OGLE-2017-BLG-0406: Spitzer Microlens Parallax Reveals Saturn-mass Planet Orbiting M-dwarf Host in the Inner Galactic Disk

Yuki Hirao; David P. Bennett; Yoon Hyun Ryu; Naoki Koshimoto; Andrzej Udalski; Jennifer C. Yee; Takahiro Sumi; Ian A. Bond; Yossi Shvartzvald; Fumio Abe; Richard K. Barry; Aparna Bhattacharya; Martin Donachie; Akihiko Fukui; Yoshitaka Itow; Iona Kondo; Man Cheung Alex Li; Yutaka Matsubara; Taro Matsuo; Shota Miyazaki; Yasushi Muraki; Masayuki Nagakane; Clément Ranc; Nicholas J. Rattenbury; Haruno Suematsu; Hiroshi Shibai; Daisuke Suzuki; Paul J. Tristram; Atsunori Yonehara; J. Skowron; R. Poleski; P. Mróz; M. K. Szymański; I. Soszyński; S. Kozłowski; P. Pietrukowicz; K. Ulaczyk; K. Rybicki; P. Iwanek; Michael D. Albrow; Sun Ju Chung; Andrew Gould; Cheongho Han; Kyu Ha Hwang; Youn Kil Jung; In Gu Shin; Weicheng Zang; Sang Mok Cha; Dong Jin Kim; Hyoun Woo Kim; Seung Lee Kim; Chung Uk Lee; Dong Joo Lee; Yongseok Lee; Byeong Gon Park; Richard W. Pogge; Charles A. Beichman; Geoffery Bryden; Sebastiano Calchi Novati; Sean Carey; B. Scott Gaudi; Calen B. Henderson; Wei Zhu; Etienne Bachelet; Greg Bolt; Grant Christie; Markus Hundertmark; Tim Natusch; Dan Maoz; Jennie McCormick; Rachel A. Street; Thiam Guan Tan; Yiannis Tsapras; U. G. Jørgensen; M. Dominik; V. Bozza; J. Skottfelt; C. Snodgrass; S. Ciceri; R. Figuera Jaimes; D. F. Evans; N. Peixinho; T. C. Hinse; M. J. Burgdorf; J. Southworth; S. Rahvar; S. Sajadian; M. Rabus; C. Von Essen; Y. I. Fujii; J. Campbell-White; S. Lowry; C. Helling; L. Mancini; L. Haikala; Ryo Kandori

doi:10.3847/1538-3881/ab9ac3

OGLE-2017-BLG-0406: Spitzer Microlens Parallax Reveals Saturn-mass Planet Orbiting M-dwarf Host in the Inner Galactic Disk

Yuki Hirao, David P. Bennett, Yoon Hyun Ryu, Naoki Koshimoto, Andrzej Udalski, Jennifer C. Yee, Takahiro Sumi, Ian A. Bond, Yossi Shvartzvald, Fumio Abe, Richard K. Barry, Aparna Bhattacharya, Martin Donachie, Akihiko Fukui, Yoshitaka Itow, Iona Kondo, Man Cheung Alex Li, Yutaka Matsubara, Taro Matsuo, Shota MiyazakiYasushi Muraki, Masayuki Nagakane, Clément Ranc, Nicholas J. Rattenbury, Haruno Suematsu, Hiroshi Shibai, Daisuke Suzuki, Paul J. Tristram, Atsunori Yonehara, J. Skowron, R. Poleski, P. Mróz, M. K. Szymański, I. Soszyński, S. Kozłowski, P. Pietrukowicz, K. Ulaczyk, K. Rybicki, P. Iwanek, Michael D. Albrow, Sun Ju Chung, Andrew Gould, Cheongho Han, Kyu Ha Hwang, Youn Kil Jung, In Gu Shin, Weicheng Zang, Sang Mok Cha, Dong Jin Kim, Hyoun Woo Kim, Seung Lee Kim, Chung Uk Lee, Dong Joo Lee, Yongseok Lee, Byeong Gon Park, Richard W. Pogge, Charles A. Beichman, Geoffery Bryden, Sebastiano Calchi Novati, Sean Carey, B. Scott Gaudi, Calen B. Henderson, Wei Zhu, Etienne Bachelet, Greg Bolt, Grant Christie, Markus Hundertmark, Tim Natusch, Dan Maoz, Jennie McCormick, Rachel A. Street, Thiam Guan Tan, Yiannis Tsapras, U. G. Jørgensen, M. Dominik, V. Bozza, J. Skottfelt, C. Snodgrass, S. Ciceri, R. Figuera Jaimes, D. F. Evans, N. Peixinho, T. C. Hinse, M. J. Burgdorf, J. Southworth, S. Rahvar, S. Sajadian, M. Rabus, C. Von Essen, Y. I. Fujii, J. Campbell-White, S. Lowry, C. Helling, L. Mancini, L. Haikala, Ryo Kandori

School of Physics and Astronomy

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Abstract

We report the discovery and analysis of the planetary microlensing event OGLE-2017-BLG-0406, which was observed both from the ground and by the Spitzer satellite in a solar orbit. At high magnification, the anomaly in the light curve was densely observed by ground-based-survey and follow-up groups, and it was found to be explained by a planetary lens with a planet/host mass ratio of q = 7.0 × 10-4 from the light-curve modeling. The ground-only and Spitzer-"only"data each provide very strong one-dimensional (1D) constraints on the 2D microlens parallax vector πE. When combined, these yield a precise measurement of πE and of the masses of the host equation presented and planet M planet = 0.41 ± 0.05 M Jup. The system lies at a distance D L = 5.2 ± 0.5 kpc from the Sun toward the Galactic bulge, and the host is more likely to be a disk population star according to the kinematics of the lens. The projected separation of the planet from the host is a? = 3.5 ± 0.3 au (i.e., just over twice the snow line). The Galactic-disk kinematics are established in part from a precise measurement of the source proper motion based on OGLE-IV data. By contrast, the Gaia proper-motion measurement of the source suffers from a catastrophic 10σ error.

Original language	English
Article number	74
Journal	Astronomical Journal
Volume	160
Issue number	2
DOIs	https://doi.org/10.3847/1538-3881/ab9ac3
State	Published - Aug 2020

Funding

Funders	Funder number
National Science Foundation	1516842, 1500811, 321035
National Science Foundation

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10.3847/1538-3881/ab9ac3

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Hirao, Y., Bennett, D. P., Ryu, Y. H., Koshimoto, N., Udalski, A., Yee, J. C., Sumi, T., Bond, I. A., Shvartzvald, Y., Abe, F., Barry, R. K., Bhattacharya, A., Donachie, M., Fukui, A., Itow, Y., Kondo, I., Alex Li, M. C., Matsubara, Y., Matsuo, T., ... Kandori, R. (2020). OGLE-2017-BLG-0406: Spitzer Microlens Parallax Reveals Saturn-mass Planet Orbiting M-dwarf Host in the Inner Galactic Disk. Astronomical Journal, 160(2), Article 74. https://doi.org/10.3847/1538-3881/ab9ac3

@article{a70946752b224b25bad27b2406096292,

title = "OGLE-2017-BLG-0406: Spitzer Microlens Parallax Reveals Saturn-mass Planet Orbiting M-dwarf Host in the Inner Galactic Disk",

abstract = "We report the discovery and analysis of the planetary microlensing event OGLE-2017-BLG-0406, which was observed both from the ground and by the Spitzer satellite in a solar orbit. At high magnification, the anomaly in the light curve was densely observed by ground-based-survey and follow-up groups, and it was found to be explained by a planetary lens with a planet/host mass ratio of q = 7.0 × 10-4 from the light-curve modeling. The ground-only and Spitzer-{"}only{"}data each provide very strong one-dimensional (1D) constraints on the 2D microlens parallax vector πE. When combined, these yield a precise measurement of πE and of the masses of the host equation presented and planet M planet = 0.41 ± 0.05 M Jup. The system lies at a distance D L = 5.2 ± 0.5 kpc from the Sun toward the Galactic bulge, and the host is more likely to be a disk population star according to the kinematics of the lens. The projected separation of the planet from the host is a? = 3.5 ± 0.3 au (i.e., just over twice the snow line). The Galactic-disk kinematics are established in part from a precise measurement of the source proper motion based on OGLE-IV data. By contrast, the Gaia proper-motion measurement of the source suffers from a catastrophic 10σ error.",

author = "Yuki Hirao and Bennett, {David P.} and Ryu, {Yoon Hyun} and Naoki Koshimoto and Andrzej Udalski and Yee, {Jennifer C.} and Takahiro Sumi and Bond, {Ian A.} and Yossi Shvartzvald and Fumio Abe and Barry, {Richard K.} and Aparna Bhattacharya and Martin Donachie and Akihiko Fukui and Yoshitaka Itow and Iona Kondo and {Alex Li}, {Man Cheung} and Yutaka Matsubara and Taro Matsuo and Shota Miyazaki and Yasushi Muraki and Masayuki Nagakane and Cl{\'e}ment Ranc and Rattenbury, {Nicholas J.} and Haruno Suematsu and Hiroshi Shibai and Daisuke Suzuki and Tristram, {Paul J.} and Atsunori Yonehara and J. Skowron and R. Poleski and P. Mr{\'o}z and Szyma{\'n}ski, {M. K.} and I. Soszy{\'n}ski and S. Koz{\l}owski and P. Pietrukowicz and K. Ulaczyk and K. Rybicki and P. Iwanek and {D. Albrow}, Michael and Chung, {Sun Ju} and Andrew Gould and Cheongho Han and Hwang, {Kyu Ha} and Jung, {Youn Kil} and Shin, {In Gu} and Weicheng Zang and Cha, {Sang Mok} and Kim, {Dong Jin} and Kim, {Hyoun Woo} and Kim, {Seung Lee} and Lee, {Chung Uk} and Lee, {Dong Joo} and Yongseok Lee and Park, {Byeong Gon} and Pogge, {Richard W.} and Beichman, {Charles A.} and Geoffery Bryden and Novati, {Sebastiano Calchi} and Sean Carey and Gaudi, {B. Scott} and Henderson, {Calen B.} and Wei Zhu and Etienne Bachelet and Greg Bolt and Grant Christie and Markus Hundertmark and Tim Natusch and Dan Maoz and Jennie McCormick and {A. Street}, Rachel and Tan, {Thiam Guan} and Yiannis Tsapras and J{\o}rgensen, {U. G.} and M. Dominik and V. Bozza and J. Skottfelt and C. Snodgrass and S. Ciceri and Jaimes, {R. Figuera} and Evans, {D. F.} and N. Peixinho and Hinse, {T. C.} and Burgdorf, {M. J.} and J. Southworth and S. Rahvar and S. Sajadian and M. Rabus and Essen, {C. Von} and Fujii, {Y. I.} and J. Campbell-White and S. Lowry and C. Helling and L. Mancini and L. Haikala and Ryo Kandori",

year = "2020",

month = aug,

doi = "10.3847/1538-3881/ab9ac3",

language = "אנגלית",

volume = "160",

journal = "Astronomical Journal",

issn = "0004-6256",

publisher = "IOP Publishing Ltd.",

number = "2",

}

Hirao, Y, Bennett, DP, Ryu, YH, Koshimoto, N, Udalski, A, Yee, JC, Sumi, T, Bond, IA, Shvartzvald, Y, Abe, F, Barry, RK, Bhattacharya, A, Donachie, M, Fukui, A, Itow, Y, Kondo, I, Alex Li, MC, Matsubara, Y, Matsuo, T, Miyazaki, S, Muraki, Y, Nagakane, M, Ranc, C, Rattenbury, NJ, Suematsu, H, Shibai, H, Suzuki, D, Tristram, PJ, Yonehara, A, Skowron, J, Poleski, R, Mróz, P, Szymański, MK, Soszyński, I, Kozłowski, S, Pietrukowicz, P, Ulaczyk, K, Rybicki, K, Iwanek, P, D. Albrow, M, Chung, SJ, Gould, A, Han, C, Hwang, KH, Jung, YK, Shin, IG, Zang, W, Cha, SM, Kim, DJ, Kim, HW, Kim, SL, Lee, CU, Lee, DJ, Lee, Y, Park, BG, Pogge, RW, Beichman, CA, Bryden, G, Novati, SC, Carey, S, Gaudi, BS, Henderson, CB, Zhu, W, Bachelet, E, Bolt, G, Christie, G, Hundertmark, M, Natusch, T, Maoz, D, McCormick, J, A. Street, R, Tan, TG, Tsapras, Y, Jørgensen, UG, Dominik, M, Bozza, V, Skottfelt, J, Snodgrass, C, Ciceri, S, Jaimes, RF, Evans, DF, Peixinho, N, Hinse, TC, Burgdorf, MJ, Southworth, J, Rahvar, S, Sajadian, S, Rabus, M, Essen, CV, Fujii, YI, Campbell-White, J, Lowry, S, Helling, C, Mancini, L, Haikala, L & Kandori, R 2020, 'OGLE-2017-BLG-0406: Spitzer Microlens Parallax Reveals Saturn-mass Planet Orbiting M-dwarf Host in the Inner Galactic Disk', Astronomical Journal, vol. 160, no. 2, 74. https://doi.org/10.3847/1538-3881/ab9ac3

TY - JOUR

T1 - OGLE-2017-BLG-0406

T2 - Spitzer Microlens Parallax Reveals Saturn-mass Planet Orbiting M-dwarf Host in the Inner Galactic Disk

AU - Hirao, Yuki

AU - Bennett, David P.

AU - Ryu, Yoon Hyun

AU - Koshimoto, Naoki

AU - Udalski, Andrzej

AU - Yee, Jennifer C.

AU - Sumi, Takahiro

AU - Bond, Ian A.

AU - Shvartzvald, Yossi

AU - Abe, Fumio

AU - Barry, Richard K.

AU - Bhattacharya, Aparna

AU - Donachie, Martin

AU - Fukui, Akihiko

AU - Itow, Yoshitaka

AU - Kondo, Iona

AU - Alex Li, Man Cheung

AU - Matsubara, Yutaka

AU - Matsuo, Taro

AU - Miyazaki, Shota

AU - Muraki, Yasushi

AU - Nagakane, Masayuki

AU - Ranc, Clément

AU - Rattenbury, Nicholas J.

AU - Suematsu, Haruno

AU - Shibai, Hiroshi

AU - Suzuki, Daisuke

AU - Tristram, Paul J.

AU - Yonehara, Atsunori

AU - Skowron, J.

AU - Poleski, R.

AU - Mróz, P.

AU - Szymański, M. K.

AU - Soszyński, I.

AU - Kozłowski, S.

AU - Pietrukowicz, P.

AU - Ulaczyk, K.

AU - Rybicki, K.

AU - Iwanek, P.

AU - D. Albrow, Michael

AU - Chung, Sun Ju

AU - Gould, Andrew

AU - Han, Cheongho

AU - Hwang, Kyu Ha

AU - Jung, Youn Kil

AU - Shin, In Gu

AU - Zang, Weicheng

AU - Cha, Sang Mok

AU - Kim, Dong Jin

AU - Kim, Hyoun Woo

AU - Kim, Seung Lee

AU - Lee, Chung Uk

AU - Lee, Dong Joo

AU - Lee, Yongseok

AU - Park, Byeong Gon

AU - Pogge, Richard W.

AU - Beichman, Charles A.

AU - Bryden, Geoffery

AU - Novati, Sebastiano Calchi

AU - Carey, Sean

AU - Gaudi, B. Scott

AU - Henderson, Calen B.

AU - Zhu, Wei

AU - Bachelet, Etienne

AU - Bolt, Greg

AU - Christie, Grant

AU - Hundertmark, Markus

AU - Natusch, Tim

AU - Maoz, Dan

AU - McCormick, Jennie

AU - A. Street, Rachel

AU - Tan, Thiam Guan

AU - Tsapras, Yiannis

AU - Jørgensen, U. G.

AU - Dominik, M.

AU - Bozza, V.

AU - Skottfelt, J.

AU - Snodgrass, C.

AU - Ciceri, S.

AU - Jaimes, R. Figuera

AU - Evans, D. F.

AU - Peixinho, N.

AU - Hinse, T. C.

AU - Burgdorf, M. J.

AU - Southworth, J.

AU - Rahvar, S.

AU - Sajadian, S.

AU - Rabus, M.

AU - Essen, C. Von

AU - Fujii, Y. I.

AU - Campbell-White, J.

AU - Lowry, S.

AU - Helling, C.

AU - Mancini, L.

AU - Haikala, L.

AU - Kandori, Ryo

PY - 2020/8

Y1 - 2020/8

N2 - We report the discovery and analysis of the planetary microlensing event OGLE-2017-BLG-0406, which was observed both from the ground and by the Spitzer satellite in a solar orbit. At high magnification, the anomaly in the light curve was densely observed by ground-based-survey and follow-up groups, and it was found to be explained by a planetary lens with a planet/host mass ratio of q = 7.0 × 10-4 from the light-curve modeling. The ground-only and Spitzer-"only"data each provide very strong one-dimensional (1D) constraints on the 2D microlens parallax vector πE. When combined, these yield a precise measurement of πE and of the masses of the host equation presented and planet M planet = 0.41 ± 0.05 M Jup. The system lies at a distance D L = 5.2 ± 0.5 kpc from the Sun toward the Galactic bulge, and the host is more likely to be a disk population star according to the kinematics of the lens. The projected separation of the planet from the host is a? = 3.5 ± 0.3 au (i.e., just over twice the snow line). The Galactic-disk kinematics are established in part from a precise measurement of the source proper motion based on OGLE-IV data. By contrast, the Gaia proper-motion measurement of the source suffers from a catastrophic 10σ error.

AB - We report the discovery and analysis of the planetary microlensing event OGLE-2017-BLG-0406, which was observed both from the ground and by the Spitzer satellite in a solar orbit. At high magnification, the anomaly in the light curve was densely observed by ground-based-survey and follow-up groups, and it was found to be explained by a planetary lens with a planet/host mass ratio of q = 7.0 × 10-4 from the light-curve modeling. The ground-only and Spitzer-"only"data each provide very strong one-dimensional (1D) constraints on the 2D microlens parallax vector πE. When combined, these yield a precise measurement of πE and of the masses of the host equation presented and planet M planet = 0.41 ± 0.05 M Jup. The system lies at a distance D L = 5.2 ± 0.5 kpc from the Sun toward the Galactic bulge, and the host is more likely to be a disk population star according to the kinematics of the lens. The projected separation of the planet from the host is a? = 3.5 ± 0.3 au (i.e., just over twice the snow line). The Galactic-disk kinematics are established in part from a precise measurement of the source proper motion based on OGLE-IV data. By contrast, the Gaia proper-motion measurement of the source suffers from a catastrophic 10σ error.

UR - http://www.scopus.com/inward/record.url?scp=85089849915&partnerID=8YFLogxK

U2 - 10.3847/1538-3881/ab9ac3

DO - 10.3847/1538-3881/ab9ac3

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AN - SCOPUS:85089849915

SN - 0004-6256

VL - 160

JO - Astronomical Journal

JF - Astronomical Journal

IS - 2

M1 - 74

ER -

OGLE-2017-BLG-0406: Spitzer Microlens Parallax Reveals Saturn-mass Planet Orbiting M-dwarf Host in the Inner Galactic Disk

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