Kepler-36: A Pair of Planets with Neighboring Orbits and Dissimilar Densities

J.A. Carter; E. Agol; W.J. Chaplin; S. Basu; T.R. Bedding; L.A. Buchhave; J. Christensen-Dalsgaard; K.M. Deck; Y. Elsworth; D.C. Fabrycky; E.B. Ford; J.J. Fortney; Steven Hale; R. Handberg; S. Hekker; M.~J. Holman; D. Huber; C. Karoff; S.~D. Kawaler; H. Kjeldsen; J.~J. Lissauer; E.~D. Lopez; M.~N. Lund; M. Lundkvist; T. S. Metcalfe; A. Miglio; L. A. Rogers; D. Stello; W.~J. Borucki; S. Bryson; J.~L. Christiansen; W.~D. Cochran; J.~C. Geary; R.~L. Gilliland; M.~R. Haas; J. Hall; A. W. Howard; J.~M. Jenkins; T. Klaus; D.~G. Koch; D.~W. Latham; P.~J. MacQueen; D. Sasselov; J.~H. Steffen; J.~D. Twicken; J.~N. Winn

doi:10.1126/science.1223269

Kepler-36: A Pair of Planets with Neighboring Orbits and Dissimilar Densities

J.A. Carter, E. Agol, W.J. Chaplin, S. Basu, T.R. Bedding, L.A. Buchhave, J. Christensen-Dalsgaard, K.M. Deck, Y. Elsworth, D.C. Fabrycky, E.B. Ford, J.J. Fortney, Steven Hale, R. Handberg, S. Hekker, M.~J. Holman, D. Huber, C. Karoff, S.~D. Kawaler, H. KjeldsenJ.~J. Lissauer, E.~D. Lopez, M.~N. Lund, M. Lundkvist, T. S. Metcalfe, A. Miglio, L. A. Rogers, D. Stello, W.~J. Borucki, S. Bryson, J.~L. Christiansen, W.~D. Cochran, J.~C. Geary, R.~L. Gilliland, M.~R. Haas, J. Hall, A. W. Howard, J.~M. Jenkins, T. Klaus, D.~G. Koch, D.~W. Latham, P.~J. MacQueen, D. Sasselov, J.~H. Steffen, J.~D. Twicken, J.~N. Winn

Physics and Astronomy

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

263 Citations (Scopus)

Abstract

In the solar system, the planets’ compositions vary with orbital distance, with rocky planets in close orbits and lower-density gas giants in wider orbits. The detection of close-in giant planets around other stars was the first clue that this pattern is not universal and that planets’ orbits can change substantially after their formation. Here, we report another violation of the orbit-composition pattern: two planets orbiting the same star with orbital distances differing by only 10% and densities differing by a factor of 8. One planet is likely a rocky “super-Earth,” whereas the other is more akin to Neptune. These planets are 20 times more closely spaced and have a larger density contrast than any adjacent pair of planets in the solar system.

Original language	English
Pages (from-to)	556-559
Journal	Science
Volume	337
DOIs	https://doi.org/10.1126/science.1223269
Publication status	Published - 1 Aug 2012

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10.1126/science.1223269

Sounding the Stars---The Birmingham and Queen Mary Seismology Programme
Elsworth, Y., Chaplin, B. & Miglio, A.
SCIENCE & TECHNOLOGY FACILITIES COUNCIL
1/04/12 → 31/03/15
Project: Research Councils

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Carter, J. A., Agol, E., Chaplin, W. J., Basu, S., Bedding, T. R., Buchhave, L. A., Christensen-Dalsgaard, J., Deck, K. M., Elsworth, Y., Fabrycky, D. C., Ford, E. B., Fortney, J. J., Hale, S., Handberg, R., Hekker, S., Holman, M. J., Huber, D., Karoff, C., Kawaler, S. D., ... Winn, J. N. (2012). Kepler-36: A Pair of Planets with Neighboring Orbits and Dissimilar Densities. Science, 337, 556-559. https://doi.org/10.1126/science.1223269

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title = "Kepler-36: A Pair of Planets with Neighboring Orbits and Dissimilar Densities",

abstract = "In the solar system, the planets{\textquoteright} compositions vary with orbital distance, with rocky planets in close orbits and lower-density gas giants in wider orbits. The detection of close-in giant planets around other stars was the first clue that this pattern is not universal and that planets{\textquoteright} orbits can change substantially after their formation. Here, we report another violation of the orbit-composition pattern: two planets orbiting the same star with orbital distances differing by only 10% and densities differing by a factor of 8. One planet is likely a rocky “super-Earth,” whereas the other is more akin to Neptune. These planets are 20 times more closely spaced and have a larger density contrast than any adjacent pair of planets in the solar system.",

author = "J.A. Carter and E. Agol and W.J. Chaplin and S. Basu and T.R. Bedding and L.A. Buchhave and J. Christensen-Dalsgaard and K.M. Deck and Y. Elsworth and D.C. Fabrycky and E.B. Ford and J.J. Fortney and Steven Hale and R. Handberg and S. Hekker and M.~J. Holman and D. Huber and C. Karoff and S.~D. Kawaler and H. Kjeldsen and J.~J. Lissauer and E.~D. Lopez and M.~N. Lund and M. Lundkvist and Metcalfe, {T. S.} and A. Miglio and Rogers, {L. A.} and D. Stello and W.~J. Borucki and S. Bryson and J.~L. Christiansen and W.~D. Cochran and J.~C. Geary and R.~L. Gilliland and M.~R. Haas and J. Hall and Howard, {A. W.} and J.~M. Jenkins and T. Klaus and D.~G. Koch and D.~W. Latham and P.~J. MacQueen and D. Sasselov and J.~H. Steffen and J.~D. Twicken and J.~N. Winn",

year = "2012",

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doi = "10.1126/science.1223269",

language = "English",

volume = "337",

pages = "556--559",

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Carter, JA, Agol, E, Chaplin, WJ, Basu, S, Bedding, TR, Buchhave, LA, Christensen-Dalsgaard, J, Deck, KM, Elsworth, Y, Fabrycky, DC, Ford, EB, Fortney, JJ, Hale, S, Handberg, R, Hekker, S, Holman, MJ, Huber, D, Karoff, C, Kawaler, SD, Kjeldsen, H, Lissauer, JJ, Lopez, ED, Lund, MN, Lundkvist, M, Metcalfe, TS, Miglio, A, Rogers, LA, Stello, D, Borucki, WJ, Bryson, S, Christiansen, JL, Cochran, WD, Geary, JC, Gilliland, RL, Haas, MR, Hall, J, Howard, AW, Jenkins, JM, Klaus, T, Koch, DG, Latham, DW, MacQueen, PJ, Sasselov, D, Steffen, JH, Twicken, JD & Winn, JN 2012, 'Kepler-36: A Pair of Planets with Neighboring Orbits and Dissimilar Densities', Science, vol. 337, pp. 556-559. https://doi.org/10.1126/science.1223269

TY - JOUR

T1 - Kepler-36: A Pair of Planets with Neighboring Orbits and Dissimilar Densities

AU - Carter, J.A.

AU - Agol, E.

AU - Chaplin, W.J.

AU - Basu, S.

AU - Bedding, T.R.

AU - Buchhave, L.A.

AU - Christensen-Dalsgaard, J.

AU - Deck, K.M.

AU - Elsworth, Y.

AU - Fabrycky, D.C.

AU - Ford, E.B.

AU - Fortney, J.J.

AU - Hale, Steven

AU - Handberg, R.

AU - Hekker, S.

AU - Holman, M.~J.

AU - Huber, D.

AU - Karoff, C.

AU - Kawaler, S.~D.

AU - Kjeldsen, H.

AU - Lissauer, J.~J.

AU - Lopez, E.~D.

AU - Lund, M.~N.

AU - Lundkvist, M.

AU - Metcalfe, T. S.

AU - Miglio, A.

AU - Rogers, L. A.

AU - Stello, D.

AU - Borucki, W.~J.

AU - Bryson, S.

AU - Christiansen, J.~L.

AU - Cochran, W.~D.

AU - Geary, J.~C.

AU - Gilliland, R.~L.

AU - Haas, M.~R.

AU - Hall, J.

AU - Howard, A. W.

AU - Jenkins, J.~M.

AU - Klaus, T.

AU - Koch, D.~G.

AU - Latham, D.~W.

AU - MacQueen, P.~J.

AU - Sasselov, D.

AU - Steffen, J.~H.

AU - Twicken, J.~D.

AU - Winn, J.~N.

PY - 2012/8/1

Y1 - 2012/8/1

N2 - In the solar system, the planets’ compositions vary with orbital distance, with rocky planets in close orbits and lower-density gas giants in wider orbits. The detection of close-in giant planets around other stars was the first clue that this pattern is not universal and that planets’ orbits can change substantially after their formation. Here, we report another violation of the orbit-composition pattern: two planets orbiting the same star with orbital distances differing by only 10% and densities differing by a factor of 8. One planet is likely a rocky “super-Earth,” whereas the other is more akin to Neptune. These planets are 20 times more closely spaced and have a larger density contrast than any adjacent pair of planets in the solar system.

AB - In the solar system, the planets’ compositions vary with orbital distance, with rocky planets in close orbits and lower-density gas giants in wider orbits. The detection of close-in giant planets around other stars was the first clue that this pattern is not universal and that planets’ orbits can change substantially after their formation. Here, we report another violation of the orbit-composition pattern: two planets orbiting the same star with orbital distances differing by only 10% and densities differing by a factor of 8. One planet is likely a rocky “super-Earth,” whereas the other is more akin to Neptune. These planets are 20 times more closely spaced and have a larger density contrast than any adjacent pair of planets in the solar system.

U2 - 10.1126/science.1223269

DO - 10.1126/science.1223269

M3 - Article

SN - 1095-9203

VL - 337

SP - 556

EP - 559

JO - Science

JF - Science

ER -

Kepler-36: A Pair of Planets with Neighboring Orbits and Dissimilar Densities

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Sounding the Stars---The Birmingham and Queen Mary Seismology Programme

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