OGLE-2013-BLG-0911Lb: A Secondary on the Brown-dwarf Planet Boundary around an M Dwarf

Shota Miyazaki; Takahiro Sumi; David P. Bennett; David P. Bennett; Andrzej Udalski; Yossi Shvartzvald; Rachel Street; Valerio Bozza; Valerio Bozza; Jennifer C. Yee; Ian A. Bond; Nicholas Rattenbury; Naoki Koshimoto; Daisuke Suzuki; Akihiko Fukui; Akihiko Fukui; F. Abe; A. Bhattacharya; A. Bhattacharya; R. Barry; M. Donachie; H. Fujii; Y. Hirao; Y. Itow; Y. Kamei; I. Kondo; M. C.A. Li; C. H. Ling; Y. Matsubara; T. Matsuo; Y. Muraki; M. Nagakane; K. Ohnishi; C. Ranc; T. Saito; A. Sharan; H. Shibai; H. Suematsu; D. J. Sullivan; P. J. Tristram; T. Yamakawa; A. Yonehara; J. Skowron; R. Poleski; P. Mróz; P. Mróz; M. K. Szymaski; I. Soszyski; P. Pietrukowicz; S. Kozowski; K. Ulaczyk; Wyrzykowski; Matan Friedmann; Shai Kaspi; Dan Maoz; M. Albrow; G. Christie; D. L. Depoy; A. Gal-Yam; A. Gould; A. Gould; A. Gould; C. U. Lee; C. Fr; I. Manulis; J. McCormick; T. Natusch; T. Natusch; H. Ngan; R. W. Pogge; R. W. Pogge; I. Porritt; Y. Tsapras; E. Bachelet; E. Bachelet; M. P.G. Hundertmark; M. Dominik; D. M. Bramich; D. M. Bramich; D. M. Bramich; A. Cassan; R. Figuera Jaimes; R. Figuera Jaimes; K. Horne; R. Schmidt; C. Snodgrass; J. Wambsganss; I. A. Steele; J. Menzies; S. Mao; U. G. Jørgensen; M. J. Burgdorf; S. Ciceri; S. Calchi Novati; G. D'Ago; G. D'Ago; G. D'Ago; D. F. Evans; T. C. Hinse; N. Kains; E. Kerins; H. Korhonen; L. Mancini; A. Popovas; M. Rabus; S. Rahvar; G. Scarpetta; G. Scarpetta; J. Skottfelt; J. Skottfelt; J. Southworth; G. D'Ago; N. Peixinho; N. Peixinho; P. Verma

doi:10.3847/1538-3881/ab64de

OGLE-2013-BLG-0911Lb: A Secondary on the Brown-dwarf Planet Boundary around an M Dwarf

Shota Miyazaki, Takahiro Sumi, David P. Bennett, David P. Bennett, Andrzej Udalski, Yossi Shvartzvald, Rachel Street, Valerio Bozza, Valerio Bozza, Jennifer C. Yee, Ian A. Bond, Nicholas Rattenbury, Naoki Koshimoto, Daisuke Suzuki, Akihiko Fukui, Akihiko Fukui, F. Abe, A. Bhattacharya, A. Bhattacharya, R. BarryM. Donachie, H. Fujii, Y. Hirao, Y. Itow, Y. Kamei, I. Kondo, M. C.A. Li, C. H. Ling, Y. Matsubara, T. Matsuo, Y. Muraki, M. Nagakane, K. Ohnishi, C. Ranc, T. Saito, A. Sharan, H. Shibai, H. Suematsu, D. J. Sullivan, P. J. Tristram, T. Yamakawa, A. Yonehara, J. Skowron, R. Poleski, P. Mróz, P. Mróz, M. K. Szymaski, I. Soszyski, P. Pietrukowicz, S. Kozowski, K. Ulaczyk, Wyrzykowski, Matan Friedmann, Shai Kaspi, Dan Maoz, M. Albrow, G. Christie, D. L. Depoy, A. Gal-Yam, A. Gould, A. Gould, A. Gould, C. U. Lee, C. Fr, I. Manulis, J. McCormick, T. Natusch, T. Natusch, H. Ngan, R. W. Pogge, R. W. Pogge, I. Porritt, Y. Tsapras, E. Bachelet, E. Bachelet, M. P.G. Hundertmark, M. Dominik, D. M. Bramich, D. M. Bramich, D. M. Bramich, A. Cassan, R. Figuera Jaimes, R. Figuera Jaimes, K. Horne, R. Schmidt, C. Snodgrass, J. Wambsganss, I. A. Steele, J. Menzies, S. Mao, U. G. Jørgensen, M. J. Burgdorf, S. Ciceri, S. Calchi Novati, G. D'Ago, G. D'Ago, G. D'Ago, D. F. Evans, T. C. Hinse, N. Kains, E. Kerins, H. Korhonen, L. Mancini, A. Popovas, M. Rabus, S. Rahvar, G. Scarpetta, G. Scarpetta, J. Skottfelt, J. Skottfelt, J. Southworth, G. D'Ago, N. Peixinho, N. Peixinho, P. Verma

School of Physics and Astronomy

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Abstract

We present the analysis of the binary-lens microlensing event OGLE-2013-BLG-0911. The best-fit solutions indicate the binary mass ratio of q ? 0.03, which differs from that reported in Shvartzvald et al. The event suffers from the well-known close/wide degeneracy, resulting in two groups of solutions for the projected separation normalized by the Einstein radius of s ? 0.15 or s ? 7. The finite source and the parallax observations allow us to measure the lens physical parameters. The lens system is an M dwarf orbited by a massive Jupiter companion at very close separation. Although the mass ratio is slightly above the planet-brown dwarf (BD) mass-ratio boundary of q = 0.03, which is generally used, the median physical mass of the companion is slightly below the planet-BD mass boundary of 13MJup. It is likely that the formation mechanisms for BDs and planets are different and the objects near the boundaries could have been formed by either mechanism. It is important to probe the distribution of such companions with masses of ?13MJup in order to statistically constrain the formation theories for both BDs and massive planets. In particular, the microlensing method is able to probe the distribution around low-mass M dwarfs and even BDs, which is challenging for other exoplanet detection methods.

Original language	English
Article number	76
Journal	Astronomical Journal
Volume	159
Issue number	2
DOIs	https://doi.org/10.3847/1538-3881/ab64de
State	Published - 1 Feb 2020

Funding

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

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10.3847/1538-3881/ab64de

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Miyazaki, S., Sumi, T., Bennett, D. P., Bennett, D. P., Udalski, A., Shvartzvald, Y., Street, R., Bozza, V., Bozza, V., Yee, J. C., Bond, I. A., Rattenbury, N., Koshimoto, N., Suzuki, D., Fukui, A., Fukui, A., Abe, F., Bhattacharya, A., Bhattacharya, A., ... Verma, P. (2020). OGLE-2013-BLG-0911Lb: A Secondary on the Brown-dwarf Planet Boundary around an M Dwarf. Astronomical Journal, 159(2), Article 76. https://doi.org/10.3847/1538-3881/ab64de

@article{d935863c684043e09e0f46434c62efc1,

title = "OGLE-2013-BLG-0911Lb: A Secondary on the Brown-dwarf Planet Boundary around an M Dwarf",

abstract = "We present the analysis of the binary-lens microlensing event OGLE-2013-BLG-0911. The best-fit solutions indicate the binary mass ratio of q ? 0.03, which differs from that reported in Shvartzvald et al. The event suffers from the well-known close/wide degeneracy, resulting in two groups of solutions for the projected separation normalized by the Einstein radius of s ? 0.15 or s ? 7. The finite source and the parallax observations allow us to measure the lens physical parameters. The lens system is an M dwarf orbited by a massive Jupiter companion at very close separation. Although the mass ratio is slightly above the planet-brown dwarf (BD) mass-ratio boundary of q = 0.03, which is generally used, the median physical mass of the companion is slightly below the planet-BD mass boundary of 13MJup. It is likely that the formation mechanisms for BDs and planets are different and the objects near the boundaries could have been formed by either mechanism. It is important to probe the distribution of such companions with masses of ?13MJup in order to statistically constrain the formation theories for both BDs and massive planets. In particular, the microlensing method is able to probe the distribution around low-mass M dwarfs and even BDs, which is challenging for other exoplanet detection methods.",

author = "Shota Miyazaki and Takahiro Sumi and Bennett, {David P.} and Bennett, {David P.} and Andrzej Udalski and Yossi Shvartzvald and Rachel Street and Valerio Bozza and Valerio Bozza and Yee, {Jennifer C.} and Bond, {Ian A.} and Nicholas Rattenbury and Naoki Koshimoto and Daisuke Suzuki and Akihiko Fukui and Akihiko Fukui and F. Abe and A. Bhattacharya and A. Bhattacharya and R. Barry and M. Donachie and H. Fujii and Y. Hirao and Y. Itow and Y. Kamei and I. Kondo and Li, {M. C.A.} and Ling, {C. H.} and Y. Matsubara and T. Matsuo and Y. Muraki and M. Nagakane and K. Ohnishi and C. Ranc and T. Saito and A. Sharan and H. Shibai and H. Suematsu and Sullivan, {D. J.} and Tristram, {P. J.} and T. Yamakawa and A. Yonehara and J. Skowron and R. Poleski and P. Mr{\'o}z and P. Mr{\'o}z and Szymaski, {M. K.} and I. Soszyski and P. Pietrukowicz and S. Kozowski and K. Ulaczyk and Wyrzykowski and Matan Friedmann and Shai Kaspi and Dan Maoz and M. Albrow and G. Christie and Depoy, {D. L.} and A. Gal-Yam and A. Gould and A. Gould and A. Gould and Lee, {C. U.} and C. Fr and I. Manulis and J. McCormick and T. Natusch and T. Natusch and H. Ngan and Pogge, {R. W.} and Pogge, {R. W.} and I. Porritt and Y. Tsapras and E. Bachelet and E. Bachelet and Hundertmark, {M. P.G.} and M. Dominik and Bramich, {D. M.} and Bramich, {D. M.} and Bramich, {D. M.} and A. Cassan and Jaimes, {R. Figuera} and Jaimes, {R. Figuera} and K. Horne and R. Schmidt and C. Snodgrass and J. Wambsganss and Steele, {I. A.} and J. Menzies and S. Mao and J{\o}rgensen, {U. G.} and Burgdorf, {M. J.} and S. Ciceri and Novati, {S. Calchi} and G. D'Ago and G. D'Ago and G. D'Ago and Evans, {D. F.} and Hinse, {T. C.} and N. Kains and E. Kerins and H. Korhonen and L. Mancini and A. Popovas and M. Rabus and S. Rahvar and G. Scarpetta and G. Scarpetta and J. Skottfelt and J. Skottfelt and J. Southworth and G. D'Ago and N. Peixinho and N. Peixinho and P. Verma",

year = "2020",

month = feb,

day = "1",

doi = "10.3847/1538-3881/ab64de",

language = "אנגלית",

volume = "159",

journal = "Astronomical Journal",

issn = "0004-6256",

publisher = "IOP Publishing Ltd.",

number = "2",

}

Miyazaki, S, Sumi, T, Bennett, DP, Bennett, DP, Udalski, A, Shvartzvald, Y, Street, R, Bozza, V, Bozza, V, Yee, JC, Bond, IA, Rattenbury, N, Koshimoto, N, Suzuki, D, Fukui, A, Fukui, A, Abe, F, Bhattacharya, A, Bhattacharya, A, Barry, R, Donachie, M, Fujii, H, Hirao, Y, Itow, Y, Kamei, Y, Kondo, I, Li, MCA, Ling, CH, Matsubara, Y, Matsuo, T, Muraki, Y, Nagakane, M, Ohnishi, K, Ranc, C, Saito, T, Sharan, A, Shibai, H, Suematsu, H, Sullivan, DJ, Tristram, PJ, Yamakawa, T, Yonehara, A, Skowron, J, Poleski, R, Mróz, P, Mróz, P, Szymaski, MK, Soszyski, I, Pietrukowicz, P, Kozowski, S, Ulaczyk, K, Wyrzykowski, Friedmann, M, Kaspi, S, Maoz, D, Albrow, M, Christie, G, Depoy, DL, Gal-Yam, A, Gould, A, Gould, A, Gould, A, Lee, CU, Fr, C, Manulis, I, McCormick, J, Natusch, T, Natusch, T, Ngan, H, Pogge, RW, Pogge, RW, Porritt, I, Tsapras, Y, Bachelet, E, Bachelet, E, Hundertmark, MPG, Dominik, M, Bramich, DM, Bramich, DM, Bramich, DM, Cassan, A, Jaimes, RF, Jaimes, RF, Horne, K, Schmidt, R, Snodgrass, C, Wambsganss, J, Steele, IA, Menzies, J, Mao, S, Jørgensen, UG, Burgdorf, MJ, Ciceri, S, Novati, SC, D'Ago, G, D'Ago, G, D'Ago, G, Evans, DF, Hinse, TC, Kains, N, Kerins, E, Korhonen, H, Mancini, L, Popovas, A, Rabus, M, Rahvar, S, Scarpetta, G, Scarpetta, G, Skottfelt, J, Skottfelt, J, Southworth, J, D'Ago, G, Peixinho, N, Peixinho, N & Verma, P 2020, 'OGLE-2013-BLG-0911Lb: A Secondary on the Brown-dwarf Planet Boundary around an M Dwarf', Astronomical Journal, vol. 159, no. 2, 76. https://doi.org/10.3847/1538-3881/ab64de

TY - JOUR

T1 - OGLE-2013-BLG-0911Lb

T2 - A Secondary on the Brown-dwarf Planet Boundary around an M Dwarf

AU - Miyazaki, Shota

AU - Sumi, Takahiro

AU - Bennett, David P.

AU - Udalski, Andrzej

AU - Shvartzvald, Yossi

AU - Street, Rachel

AU - Bozza, Valerio

AU - Yee, Jennifer C.

AU - Bond, Ian A.

AU - Rattenbury, Nicholas

AU - Koshimoto, Naoki

AU - Suzuki, Daisuke

AU - Fukui, Akihiko

AU - Abe, F.

AU - Bhattacharya, A.

AU - Barry, R.

AU - Donachie, M.

AU - Fujii, H.

AU - Hirao, Y.

AU - Itow, Y.

AU - Kamei, Y.

AU - Kondo, I.

AU - Li, M. C.A.

AU - Ling, C. H.

AU - Matsubara, Y.

AU - Matsuo, T.

AU - Muraki, Y.

AU - Nagakane, M.

AU - Ohnishi, K.

AU - Ranc, C.

AU - Saito, T.

AU - Sharan, A.

AU - Shibai, H.

AU - Suematsu, H.

AU - Sullivan, D. J.

AU - Tristram, P. J.

AU - Yamakawa, T.

AU - Yonehara, A.

AU - Skowron, J.

AU - Poleski, R.

AU - Mróz, P.

AU - Szymaski, M. K.

AU - Soszyski, I.

AU - Pietrukowicz, P.

AU - Kozowski, S.

AU - Ulaczyk, K.

AU - Wyrzykowski,

AU - Friedmann, Matan

AU - Kaspi, Shai

AU - Maoz, Dan

AU - Albrow, M.

AU - Christie, G.

AU - Depoy, D. L.

AU - Gal-Yam, A.

AU - Gould, A.

AU - Lee, C. U.

AU - Fr, C.

AU - Manulis, I.

AU - McCormick, J.

AU - Natusch, T.

AU - Ngan, H.

AU - Pogge, R. W.

AU - Porritt, I.

AU - Tsapras, Y.

AU - Bachelet, E.

AU - Hundertmark, M. P.G.

AU - Dominik, M.

AU - Bramich, D. M.

AU - Cassan, A.

AU - Jaimes, R. Figuera

AU - Horne, K.

AU - Schmidt, R.

AU - Snodgrass, C.

AU - Wambsganss, J.

AU - Steele, I. A.

AU - Menzies, J.

AU - Mao, S.

AU - Jørgensen, U. G.

AU - Burgdorf, M. J.

AU - Ciceri, S.

AU - Novati, S. Calchi

AU - D'Ago, G.

AU - Evans, D. F.

AU - Hinse, T. C.

AU - Kains, N.

AU - Kerins, E.

AU - Korhonen, H.

AU - Mancini, L.

AU - Popovas, A.

AU - Rabus, M.

AU - Rahvar, S.

AU - Scarpetta, G.

AU - Skottfelt, J.

AU - Southworth, J.

AU - D'Ago, G.

AU - Peixinho, N.

AU - Verma, P.

PY - 2020/2/1

Y1 - 2020/2/1

N2 - We present the analysis of the binary-lens microlensing event OGLE-2013-BLG-0911. The best-fit solutions indicate the binary mass ratio of q ? 0.03, which differs from that reported in Shvartzvald et al. The event suffers from the well-known close/wide degeneracy, resulting in two groups of solutions for the projected separation normalized by the Einstein radius of s ? 0.15 or s ? 7. The finite source and the parallax observations allow us to measure the lens physical parameters. The lens system is an M dwarf orbited by a massive Jupiter companion at very close separation. Although the mass ratio is slightly above the planet-brown dwarf (BD) mass-ratio boundary of q = 0.03, which is generally used, the median physical mass of the companion is slightly below the planet-BD mass boundary of 13MJup. It is likely that the formation mechanisms for BDs and planets are different and the objects near the boundaries could have been formed by either mechanism. It is important to probe the distribution of such companions with masses of ?13MJup in order to statistically constrain the formation theories for both BDs and massive planets. In particular, the microlensing method is able to probe the distribution around low-mass M dwarfs and even BDs, which is challenging for other exoplanet detection methods.

AB - We present the analysis of the binary-lens microlensing event OGLE-2013-BLG-0911. The best-fit solutions indicate the binary mass ratio of q ? 0.03, which differs from that reported in Shvartzvald et al. The event suffers from the well-known close/wide degeneracy, resulting in two groups of solutions for the projected separation normalized by the Einstein radius of s ? 0.15 or s ? 7. The finite source and the parallax observations allow us to measure the lens physical parameters. The lens system is an M dwarf orbited by a massive Jupiter companion at very close separation. Although the mass ratio is slightly above the planet-brown dwarf (BD) mass-ratio boundary of q = 0.03, which is generally used, the median physical mass of the companion is slightly below the planet-BD mass boundary of 13MJup. It is likely that the formation mechanisms for BDs and planets are different and the objects near the boundaries could have been formed by either mechanism. It is important to probe the distribution of such companions with masses of ?13MJup in order to statistically constrain the formation theories for both BDs and massive planets. In particular, the microlensing method is able to probe the distribution around low-mass M dwarfs and even BDs, which is challenging for other exoplanet detection methods.

UR - http://www.scopus.com/inward/record.url?scp=85086514747&partnerID=8YFLogxK

U2 - 10.3847/1538-3881/ab64de

DO - 10.3847/1538-3881/ab64de

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AN - SCOPUS:85086514747

SN - 0004-6256

VL - 159

JO - Astronomical Journal

JF - Astronomical Journal

IS - 2

M1 - 76

ER -

OGLE-2013-BLG-0911Lb: A Secondary on the Brown-dwarf Planet Boundary around an M Dwarf

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