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; Ł. 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. 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, Ł. 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

Korea Astronomy and Space Science Institute

Research output: Contribution to journal › Journal article › Research › peer-review

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
Journal	Monthly Notices of the Royal Astronomical Society
Volume	466
Issue number	3
Pages (from-to)	2710-2717
ISSN	0035-8711
DOIs	https://doi.org/10.1093/mnras/stw3185
Publication status	Published - 1. Apr 2017
Externally published	Yes

Keywords

gravitational lensing: micro
planets and satellites: detection
Astrophysics - Earth and Planetary Astrophysics
Gravitational lensing: micro
Planets and satellites: detection

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10.1093/mnras/stw3185

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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{a8751fee5ad94ba59e94a93a53de1202,

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, Astrophysics - Earth and Planetary Astrophysics, Gravitational lensing: micro, Planets and satellites: detection",

author = "N.\textasciitilde{}J. Rattenbury and D.\textasciitilde{}P. Bennett and T. Sumi and N. Koshimoto and I.\textasciitilde{}A. Bond and A. Udalski and Y. Shvartzvald and D. Maoz and U.\textasciitilde{}G. J{\o}rgensen and M. Dominik and R.\textasciitilde{}A. Street 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 M.\textasciitilde{}C.\textasciitilde{}A. Li and C.\textasciitilde{}H. Ling 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 D.\textasciitilde{}J. Sullivan and D. Suzuki and P.\textasciitilde{}J. Tristram and A. Yonehara and R. Poleski and J. Skowron and P. Mr{\'o}z and M.\textasciitilde{}K. Szyma{\'n}ski and I. Soszy{\'n}ski and P. Pietrukowicz and S. Koz{\l}owski and K. Ulaczyk and {\L}. Wyrzykowski and M. Friedmann and S. Kaspi and K. Alsubai and P. Browne and J.\textasciitilde{}M. Andersen 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 T.\textasciitilde{}C. Hinse 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 D.\textasciitilde{}M. Bramich and \{Figuera Jaimes\}, R. and K. Horne and J. Menzies and R. Schmidt and I.\textasciitilde{}A. Steele",

year = "2017",

month = apr,

day = "1",

doi = "10.1093/mnras/stw3185",

language = "English",

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, Ł, 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, Ł.

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 - 2017/4/1

Y1 - 2017/4/1

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

KW - Astrophysics - Earth and Planetary Astrophysics

KW - Gravitational lensing: micro

KW - Planets and satellites: detection

U2 - 10.1093/mnras/stw3185

DO - 10.1093/mnras/stw3185

M3 - Journal article

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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Keywords

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