MASSES AND ORBITAL CONSTRAINTS FOR THE OGLE-2006-BLG-109Lb,c JUPITER/SATURN ANALOG PLANETARY SYSTEM

D. P. Bennett; S. H. Rhie; S. Nikolaev; B. S. Gaudi; A. Udalski; A. Gould; G. W. Christie; D. Maoz; S. Dong; J. McCormick; M. K. Szymanski; P. J. Tristram; B. Macintosh; K. H. Cook; M. Kubiak; G. Pietrzynski; I. Soszynski; O. Szewczyk; K. Ulaczyk; L. Wyrzykowski; D. L. DePoy; C. Han; S. Kaspi; C-U. Lee; F. Mallia; T. Natusch; B-G. Park; R. W. Pogge; D. Polishook; F. Abe; I. A. Bond; C. S. Botzler; A. Fukui; J. B. Hearnshaw; Y. Itow; K. Kamiya; A. V. Korpela; P. M. Kilmartin; W. Lin; J. Ling; K. Masuda; Y. Matsubara; M. Motomura; Y. Muraki; S. Nakamura; T. Okumura; K. Ohnishi; Y. C. Perrott; N. J. Rattenbury; T. Sako; To. Saito; S. Sato; L. Skuljan; D. J. Sullivan; T. Sumi; W. L. Sweatman; P. C. M. Yock; M. Albrow; A. Allan; J-P. Beaulieu; D. M. Bramich; M. J. Burgdorf; C. Coutures; Martin Dominik; S. Dieters; P. Fouque; J. Greenhill; K. Horne; C. Snodgrass; I. Steele; Y. Tsapras; B. Chaboyer; A. Crocker; S. Frank

doi:10.1088/0004-637X/713/2/837

MASSES AND ORBITAL CONSTRAINTS FOR THE OGLE-2006-BLG-109Lb,c JUPITER/SATURN ANALOG PLANETARY SYSTEM

D. P. Bennett, S. H. Rhie, S. Nikolaev, B. S. Gaudi, A. Udalski, A. Gould, G. W. Christie, D. Maoz, S. Dong, J. McCormick, M. K. Szymanski, P. J. Tristram, B. Macintosh, K. H. Cook, M. Kubiak, G. Pietrzynski, I. Soszynski, O. Szewczyk, K. Ulaczyk, L. WyrzykowskiD. L. DePoy, C. Han, S. Kaspi, C-U. Lee, F. Mallia, T. Natusch, B-G. Park, R. W. Pogge, D. Polishook, F. Abe, I. A. Bond, C. S. Botzler, A. Fukui, J. B. Hearnshaw, Y. Itow, K. Kamiya, A. V. Korpela, P. M. Kilmartin, W. Lin, J. Ling, K. Masuda, Y. Matsubara, M. Motomura, Y. Muraki, S. Nakamura, T. Okumura, K. Ohnishi, Y. C. Perrott, N. J. Rattenbury, T. Sako, To. Saito, S. Sato, L. Skuljan, D. J. Sullivan, T. Sumi, W. L. Sweatman, P. C. M. Yock, M. Albrow, A. Allan, J-P. Beaulieu, D. M. Bramich, M. J. Burgdorf, C. Coutures, Martin Dominik, S. Dieters, P. Fouque, J. Greenhill, K. Horne, C. Snodgrass, I. Steele, Y. Tsapras, B. Chaboyer, A. Crocker, S. Frank

School of Physics and Astronomy

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Abstract

We present a new analysis of the Jupiter+Saturn analog system, OGLE-2006-BLG-109Lb,c, which was the first double planet system discovered with the gravitational microlensing method. This is the only multi-planet system discovered by any method with measured masses for the star and both planets. In addition to the signatures of two planets, this event also exhibits a microlensing parallax signature and finite source effects that provide a direct measure of the masses of the star and planets, and the expected brightness of the host star is confirmed by Keck AO imaging, yielding masses of M-* = 0.51(-0.04)(+0.05) M-circle dot, M-b = 231 +/- 19 M-circle plus, and M-c = 86 +/- 7 M-circle plus. The Saturn-analog planet in this system had a planetary light-curve deviation that lasted for 11 days, and as a result, the effects of the orbital motion are visible in the microlensing light curve. We find that four of the six orbital parameters are tightly constrained and that a fifth parameter, the orbital acceleration, is weakly constrained. No orbital information is available for the Jupiter-analog planet, but its presence helps to constrain the orbital motion of the Saturn-analog planet. Assuming co-planar orbits, we find an orbital eccentricity of epsilon = 0.15(-0.10) (+0.17) and an orbital inclination of i = 64 degrees(+ 4 degrees)(-7 degrees) The 95% confidence level lower limit on the inclination of i > 49 degrees implies that this planetary system can be detected and studied via radial velocity measurements using a telescope of greater than or similar to 30 m aperture.

Original language	English
Pages (from-to)	837-855
Number of pages	19
Journal	Astrophysical Journal
Volume	713
Issue number	2
DOIs	https://doi.org/10.1088/0004-637X/713/2/837
Publication status	Published - 20 Apr 2010

Keywords

gravitational lensing: micro
planetary systems
GRAVITATIONAL LENSING EXPERIMENT
SURFACE BRIGHTNESS RELATIONS
LIMB-DARKENING COEFFICIENTS
M-CIRCLE-DOT
GALACTIC BULGE
GIANT PLANETS
LIGHT CURVES
DWARF STARS
SNOW LINE
EVENT MOA-2007-BLG-192

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10.1088/0004-637X/713/2/837

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Bennett, D. P., Rhie, S. H., Nikolaev, S., Gaudi, B. S., Udalski, A., Gould, A., Christie, G. W., Maoz, D., Dong, S., McCormick, J., Szymanski, M. K., Tristram, P. J., Macintosh, B., Cook, K. H., Kubiak, M., Pietrzynski, G., Soszynski, I., Szewczyk, O., Ulaczyk, K., ... Frank, S. (2010). MASSES AND ORBITAL CONSTRAINTS FOR THE OGLE-2006-BLG-109Lb,c JUPITER/SATURN ANALOG PLANETARY SYSTEM. Astrophysical Journal, 713(2), 837-855. https://doi.org/10.1088/0004-637X/713/2/837

@article{a4d2c30fe79d4e6fbe4fb9f73508de82,

title = "MASSES AND ORBITAL CONSTRAINTS FOR THE OGLE-2006-BLG-109Lb,c JUPITER/SATURN ANALOG PLANETARY SYSTEM",

abstract = "We present a new analysis of the Jupiter+Saturn analog system, OGLE-2006-BLG-109Lb,c, which was the first double planet system discovered with the gravitational microlensing method. This is the only multi-planet system discovered by any method with measured masses for the star and both planets. In addition to the signatures of two planets, this event also exhibits a microlensing parallax signature and finite source effects that provide a direct measure of the masses of the star and planets, and the expected brightness of the host star is confirmed by Keck AO imaging, yielding masses of M-* = 0.51(-0.04)(+0.05) M-circle dot, M-b = 231 +/- 19 M-circle plus, and M-c = 86 +/- 7 M-circle plus. The Saturn-analog planet in this system had a planetary light-curve deviation that lasted for 11 days, and as a result, the effects of the orbital motion are visible in the microlensing light curve. We find that four of the six orbital parameters are tightly constrained and that a fifth parameter, the orbital acceleration, is weakly constrained. No orbital information is available for the Jupiter-analog planet, but its presence helps to constrain the orbital motion of the Saturn-analog planet. Assuming co-planar orbits, we find an orbital eccentricity of epsilon = 0.15(-0.10) (+0.17) and an orbital inclination of i = 64 degrees(+ 4 degrees)(-7 degrees) The 95% confidence level lower limit on the inclination of i > 49 degrees implies that this planetary system can be detected and studied via radial velocity measurements using a telescope of greater than or similar to 30 m aperture.",

keywords = "gravitational lensing: micro, planetary systems, GRAVITATIONAL LENSING EXPERIMENT, SURFACE BRIGHTNESS RELATIONS, LIMB-DARKENING COEFFICIENTS, M-CIRCLE-DOT, GALACTIC BULGE, GIANT PLANETS, LIGHT CURVES, DWARF STARS, SNOW LINE, EVENT MOA-2007-BLG-192",

author = "Bennett, {D. P.} and Rhie, {S. H.} and S. Nikolaev and Gaudi, {B. S.} and A. Udalski and A. Gould and Christie, {G. W.} and D. Maoz and S. Dong and J. McCormick and Szymanski, {M. K.} and Tristram, {P. J.} and B. Macintosh and Cook, {K. H.} and M. Kubiak and G. Pietrzynski and I. Soszynski and O. Szewczyk and K. Ulaczyk and L. Wyrzykowski and DePoy, {D. L.} and C. Han and S. Kaspi and C-U. Lee and F. Mallia and T. Natusch and B-G. Park and Pogge, {R. W.} and D. Polishook and F. Abe and Bond, {I. A.} and Botzler, {C. S.} and A. Fukui and Hearnshaw, {J. B.} and Y. Itow and K. Kamiya and Korpela, {A. V.} and Kilmartin, {P. M.} and W. Lin and J. Ling and K. Masuda and Y. Matsubara and M. Motomura and Y. Muraki and S. Nakamura and T. Okumura and K. Ohnishi and Perrott, {Y. C.} and Rattenbury, {N. J.} and T. Sako and To. Saito and S. Sato and L. Skuljan and Sullivan, {D. J.} and T. Sumi and Sweatman, {W. L.} and Yock, {P. C. M.} and M. Albrow and A. Allan and J-P. Beaulieu and Bramich, {D. M.} and Burgdorf, {M. J.} and C. Coutures and Martin Dominik and S. Dieters and P. Fouque and J. Greenhill and K. Horne and C. Snodgrass and I. Steele and Y. Tsapras and B. Chaboyer and A. Crocker and S. Frank",

year = "2010",

month = apr,

day = "20",

doi = "10.1088/0004-637X/713/2/837",

language = "English",

volume = "713",

pages = "837--855",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

number = "2",

}

Bennett, DP, Rhie, SH, Nikolaev, S, Gaudi, BS, Udalski, A, Gould, A, Christie, GW, Maoz, D, Dong, S, McCormick, J, Szymanski, MK, Tristram, PJ, Macintosh, B, Cook, KH, Kubiak, M, Pietrzynski, G, Soszynski, I, Szewczyk, O, Ulaczyk, K, Wyrzykowski, L, DePoy, DL, Han, C, Kaspi, S, Lee, C-U, Mallia, F, Natusch, T, Park, B-G, Pogge, RW, Polishook, D, Abe, F, Bond, IA, Botzler, CS, Fukui, A, Hearnshaw, JB, Itow, Y, Kamiya, K, Korpela, AV, Kilmartin, PM, Lin, W, Ling, J, Masuda, K, Matsubara, Y, Motomura, M, Muraki, Y, Nakamura, S, Okumura, T, Ohnishi, K, Perrott, YC, Rattenbury, NJ, Sako, T, Saito, T, Sato, S, Skuljan, L, Sullivan, DJ, Sumi, T, Sweatman, WL, Yock, PCM, Albrow, M, Allan, A, Beaulieu, J-P, Bramich, DM, Burgdorf, MJ, Coutures, C, Dominik, M, Dieters, S, Fouque, P, Greenhill, J, Horne, K, Snodgrass, C, Steele, I, Tsapras, Y, Chaboyer, B, Crocker, A & Frank, S 2010, 'MASSES AND ORBITAL CONSTRAINTS FOR THE OGLE-2006-BLG-109Lb,c JUPITER/SATURN ANALOG PLANETARY SYSTEM', Astrophysical Journal, vol. 713, no. 2, pp. 837-855. https://doi.org/10.1088/0004-637X/713/2/837

TY - JOUR

T1 - MASSES AND ORBITAL CONSTRAINTS FOR THE OGLE-2006-BLG-109Lb,c JUPITER/SATURN ANALOG PLANETARY SYSTEM

AU - Bennett, D. P.

AU - Rhie, S. H.

AU - Nikolaev, S.

AU - Gaudi, B. S.

AU - Udalski, A.

AU - Gould, A.

AU - Christie, G. W.

AU - Maoz, D.

AU - Dong, S.

AU - McCormick, J.

AU - Szymanski, M. K.

AU - Tristram, P. J.

AU - Macintosh, B.

AU - Cook, K. H.

AU - Kubiak, M.

AU - Pietrzynski, G.

AU - Soszynski, I.

AU - Szewczyk, O.

AU - Ulaczyk, K.

AU - Wyrzykowski, L.

AU - DePoy, D. L.

AU - Han, C.

AU - Kaspi, S.

AU - Lee, C-U.

AU - Mallia, F.

AU - Natusch, T.

AU - Park, B-G.

AU - Pogge, R. W.

AU - Polishook, D.

AU - Abe, F.

AU - Bond, I. A.

AU - Botzler, C. S.

AU - Fukui, A.

AU - Hearnshaw, J. B.

AU - Itow, Y.

AU - Kamiya, K.

AU - Korpela, A. V.

AU - Kilmartin, P. M.

AU - Lin, W.

AU - Ling, J.

AU - Masuda, K.

AU - Matsubara, Y.

AU - Motomura, M.

AU - Muraki, Y.

AU - Nakamura, S.

AU - Okumura, T.

AU - Ohnishi, K.

AU - Perrott, Y. C.

AU - Rattenbury, N. J.

AU - Sako, T.

AU - Saito, To.

AU - Sato, S.

AU - Skuljan, L.

AU - Sullivan, D. J.

AU - Sumi, T.

AU - Sweatman, W. L.

AU - Yock, P. C. M.

AU - Albrow, M.

AU - Allan, A.

AU - Beaulieu, J-P.

AU - Bramich, D. M.

AU - Burgdorf, M. J.

AU - Coutures, C.

AU - Dominik, Martin

AU - Dieters, S.

AU - Fouque, P.

AU - Greenhill, J.

AU - Horne, K.

AU - Snodgrass, C.

AU - Steele, I.

AU - Tsapras, Y.

AU - Chaboyer, B.

AU - Crocker, A.

AU - Frank, S.

PY - 2010/4/20

Y1 - 2010/4/20

N2 - We present a new analysis of the Jupiter+Saturn analog system, OGLE-2006-BLG-109Lb,c, which was the first double planet system discovered with the gravitational microlensing method. This is the only multi-planet system discovered by any method with measured masses for the star and both planets. In addition to the signatures of two planets, this event also exhibits a microlensing parallax signature and finite source effects that provide a direct measure of the masses of the star and planets, and the expected brightness of the host star is confirmed by Keck AO imaging, yielding masses of M-* = 0.51(-0.04)(+0.05) M-circle dot, M-b = 231 +/- 19 M-circle plus, and M-c = 86 +/- 7 M-circle plus. The Saturn-analog planet in this system had a planetary light-curve deviation that lasted for 11 days, and as a result, the effects of the orbital motion are visible in the microlensing light curve. We find that four of the six orbital parameters are tightly constrained and that a fifth parameter, the orbital acceleration, is weakly constrained. No orbital information is available for the Jupiter-analog planet, but its presence helps to constrain the orbital motion of the Saturn-analog planet. Assuming co-planar orbits, we find an orbital eccentricity of epsilon = 0.15(-0.10) (+0.17) and an orbital inclination of i = 64 degrees(+ 4 degrees)(-7 degrees) The 95% confidence level lower limit on the inclination of i > 49 degrees implies that this planetary system can be detected and studied via radial velocity measurements using a telescope of greater than or similar to 30 m aperture.

AB - We present a new analysis of the Jupiter+Saturn analog system, OGLE-2006-BLG-109Lb,c, which was the first double planet system discovered with the gravitational microlensing method. This is the only multi-planet system discovered by any method with measured masses for the star and both planets. In addition to the signatures of two planets, this event also exhibits a microlensing parallax signature and finite source effects that provide a direct measure of the masses of the star and planets, and the expected brightness of the host star is confirmed by Keck AO imaging, yielding masses of M-* = 0.51(-0.04)(+0.05) M-circle dot, M-b = 231 +/- 19 M-circle plus, and M-c = 86 +/- 7 M-circle plus. The Saturn-analog planet in this system had a planetary light-curve deviation that lasted for 11 days, and as a result, the effects of the orbital motion are visible in the microlensing light curve. We find that four of the six orbital parameters are tightly constrained and that a fifth parameter, the orbital acceleration, is weakly constrained. No orbital information is available for the Jupiter-analog planet, but its presence helps to constrain the orbital motion of the Saturn-analog planet. Assuming co-planar orbits, we find an orbital eccentricity of epsilon = 0.15(-0.10) (+0.17) and an orbital inclination of i = 64 degrees(+ 4 degrees)(-7 degrees) The 95% confidence level lower limit on the inclination of i > 49 degrees implies that this planetary system can be detected and studied via radial velocity measurements using a telescope of greater than or similar to 30 m aperture.

KW - gravitational lensing: micro

KW - planetary systems

KW - GRAVITATIONAL LENSING EXPERIMENT

KW - SURFACE BRIGHTNESS RELATIONS

KW - LIMB-DARKENING COEFFICIENTS

KW - M-CIRCLE-DOT

KW - GALACTIC BULGE

KW - GIANT PLANETS

KW - LIGHT CURVES

KW - DWARF STARS

KW - SNOW LINE

KW - EVENT MOA-2007-BLG-192

UR - http://www.scopus.com/inward/record.url?scp=77950266167&partnerID=8YFLogxK

U2 - 10.1088/0004-637X/713/2/837

DO - 10.1088/0004-637X/713/2/837

M3 - Article

SN - 0004-637X

VL - 713

SP - 837

EP - 855

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2

ER -

MASSES AND ORBITAL CONSTRAINTS FOR THE OGLE-2006-BLG-109Lb,c JUPITER/SATURN ANALOG PLANETARY SYSTEM

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MASSES AND ORBITAL CONSTRAINTS FOR THE OGLE-2006-BLG-109Lb,c JUPITER/SATURN ANALOG PLANETARY SYSTEM

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Keywords

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Astrophysics in St Andrews: Astrophysics in St Andrews / SUPA (Continuan of Rolling Grant - XPP089

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