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. 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, 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

Research output: Contribution to journal › Article › 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 MOA, OGLE, Wise, RoboNET/LCOGT, MiNDSTEp and μFUN groups. 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 (+1.02/−1.12) M_J planet orbiting a 0.62(+0.20/−0.22) M⊙ host star at a deprojected orbital separation of 4.40 (+2.16/−1.46) AU. The distance to the lens system is 2.22 (+0.96/−0.83) 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
Journal	Monthly Notices of the Royal Astronomical Society
Volume	466
Issue number	3
Early online date	10 Dec 2016
DOIs	https://doi.org/10.1093/mnras/stw3185
Publication status	Published - Apr 2017

Keywords

Gravitational lensing: micro
Planets and satellites: detection

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10.1093/mnras/stw3185

MNRAS-2016-Rattenbury-mnras-stw3185
© 2016, the Author(s). This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at mnras.oxfordjournals.org / https://doi.org/10.1093/mnras/stw3185
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Astronomy at St Andrews 2015-2018: Astronomy at St Andrews 2015-2018
Jardine, M. M. (PI), Cameron, A. C. (CoI), Cyganowski, C. J. (CoI), Horne, K. D. (CoI) & Wood, K. (CoI)
Science & Technology Facilities Council
1/04/15 → 31/03/18
Project: Standard

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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{490625629dea4c9387b4488e614e6e58,

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 MOA, OGLE, Wise, RoboNET/LCOGT, MiNDSTEp and μFUN groups. 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 (+1.02/−1.12) MJ planet orbiting a 0.62(+0.20/−0.22) M⊙ host star at a deprojected orbital separation of 4.40 (+2.16/−1.46) AU. The distance to the lens system is 2.22 (+0.96/−0.83) 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 {\L}. Wyrzykowski and M. Friedmann and S. Kaspi and K. Alsubai and P. Browne and Andersen, {J. M.} and V. Bozza and Novati, {S. Calchi} 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.}",

year = "2017",

month = apr,

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, Novati, SC, 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 - Novati, S. Calchi

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

Y1 - 2017/4

N2 - We report the discovery of a planet — OGLE-2014-BLG-0676Lb— via gravitational microlensing. Observations for the lensing event were made by the MOA, OGLE, Wise, RoboNET/LCOGT, MiNDSTEp and μFUN groups. 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 (+1.02/−1.12) MJ planet orbiting a 0.62(+0.20/−0.22) M⊙ host star at a deprojected orbital separation of 4.40 (+2.16/−1.46) AU. The distance to the lens system is 2.22 (+0.96/−0.83) 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 MOA, OGLE, Wise, RoboNET/LCOGT, MiNDSTEp and μFUN groups. 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 (+1.02/−1.12) MJ planet orbiting a 0.62(+0.20/−0.22) M⊙ host star at a deprojected orbital separation of 4.40 (+2.16/−1.46) AU. The distance to the lens system is 2.22 (+0.96/−0.83) 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

U2 - 10.1093/mnras/stw3185

DO - 10.1093/mnras/stw3185

M3 - 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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Astronomy at St Andrews 2015-2018: Astronomy at St Andrews 2015-2018

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