Pietrukowicz; S. Kozłowski; K. Ulaczyk; Wyrzykowski; M. Friedmann; S. Kaspi; K. Alsubai; P. Browne; J. M. Andersen; V. Bozza; S. Calchi Novati; Y. Damerdji; C. Diehl; S. Dreizler; A. Elyiv; E. Giannini; S. Hardis; K. Harpsøe; T. C. Hinse; C. Liebig; M. Hundertmark; D. Juncher; N. Kains; E. Kerins; H. Korhonen; L. Mancini; R. Martin; M. Mathiasen; M. Rabus; S. Rahvar; G. Scarpetta; J. Skottfelt; C. Snodgrass; J. Surdej; J. Taylor; J. Tregloan-Reed; C. Vilela; J. Wambsganss; A. Williams; G. D'Ago; E. Bachelet; D. M. Bramich; R. Figuera Jaimes; K. Horne; J. Menzies; R. Schmidt; I. A. Steele

doi:10.1093/mnras/stw3185

Faint-source-star planetary microlensing: The discovery of the cold gas-giant planet OGLE-2014-BLG-0676Lb

N. J. Rattenbury^*, D. P. Bennett, T. Sumi, N. Koshimoto, I. A. Bond, A. Udalski, Y. Shvartzvald, D. Maoz, U. G. Jørgensen, M. Dominik, R. A. Street, Y. Tsapras, F. Abe, Y. Asakura, R. Barry, A. Bhattacharya, M. Donachie, P. Evans, M. Freeman, A. FukuiY. Hirao, Y. Itow, M. C.A. Li, C. H. Ling, K. Masuda, Y. Matsubara, Y. Muraki, M. Nagakane, K. Ohnishi, H. Oyokawa, To Saito, A. Sharan, D. J. Sullivan, D. Suzuki, P. J. Tristram, A. Yonehara, R. Poleski, J. Skowron, P. Mróz, M. K. Szymański, I. Soszyński, P. Pietrukowicz, S. Kozłowski, K. Ulaczyk, Wyrzykowski, M. Friedmann, S. Kaspi, K. Alsubai, P. Browne, J. M. Andersen, V. Bozza, S. Calchi Novati, Y. Damerdji, C. Diehl, S. Dreizler, A. Elyiv, E. Giannini, S. Hardis, K. Harpsøe, T. C. Hinse, C. Liebig, M. Hundertmark, D. Juncher, N. Kains, E. Kerins, H. Korhonen, L. Mancini, R. Martin, M. Mathiasen, M. Rabus, S. Rahvar, G. Scarpetta, J. Skottfelt, C. Snodgrass, J. Surdej, J. Taylor, J. Tregloan-Reed, C. Vilela, J. Wambsganss, A. Williams, G. D'Ago, E. Bachelet, D. M. Bramich, R. Figuera Jaimes, K. Horne, J. Menzies, R. Schmidt, I. A. Steele

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School of Physics and Astronomy

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Abstract

We report the discovery of a planet - OGLE-2014-BLG-0676Lb- via gravitational microlensing. Observations for the lensing event were made by the following groups: Microlensing Observations in Astrophysics; Optical Gravitational Lensing Experiment; Wise Observatory; RoboNET/Las Cumbres Observatory Global Telescope; Microlensing Network for the Detection of Small Terrestrial Exoplanets; and μ-FUN. All analyses of the light-curve data favour a lens system comprising a planetary mass orbiting a host star. The most-favoured binary lens model has a mass ratio between the two lens masses of (4.78 ± 0.13) × 10^-3. Subject to some important assumptions, a Bayesian probability density analysis suggests the lens system comprises a 3.09_-1.12^+1.02 MJ planet orbiting a 0.62-_0.22^+0.20 M_⊙ host star at a deprojected orbital separation of 4.40_-1.46^+2.16 au. The distance to the lens system is 2.22_-0.83^+0.96 kpc. Planet OGLE- 2014-BLG-0676Lb provides additional data to the growing number of cool planets discovered using gravitational microlensing against which planetary formation theories may be tested. Most of the light in the baseline of this event is expected to come from the lens and thus high-resolution imaging observations could confirm our planetary model interpretation.

Original language	English
Pages (from-to)	2710-2717
Number of pages	8
Journal	Monthly Notices of the Royal Astronomical Society
Volume	466
Issue number	3
DOIs	https://doi.org/10.1093/mnras/stw3185
State	Published - 21 Apr 2017

Funding

Funders	Funder number
Las Cumbres Observatory
Qatar National Research Fund
Qatar Foundation
Universität Heidelberg
ARTEMIS
Natur og Univers, Det Frie Forskningsråd
California Institute of Technology
Communaut é française de Belgique-Actions de recherche concertées-Académie Wallonie-Europe
Regione Campania
Danish Natural Science Foundation
NeSI's
University of St Andrews
LCOGT
Korea Research Council of Fundamental Science and Technology
Not added	ST/P000649/1, ST/P002218/1, ST/P006892/1, ST/L004569/1, ST/M003035/1, ST/M001296/1
Royal Society of New Zealand Marsden	MAU1104
Narodowe Centrum Nauki	MAESTRO 2014/14/A/ST9/00121
Japan Society for the Promotion of Science	JSPS24253004, JSPS25103508, JSPS23340064, 16H05732, JSPS26247023, 15J01676, 16H06287, JSPS23103002
NPRP	X-019-1-006, 09-467-1-078
Korea Astronomy and Space Science Institute	2014-1-400-06

Keywords

Gravitational lensing: micro
Planets and satellites: detection

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10.1093/mnras/stw3185

Cite this

Rattenbury, N. J., Bennett, D. P., Sumi, T., Koshimoto, N., Bond, I. A., Udalski, A., Shvartzvald, Y., Maoz, D., Jørgensen, U. G., Dominik, M., Street, R. A., Tsapras, Y., Abe, F., Asakura, Y., Barry, R., Bhattacharya, A., Donachie, M., Evans, P., Freeman, M., ... Steele, I. A. (2017). Faint-source-star planetary microlensing: The discovery of the cold gas-giant planet OGLE-2014-BLG-0676Lb. Monthly Notices of the Royal Astronomical Society, 466(3), 2710-2717. https://doi.org/10.1093/mnras/stw3185

@article{878e547daac444cf8d7e3f7d9d55f468,

title = "Faint-source-star planetary microlensing: The discovery of the cold gas-giant planet OGLE-2014-BLG-0676Lb",

abstract = "We report the discovery of a planet - OGLE-2014-BLG-0676Lb- via gravitational microlensing. Observations for the lensing event were made by the following groups: Microlensing Observations in Astrophysics; Optical Gravitational Lensing Experiment; Wise Observatory; RoboNET/Las Cumbres Observatory Global Telescope; Microlensing Network for the Detection of Small Terrestrial Exoplanets; and μ-FUN. All analyses of the light-curve data favour a lens system comprising a planetary mass orbiting a host star. The most-favoured binary lens model has a mass ratio between the two lens masses of (4.78 ± 0.13) × 10-3. Subject to some important assumptions, a Bayesian probability density analysis suggests the lens system comprises a 3.09-1.12+1.02 MJ planet orbiting a 0.62-0.22+0.20 M⊙ host star at a deprojected orbital separation of 4.40-1.46+2.16 au. The distance to the lens system is 2.22-0.83+0.96 kpc. Planet OGLE- 2014-BLG-0676Lb provides additional data to the growing number of cool planets discovered using gravitational microlensing against which planetary formation theories may be tested. Most of the light in the baseline of this event is expected to come from the lens and thus high-resolution imaging observations could confirm our planetary model interpretation.",

keywords = "Gravitational lensing: micro, Planets and satellites: detection",

author = "Rattenbury, {N. J.} and Bennett, {D. P.} and T. Sumi and N. Koshimoto and Bond, {I. A.} and A. Udalski and Y. Shvartzvald and D. Maoz and J{\o}rgensen, {U. G.} and M. Dominik and Street, {R. A.} and Y. Tsapras and F. Abe and Y. Asakura and R. Barry and A. Bhattacharya and M. Donachie and P. Evans and M. Freeman and A. Fukui and Y. Hirao and Y. Itow and Li, {M. C.A.} and Ling, {C. H.} and K. Masuda and Y. Matsubara and Y. Muraki and M. Nagakane and K. Ohnishi and H. Oyokawa and To Saito and A. Sharan and Sullivan, {D. J.} and D. Suzuki and Tristram, {P. J.} and A. Yonehara and R. Poleski and J. Skowron and P. Mr{\'o}z and Szyma{\'n}ski, {M. K.} and I. Soszy{\'n}ski and P. Pietrukowicz and S. Koz{\l}owski and K. Ulaczyk and Wyrzykowski and M. Friedmann and S. Kaspi and K. Alsubai and P. Browne and Andersen, {J. M.} and V. Bozza and {Calchi Novati}, S. and Y. Damerdji and C. Diehl and S. Dreizler and A. Elyiv and E. Giannini and S. Hardis and K. Harps{\o}e and Hinse, {T. C.} and C. Liebig and M. Hundertmark and D. Juncher and N. Kains and E. Kerins and H. Korhonen and L. Mancini and R. Martin and M. Mathiasen and M. Rabus and S. Rahvar and G. Scarpetta and J. Skottfelt and C. Snodgrass and J. Surdej and J. Taylor and J. Tregloan-Reed and C. Vilela and J. Wambsganss and A. Williams and G. D'Ago and E. Bachelet and Bramich, {D. M.} and {Figuera Jaimes}, R. and K. Horne and J. Menzies and R. Schmidt and Steele, {I. A.}",

note = "Publisher Copyright: {\textcopyright} 2016 The Authors.",

year = "2017",

month = apr,

day = "21",

doi = "10.1093/mnras/stw3185",

language = "אנגלית",

volume = "466",

pages = "2710--2717",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Oxford University Press",

number = "3",

}

Rattenbury, NJ, Bennett, DP, Sumi, T, Koshimoto, N, Bond, IA, Udalski, A, Shvartzvald, Y, Maoz, D, Jørgensen, UG, Dominik, M, Street, RA, Tsapras, Y, Abe, F, Asakura, Y, Barry, R, Bhattacharya, A, Donachie, M, Evans, P, Freeman, M, Fukui, A, Hirao, Y, Itow, Y, Li, MCA, Ling, CH, Masuda, K, Matsubara, Y, Muraki, Y, Nagakane, M, Ohnishi, K, Oyokawa, H, Saito, T, Sharan, A, Sullivan, DJ, Suzuki, D, Tristram, PJ, Yonehara, A, Poleski, R, Skowron, J, Mróz, P, Szymański, MK, Soszyński, I, Pietrukowicz, P, Kozłowski, S, Ulaczyk, K, Wyrzykowski, Friedmann, M, Kaspi, S, Alsubai, K, Browne, P, Andersen, JM, Bozza, V, Calchi Novati, S, Damerdji, Y, Diehl, C, Dreizler, S, Elyiv, A, Giannini, E, Hardis, S, Harpsøe, K, Hinse, TC, Liebig, C, Hundertmark, M, Juncher, D, Kains, N, Kerins, E, Korhonen, H, Mancini, L, Martin, R, Mathiasen, M, Rabus, M, Rahvar, S, Scarpetta, G, Skottfelt, J, Snodgrass, C, Surdej, J, Taylor, J, Tregloan-Reed, J, Vilela, C, Wambsganss, J, Williams, A, D'Ago, G, Bachelet, E, Bramich, DM, Figuera Jaimes, R, Horne, K, Menzies, J, Schmidt, R & Steele, IA 2017, 'Faint-source-star planetary microlensing: The discovery of the cold gas-giant planet OGLE-2014-BLG-0676Lb', Monthly Notices of the Royal Astronomical Society, vol. 466, no. 3, pp. 2710-2717. https://doi.org/10.1093/mnras/stw3185

TY - JOUR

T1 - Faint-source-star planetary microlensing

T2 - The discovery of the cold gas-giant planet OGLE-2014-BLG-0676Lb

AU - Rattenbury, N. J.

AU - Bennett, D. P.

AU - Sumi, T.

AU - Koshimoto, N.

AU - Bond, I. A.

AU - Udalski, A.

AU - Shvartzvald, Y.

AU - Maoz, D.

AU - Jørgensen, U. G.

AU - Dominik, M.

AU - Street, R. A.

AU - Tsapras, Y.

AU - Abe, F.

AU - Asakura, Y.

AU - Barry, R.

AU - Bhattacharya, A.

AU - Donachie, M.

AU - Evans, P.

AU - Freeman, M.

AU - Fukui, A.

AU - Hirao, Y.

AU - Itow, Y.

AU - Li, M. C.A.

AU - Ling, C. H.

AU - Masuda, K.

AU - Matsubara, Y.

AU - Muraki, Y.

AU - Nagakane, M.

AU - Ohnishi, K.

AU - Oyokawa, H.

AU - Saito, To

AU - Sharan, A.

AU - Sullivan, D. J.

AU - Suzuki, D.

AU - Tristram, P. J.

AU - Yonehara, A.

AU - Poleski, R.

AU - Skowron, J.

AU - Mróz, P.

AU - Szymański, M. K.

AU - Soszyński, I.

AU - Pietrukowicz, P.

AU - Kozłowski, S.

AU - Ulaczyk, K.

AU - Wyrzykowski,

AU - Friedmann, M.

AU - Kaspi, S.

AU - Alsubai, K.

AU - Browne, P.

AU - Andersen, J. M.

AU - Bozza, V.

AU - Calchi Novati, S.

AU - Damerdji, Y.

AU - Diehl, C.

AU - Dreizler, S.

AU - Elyiv, A.

AU - Giannini, E.

AU - Hardis, S.

AU - Harpsøe, K.

AU - Hinse, T. C.

AU - Liebig, C.

AU - Hundertmark, M.

AU - Juncher, D.

AU - Kains, N.

AU - Kerins, E.

AU - Korhonen, H.

AU - Mancini, L.

AU - Martin, R.

AU - Mathiasen, M.

AU - Rabus, M.

AU - Rahvar, S.

AU - Scarpetta, G.

AU - Skottfelt, J.

AU - Snodgrass, C.

AU - Surdej, J.

AU - Taylor, J.

AU - Tregloan-Reed, J.

AU - Vilela, C.

AU - Wambsganss, J.

AU - Williams, A.

AU - D'Ago, G.

AU - Bachelet, E.

AU - Bramich, D. M.

AU - Figuera Jaimes, R.

AU - Horne, K.

AU - Menzies, J.

AU - Schmidt, R.

AU - Steele, I. A.

PY - 2017/4/21

Y1 - 2017/4/21

N2 - We report the discovery of a planet - OGLE-2014-BLG-0676Lb- via gravitational microlensing. Observations for the lensing event were made by the following groups: Microlensing Observations in Astrophysics; Optical Gravitational Lensing Experiment; Wise Observatory; RoboNET/Las Cumbres Observatory Global Telescope; Microlensing Network for the Detection of Small Terrestrial Exoplanets; and μ-FUN. All analyses of the light-curve data favour a lens system comprising a planetary mass orbiting a host star. The most-favoured binary lens model has a mass ratio between the two lens masses of (4.78 ± 0.13) × 10-3. Subject to some important assumptions, a Bayesian probability density analysis suggests the lens system comprises a 3.09-1.12+1.02 MJ planet orbiting a 0.62-0.22+0.20 M⊙ host star at a deprojected orbital separation of 4.40-1.46+2.16 au. The distance to the lens system is 2.22-0.83+0.96 kpc. Planet OGLE- 2014-BLG-0676Lb provides additional data to the growing number of cool planets discovered using gravitational microlensing against which planetary formation theories may be tested. Most of the light in the baseline of this event is expected to come from the lens and thus high-resolution imaging observations could confirm our planetary model interpretation.

AB - We report the discovery of a planet - OGLE-2014-BLG-0676Lb- via gravitational microlensing. Observations for the lensing event were made by the following groups: Microlensing Observations in Astrophysics; Optical Gravitational Lensing Experiment; Wise Observatory; RoboNET/Las Cumbres Observatory Global Telescope; Microlensing Network for the Detection of Small Terrestrial Exoplanets; and μ-FUN. All analyses of the light-curve data favour a lens system comprising a planetary mass orbiting a host star. The most-favoured binary lens model has a mass ratio between the two lens masses of (4.78 ± 0.13) × 10-3. Subject to some important assumptions, a Bayesian probability density analysis suggests the lens system comprises a 3.09-1.12+1.02 MJ planet orbiting a 0.62-0.22+0.20 M⊙ host star at a deprojected orbital separation of 4.40-1.46+2.16 au. The distance to the lens system is 2.22-0.83+0.96 kpc. Planet OGLE- 2014-BLG-0676Lb provides additional data to the growing number of cool planets discovered using gravitational microlensing against which planetary formation theories may be tested. Most of the light in the baseline of this event is expected to come from the lens and thus high-resolution imaging observations could confirm our planetary model interpretation.

KW - Gravitational lensing: micro

KW - Planets and satellites: detection

UR - http://www.scopus.com/inward/record.url?scp=85018245159&partnerID=8YFLogxK

U2 - 10.1093/mnras/stw3185

DO - 10.1093/mnras/stw3185

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

AN - SCOPUS:85018245159

SN - 0035-8711

VL - 466

SP - 2710

EP - 2717

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 3

ER -

Faint-source-star planetary microlensing: The discovery of the cold gas-giant planet OGLE-2014-BLG-0676Lb

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