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 & 68 others 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, Khalid Al-Subai, 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

Research output: Contribution to journalArticle

1 Citation (Scopus)

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 languageEnglish
Pages (from-to)2710-2717
Number of pages8
JournalMonthly Notices of the Royal Astronomical Society
Volume466
Issue number3
DOIs
Publication statusPublished - 1 Jan 2017

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gas giant planets
cold gas
planet
lenses
stars
planets
gas
observatory
astrophysics
observatories
planetary mass
extrasolar planets
mass ratios
light curve
cold
telescopes
orbitals
experiment
high resolution

Keywords

  • Gravitational lensing: micro
  • Planets and satellites: detection

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Rattenbury, N. J., Bennett, D. P., Sumi, T., Koshimoto, N., Bond, I. A., Udalski, A., ... 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

Faint-source-star planetary microlensing : The discovery of the cold gas-giant planet OGLE-2014-BLG-0676Lb. / 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.; Fukui, A.; Hirao, Y.; Itow, Y.; Li, M. C.A.; Ling, C. H.; Masuda, K.; Matsubara, Y.; Muraki, Y.; Nagakane, M.; Ohnishi, K.; Oyokawa, H.; Saito, To; Sharan, A.; Sullivan, D. J.; Suzuki, D.; Tristram, P. J.; Yonehara, A.; Poleski, R.; Skowron, J.; Mróz, P.; Szymański, M. K.; Soszyński, I.; Pietrukowicz, P.; Kozłowski, S.; Ulaczyk, K.; Wyrzykowski; Friedmann, M.; Kaspi, S.; Al-Subai, Khalid; Browne, P.; Andersen, J. M.; Bozza, V.; Calchi Novati, S.; Damerdji, Y.; Diehl, C.; Dreizler, S.; Elyiv, A.; Giannini, E.; Hardis, S.; Harpsøe, K.; Hinse, T. C.; 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, D. M.; Figuera Jaimes, R.; Horne, K.; Menzies, J.; Schmidt, R.; Steele, I. A.

In: Monthly Notices of the Royal Astronomical Society, Vol. 466, No. 3, 01.01.2017, p. 2710-2717.

Research output: Contribution to journalArticle

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, Al-Subai, 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
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. ; Fukui, A. ; Hirao, Y. ; Itow, Y. ; Li, M. C.A. ; Ling, C. H. ; Masuda, K. ; Matsubara, Y. ; Muraki, Y. ; Nagakane, M. ; Ohnishi, K. ; Oyokawa, H. ; Saito, To ; Sharan, A. ; Sullivan, D. J. ; Suzuki, D. ; Tristram, P. J. ; Yonehara, A. ; Poleski, R. ; Skowron, J. ; Mróz, P. ; Szymański, M. K. ; Soszyński, I. ; Pietrukowicz, P. ; Kozłowski, S. ; Ulaczyk, K. ; Wyrzykowski ; Friedmann, M. ; Kaspi, S. ; Al-Subai, Khalid ; Browne, P. ; Andersen, J. M. ; Bozza, V. ; Calchi Novati, S. ; Damerdji, Y. ; Diehl, C. ; Dreizler, S. ; Elyiv, A. ; Giannini, E. ; Hardis, S. ; Harpsøe, K. ; Hinse, T. C. ; 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, D. M. ; Figuera Jaimes, R. ; Horne, K. ; Menzies, J. ; Schmidt, R. ; Steele, I. A. / Faint-source-star planetary microlensing : The discovery of the cold gas-giant planet OGLE-2014-BLG-0676Lb. In: Monthly Notices of the Royal Astronomical Society. 2017 ; Vol. 466, No. 3. pp. 2710-2717.
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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.",
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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 - Al-Subai, Khalid

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 - 2017/1/1

Y1 - 2017/1/1

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

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U2 - 10.1093/mnras/stw3185

DO - 10.1093/mnras/stw3185

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EP - 2717

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

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