DISCOVERY AND MASS MEASUREMENTS OF A COLD, 10 EARTH MASS PLANET AND ITS HOST STAR

Y. Muraki; C. Han; D. P. Bennett; D. Suzuki; L. A. G. Monard; R. Street; U. G. Jorgensen; P. Kundurthy; J. Skowron; A. C. Becker; M. D. Albrow; P. Fouque; D. Heyrovsky; R. K. Barry; J. -P. Beaulieu; D. D. Wellnitz; I. A. Bond; T. Sumi; S. Dong; B. S. Gaudi; M. Bramich; M. Dominik; F. Abe; C. S. Botzler; M. Freeman; A. Fukui; K. Furusawa; F. Hayashi; J. B. Hearnshaw; S. Hosaka; Y. Itow; K. Kamiya; A. V. Korpela; P. M. Kilmartin; W. Lin; C. H. Ling; S. Makita; K. Masuda; Y. Matsubara; N. Miyake; K. Nishimoto; K. Ohnishi; Y. C. Perrott; N. J. Rattenbury; To. Saito; L. Skuljan; D. J. Sullivan; W. L. Sweatman; P. J. Tristram; K. Wada; P. C. M. Yock; G. W. Christie; D. L. DePoy; E. Gorbikov; A. Gould; S. Kaspi; C. -U. Lee; F. Mallia; D. Maoz; J. McCormick; D. Moorhouse; T. Natusch; B. -G. Park; R. W. Pogge; D. Polishook; A. Shporer; G. Thornley; J. C. Yee; A. Allan; P. Browne; K. Horne; N. Kains; C. Snodgrass; I. Steele; Y. Tsapras; V. Batista; C. S. Bennett; S. Brillant; J. A. R. Caldwell; A. Cassan; A. Cole; R. Corrales; Ch Coutures; S. Dieters; D. Dominis Prester; J. Donatowicz; J. Greenhill; D. Kubas; J. -B. Marquette; R. Martin; J. Menzies; K. C. Sahu; I. Waldman; A. Williams; M. Zub; H. Bourhrous; Y. Matsuoka; T. Nagayama; N. Oi; Z. Randriamanakoto; V. Bozza; M. J. Burgdorf; S. Calchi Novati; S. Dreizler; F. Finet; M. Glitrup; K. Harpsoe; T. C. Hinse; M. Hundertmark; C. Liebig; G. Maier; L. Mancini; M. Mathiasen; S. Rahvar; D. Ricci; G. Scarpetta; J. Skottfelt; J. Surdej; J. Southworth; J. Wambsganss; F. Zimmer; A. Udalski; R. Poleski; L. Wyrzykowski; K. Ulaczyk; M. K. Szymanski; M. Kubiak; G. Pietrzynski; I. Soszynski

doi:10.1088/0004-637X/741/1/22

DISCOVERY AND MASS MEASUREMENTS OF A COLD, 10 EARTH MASS PLANET AND ITS HOST STAR

Y. Muraki, C. Han, D. P. Bennett, D. Suzuki, L. A. G. Monard, R. Street, U. G. Jorgensen, P. Kundurthy, J. Skowron, A. C. Becker, M. D. Albrow, P. Fouque, D. Heyrovsky, R. K. Barry, J. -P. Beaulieu, D. D. Wellnitz, I. A. Bond, T. Sumi, S. Dong, B. S. GaudiM. Bramich, M. Dominik, F. Abe, C. S. Botzler, M. Freeman, A. Fukui, K. Furusawa, F. Hayashi, J. B. Hearnshaw, S. Hosaka, Y. Itow, K. Kamiya, A. V. Korpela, P. M. Kilmartin, W. Lin, C. H. Ling, S. Makita, K. Masuda, Y. Matsubara, N. Miyake, K. Nishimoto, K. Ohnishi, Y. C. Perrott, N. J. Rattenbury, To. Saito, L. Skuljan, D. J. Sullivan, W. L. Sweatman, P. J. Tristram, K. Wada, P. C. M. Yock, G. W. Christie, D. L. DePoy, E. Gorbikov, A. Gould, S. Kaspi, C. -U. Lee, F. Mallia, D. Maoz, J. McCormick, D. Moorhouse, T. Natusch, B. -G. Park, R. W. Pogge, D. Polishook, A. Shporer, G. Thornley, J. C. Yee, A. Allan, P. Browne, K. Horne, N. Kains, C. Snodgrass, I. Steele, Y. Tsapras, V. Batista, C. S. Bennett, S. Brillant, J. A. R. Caldwell, A. Cassan, A. Cole, R. Corrales, Ch Coutures, S. Dieters, D. Dominis Prester, J. Donatowicz, J. Greenhill, D. Kubas, J. -B. Marquette, R. Martin, J. Menzies, K. C. Sahu, I. Waldman, A. Williams, M. Zub, H. Bourhrous, Y. Matsuoka, T. Nagayama, N. Oi, Z. Randriamanakoto, V. Bozza, M. J. Burgdorf, S. Calchi Novati, S. Dreizler, F. Finet, M. Glitrup, K. Harpsoe, T. C. Hinse, M. Hundertmark, C. Liebig, G. Maier, L. Mancini, M. Mathiasen, S. Rahvar, D. Ricci, G. Scarpetta, J. Skottfelt, J. Surdej, J. Southworth, J. Wambsganss, F. Zimmer, A. Udalski, R. Poleski, L. Wyrzykowski, K. Ulaczyk, M. K. Szymanski, M. Kubiak, G. Pietrzynski, I. Soszynski

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

We present the discovery and mass measurement of the cold, low-mass planet MOA-2009-BLG-266Lb, performed with the gravitational microlensing method. This planet has a mass of m(p) = 10.4 +/- 1.7 M-circle plus and orbits a star of mass M-star = 0.56 +/- 0.09 M-circle dot at a semimajor axis of a = 3.2(-0.5)(+1.9) AU and an orbital period of P = 7.6(-1.5)(+7.7) yrs. The planet and host star mass measurements are enabled by the measurement of the microlensing parallax effect, which is seen primarily in the light curve distortion due to the orbital motion of the Earth. But the analysis also demonstrates the capability to measure the microlensing parallax with the Deep Impact (or EPOXI) spacecraft in a heliocentric orbit. The planet mass and orbital distance are similar to predictions for the critical core mass needed to accrete a substantial gaseous envelope, and thus may indicate that this planet is a "failed" gas giant. This and future microlensing detections will test planet formation theory predictions regarding the prevalence and masses of such planets.

Original language	English
Article number	22
Pages (from-to)	-
Number of pages	15
Journal	Astrophysical Journal
Volume	741
Issue number	1
DOIs	https://doi.org/10.1088/0004-637X/741/1/22
Publication status	Published - 1 Nov 2011

Keywords

gravitational lensing: micro
planetary systems
MAGNIFICATION MICROLENSING EVENTS
GRAVITATIONAL LENSING EXPERIMENT
STELLAR ATMOSPHERE MODELS
SNOW LINE
EXTRASOLAR PLANETS
GALACTIC BULGE
SUPER-EARTHS
JUPITER/SATURN ANALOG
DETERMINISTIC MODEL
CORE ACCRETION

Access to Document

10.1088/0004-637X/741/1/22

Astrophysics in St Andrews: Astrophysics in St Andrews / SUPA (Continuan of Rolling Grant - XPP089
Bonnell, I. A. (PI), Cameron, A. C. (CoI), Dominik, M. (CoI), Driver, S. P. (CoI), Greaves, J. S. (CoI), Horne, K. D. (CoI), Jardine, M. M. (CoI), Wood, K. (CoI) & Zhao, H. (CoI)
Science & Technology Facilities Council
1/04/09 → 31/03/12
Project: Standard

Cite this

Muraki, Y., Han, C., Bennett, D. P., Suzuki, D., Monard, L. A. G., Street, R., Jorgensen, U. G., Kundurthy, P., Skowron, J., Becker, A. C., Albrow, M. D., Fouque, P., Heyrovsky, D., Barry, R. K., Beaulieu, J. .-P., Wellnitz, D. D., Bond, I. A., Sumi, T., Dong, S., ... Soszynski, I. (2011). DISCOVERY AND MASS MEASUREMENTS OF A COLD, 10 EARTH MASS PLANET AND ITS HOST STAR. Astrophysical Journal, 741(1), -. Article 22. https://doi.org/10.1088/0004-637X/741/1/22

@article{dc4c6cd98753445ba467f35a5a8f5214,

title = "DISCOVERY AND MASS MEASUREMENTS OF A COLD, 10 EARTH MASS PLANET AND ITS HOST STAR",

abstract = "We present the discovery and mass measurement of the cold, low-mass planet MOA-2009-BLG-266Lb, performed with the gravitational microlensing method. This planet has a mass of m(p) = 10.4 +/- 1.7 M-circle plus and orbits a star of mass M-star = 0.56 +/- 0.09 M-circle dot at a semimajor axis of a = 3.2(-0.5)(+1.9) AU and an orbital period of P = 7.6(-1.5)(+7.7) yrs. The planet and host star mass measurements are enabled by the measurement of the microlensing parallax effect, which is seen primarily in the light curve distortion due to the orbital motion of the Earth. But the analysis also demonstrates the capability to measure the microlensing parallax with the Deep Impact (or EPOXI) spacecraft in a heliocentric orbit. The planet mass and orbital distance are similar to predictions for the critical core mass needed to accrete a substantial gaseous envelope, and thus may indicate that this planet is a {"}failed{"} gas giant. This and future microlensing detections will test planet formation theory predictions regarding the prevalence and masses of such planets.",

keywords = "gravitational lensing: micro, planetary systems, MAGNIFICATION MICROLENSING EVENTS, GRAVITATIONAL LENSING EXPERIMENT, STELLAR ATMOSPHERE MODELS, SNOW LINE, EXTRASOLAR PLANETS, GALACTIC BULGE, SUPER-EARTHS, JUPITER/SATURN ANALOG, DETERMINISTIC MODEL, CORE ACCRETION",

author = "Y. Muraki and C. Han and Bennett, {D. P.} and D. Suzuki and Monard, {L. A. G.} and R. Street and Jorgensen, {U. G.} and P. Kundurthy and J. Skowron and Becker, {A. C.} and Albrow, {M. D.} and P. Fouque and D. Heyrovsky and Barry, {R. K.} and Beaulieu, {J. -P.} and Wellnitz, {D. D.} and Bond, {I. A.} and T. Sumi and S. Dong and Gaudi, {B. S.} and M. Bramich and M. Dominik and F. Abe and Botzler, {C. S.} and M. Freeman and A. Fukui and K. Furusawa and F. Hayashi and Hearnshaw, {J. B.} and S. Hosaka and Y. Itow and K. Kamiya and Korpela, {A. V.} and Kilmartin, {P. M.} and W. Lin and Ling, {C. H.} and S. Makita and K. Masuda and Y. Matsubara and N. Miyake and K. Nishimoto and K. Ohnishi and Perrott, {Y. C.} and Rattenbury, {N. J.} and To. Saito and L. Skuljan and Sullivan, {D. J.} and Sweatman, {W. L.} and Tristram, {P. J.} and K. Wada and Yock, {P. C. M.} and Christie, {G. W.} and DePoy, {D. L.} and E. Gorbikov and A. Gould and S. Kaspi and Lee, {C. -U.} and F. Mallia and D. Maoz and J. McCormick and D. Moorhouse and T. Natusch and Park, {B. -G.} and Pogge, {R. W.} and D. Polishook and A. Shporer and G. Thornley and Yee, {J. C.} and A. Allan and P. Browne and K. Horne and N. Kains and C. Snodgrass and I. Steele and Y. Tsapras and V. Batista and Bennett, {C. S.} and S. Brillant and Caldwell, {J. A. R.} and A. Cassan and A. Cole and R. Corrales and Ch Coutures and S. Dieters and Prester, {D. Dominis} and J. Donatowicz and J. Greenhill and D. Kubas and Marquette, {J. -B.} and R. Martin and J. Menzies and Sahu, {K. C.} and I. Waldman and A. Williams and M. Zub and H. Bourhrous and Y. Matsuoka and T. Nagayama and N. Oi and Z. Randriamanakoto and V. Bozza and Burgdorf, {M. J.} and {Calchi Novati}, S. and S. Dreizler and F. Finet and M. Glitrup and K. Harpsoe and Hinse, {T. C.} and M. Hundertmark and C. Liebig and G. Maier and L. Mancini and M. Mathiasen and S. Rahvar and D. Ricci and G. Scarpetta and J. Skottfelt and J. Surdej and J. Southworth and J. Wambsganss and F. Zimmer and A. Udalski and R. Poleski and L. Wyrzykowski and K. Ulaczyk and Szymanski, {M. K.} and M. Kubiak and G. Pietrzynski and I. Soszynski",

year = "2011",

month = nov,

day = "1",

doi = "10.1088/0004-637X/741/1/22",

language = "English",

volume = "741",

pages = "--",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

number = "1",

}

Muraki, Y, Han, C, Bennett, DP, Suzuki, D, Monard, LAG, Street, R, Jorgensen, UG, Kundurthy, P, Skowron, J, Becker, AC, Albrow, MD, Fouque, P, Heyrovsky, D, Barry, RK, Beaulieu, J-P, Wellnitz, DD, Bond, IA, Sumi, T, Dong, S, Gaudi, BS, Bramich, M, Dominik, M, Abe, F, Botzler, CS, Freeman, M, Fukui, A, Furusawa, K, Hayashi, F, Hearnshaw, JB, Hosaka, S, Itow, Y, Kamiya, K, Korpela, AV, Kilmartin, PM, Lin, W, Ling, CH, Makita, S, Masuda, K, Matsubara, Y, Miyake, N, Nishimoto, K, Ohnishi, K, Perrott, YC, Rattenbury, NJ, Saito, T, Skuljan, L, Sullivan, DJ, Sweatman, WL, Tristram, PJ, Wada, K, Yock, PCM, Christie, GW, DePoy, DL, Gorbikov, E, Gould, A, Kaspi, S, Lee, C-U, Mallia, F, Maoz, D, McCormick, J, Moorhouse, D, Natusch, T, Park, B-G, Pogge, RW, Polishook, D, Shporer, A, Thornley, G, Yee, JC, Allan, A, Browne, P, Horne, K, Kains, N, Snodgrass, C, Steele, I, Tsapras, Y, Batista, V, Bennett, CS, Brillant, S, Caldwell, JAR, Cassan, A, Cole, A, Corrales, R, Coutures, C, Dieters, S, Prester, DD, Donatowicz, J, Greenhill, J, Kubas, D, Marquette, J-B, Martin, R, Menzies, J, Sahu, KC, Waldman, I, Williams, A, Zub, M, Bourhrous, H, Matsuoka, Y, Nagayama, T, Oi, N, Randriamanakoto, Z, Bozza, V, Burgdorf, MJ, Calchi Novati, S, Dreizler, S, Finet, F, Glitrup, M, Harpsoe, K, Hinse, TC, Hundertmark, M, Liebig, C, Maier, G, Mancini, L, Mathiasen, M, Rahvar, S, Ricci, D, Scarpetta, G, Skottfelt, J, Surdej, J, Southworth, J, Wambsganss, J, Zimmer, F, Udalski, A, Poleski, R, Wyrzykowski, L, Ulaczyk, K, Szymanski, MK, Kubiak, M, Pietrzynski, G & Soszynski, I 2011, 'DISCOVERY AND MASS MEASUREMENTS OF A COLD, 10 EARTH MASS PLANET AND ITS HOST STAR', Astrophysical Journal, vol. 741, no. 1, 22, pp. -. https://doi.org/10.1088/0004-637X/741/1/22

TY - JOUR

T1 - DISCOVERY AND MASS MEASUREMENTS OF A COLD, 10 EARTH MASS PLANET AND ITS HOST STAR

AU - Muraki, Y.

AU - Han, C.

AU - Bennett, D. P.

AU - Suzuki, D.

AU - Monard, L. A. G.

AU - Street, R.

AU - Jorgensen, U. G.

AU - Kundurthy, P.

AU - Skowron, J.

AU - Becker, A. C.

AU - Albrow, M. D.

AU - Fouque, P.

AU - Heyrovsky, D.

AU - Barry, R. K.

AU - Beaulieu, J. -P.

AU - Wellnitz, D. D.

AU - Bond, I. A.

AU - Sumi, T.

AU - Dong, S.

AU - Gaudi, B. S.

AU - Bramich, M.

AU - Dominik, M.

AU - Abe, F.

AU - Botzler, C. S.

AU - Freeman, M.

AU - Fukui, A.

AU - Furusawa, K.

AU - Hayashi, F.

AU - Hearnshaw, J. B.

AU - Hosaka, S.

AU - Itow, Y.

AU - Kamiya, K.

AU - Korpela, A. V.

AU - Kilmartin, P. M.

AU - Lin, W.

AU - Ling, C. H.

AU - Makita, S.

AU - Masuda, K.

AU - Matsubara, Y.

AU - Miyake, N.

AU - Nishimoto, K.

AU - Ohnishi, K.

AU - Perrott, Y. C.

AU - Rattenbury, N. J.

AU - Saito, To.

AU - Skuljan, L.

AU - Sullivan, D. J.

AU - Sweatman, W. L.

AU - Tristram, P. J.

AU - Wada, K.

AU - Yock, P. C. M.

AU - Christie, G. W.

AU - DePoy, D. L.

AU - Gorbikov, E.

AU - Gould, A.

AU - Kaspi, S.

AU - Lee, C. -U.

AU - Mallia, F.

AU - Maoz, D.

AU - McCormick, J.

AU - Moorhouse, D.

AU - Natusch, T.

AU - Park, B. -G.

AU - Pogge, R. W.

AU - Polishook, D.

AU - Shporer, A.

AU - Thornley, G.

AU - Yee, J. C.

AU - Allan, A.

AU - Browne, P.

AU - Horne, K.

AU - Kains, N.

AU - Snodgrass, C.

AU - Steele, I.

AU - Tsapras, Y.

AU - Batista, V.

AU - Bennett, C. S.

AU - Brillant, S.

AU - Caldwell, J. A. R.

AU - Cassan, A.

AU - Cole, A.

AU - Corrales, R.

AU - Coutures, Ch

AU - Dieters, S.

AU - Prester, D. Dominis

AU - Donatowicz, J.

AU - Greenhill, J.

AU - Kubas, D.

AU - Marquette, J. -B.

AU - Martin, R.

AU - Menzies, J.

AU - Sahu, K. C.

AU - Waldman, I.

AU - Williams, A.

AU - Zub, M.

AU - Bourhrous, H.

AU - Matsuoka, Y.

AU - Nagayama, T.

AU - Oi, N.

AU - Randriamanakoto, Z.

AU - Bozza, V.

AU - Burgdorf, M. J.

AU - Calchi Novati, S.

AU - Dreizler, S.

AU - Finet, F.

AU - Glitrup, M.

AU - Harpsoe, K.

AU - Hinse, T. C.

AU - Hundertmark, M.

AU - Liebig, C.

AU - Maier, G.

AU - Mancini, L.

AU - Mathiasen, M.

AU - Rahvar, S.

AU - Ricci, D.

AU - Scarpetta, G.

AU - Skottfelt, J.

AU - Surdej, J.

AU - Southworth, J.

AU - Wambsganss, J.

AU - Zimmer, F.

AU - Udalski, A.

AU - Poleski, R.

AU - Wyrzykowski, L.

AU - Ulaczyk, K.

AU - Szymanski, M. K.

AU - Kubiak, M.

AU - Pietrzynski, G.

AU - Soszynski, I.

PY - 2011/11/1

Y1 - 2011/11/1

N2 - We present the discovery and mass measurement of the cold, low-mass planet MOA-2009-BLG-266Lb, performed with the gravitational microlensing method. This planet has a mass of m(p) = 10.4 +/- 1.7 M-circle plus and orbits a star of mass M-star = 0.56 +/- 0.09 M-circle dot at a semimajor axis of a = 3.2(-0.5)(+1.9) AU and an orbital period of P = 7.6(-1.5)(+7.7) yrs. The planet and host star mass measurements are enabled by the measurement of the microlensing parallax effect, which is seen primarily in the light curve distortion due to the orbital motion of the Earth. But the analysis also demonstrates the capability to measure the microlensing parallax with the Deep Impact (or EPOXI) spacecraft in a heliocentric orbit. The planet mass and orbital distance are similar to predictions for the critical core mass needed to accrete a substantial gaseous envelope, and thus may indicate that this planet is a "failed" gas giant. This and future microlensing detections will test planet formation theory predictions regarding the prevalence and masses of such planets.

AB - We present the discovery and mass measurement of the cold, low-mass planet MOA-2009-BLG-266Lb, performed with the gravitational microlensing method. This planet has a mass of m(p) = 10.4 +/- 1.7 M-circle plus and orbits a star of mass M-star = 0.56 +/- 0.09 M-circle dot at a semimajor axis of a = 3.2(-0.5)(+1.9) AU and an orbital period of P = 7.6(-1.5)(+7.7) yrs. The planet and host star mass measurements are enabled by the measurement of the microlensing parallax effect, which is seen primarily in the light curve distortion due to the orbital motion of the Earth. But the analysis also demonstrates the capability to measure the microlensing parallax with the Deep Impact (or EPOXI) spacecraft in a heliocentric orbit. The planet mass and orbital distance are similar to predictions for the critical core mass needed to accrete a substantial gaseous envelope, and thus may indicate that this planet is a "failed" gas giant. This and future microlensing detections will test planet formation theory predictions regarding the prevalence and masses of such planets.

KW - gravitational lensing: micro

KW - planetary systems

KW - MAGNIFICATION MICROLENSING EVENTS

KW - GRAVITATIONAL LENSING EXPERIMENT

KW - STELLAR ATMOSPHERE MODELS

KW - SNOW LINE

KW - EXTRASOLAR PLANETS

KW - GALACTIC BULGE

KW - SUPER-EARTHS

KW - JUPITER/SATURN ANALOG

KW - DETERMINISTIC MODEL

KW - CORE ACCRETION

U2 - 10.1088/0004-637X/741/1/22

DO - 10.1088/0004-637X/741/1/22

M3 - Article

SN - 0004-637X

VL - 741

SP - -

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1

M1 - 22

ER -

DISCOVERY AND MASS MEASUREMENTS OF A COLD, 10 EARTH MASS PLANET AND ITS HOST STAR

Abstract

Keywords

Access to Document

Fingerprint

Projects

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

Cite this