Stellar spin-orbit misalignment in a multiplanet system

Daniel Huber; Joshua A. Carter; Mauro Barbieri; Andrea Miglio; Katherine M. Deck; Daniel C. Fabycky; Benjamin T. Montet; Lars A. Buchhave; William J. Chaplin; Saskia Hekker; Josefine Montalbán; Roberto Sanchis-Ojeda; Sarbani Basu; Timothy R. Bedding; Tiago L. Campante; Jørgen Christensen-Dalsgaard; Yvonne P. Elsworth; Dennis Stello; Torben Arentoft; Eric B. Ford; Ronald L. Gilliland; Rasmus Handberg; Andrew W. Howard; Howard Isaacson; John Asher Johnson; Christoffer Karoff; Steven D. Kawaler; Hans Kjeldsen; David W. Latham; Mikkel N. Lund; Mia Lundkvist; Geoffrey W. Marcy; Travis S. Metcalfe; Victor Silva Aguirre; Joshua N. Winn

doi:10.1126/science.1242066

Stellar spin-orbit misalignment in a multiplanet system

Daniel Huber, Joshua A. Carter, Mauro Barbieri, Andrea Miglio, Katherine M. Deck, Daniel C. Fabycky, Benjamin T. Montet, Lars A. Buchhave, William J. Chaplin, Saskia Hekker, Josefine Montalbán, Roberto Sanchis-Ojeda, Sarbani Basu, Timothy R. Bedding, Tiago L. Campante, Jørgen Christensen-Dalsgaard, Yvonne P. Elsworth, Dennis Stello, Torben Arentoft, Eric B. FordRonald L. Gilliland, Rasmus Handberg, Andrew W. Howard, Howard Isaacson, John Asher Johnson, Christoffer Karoff, Steven D. Kawaler, Hans Kjeldsen, David W. Latham, Mikkel N. Lund, Mia Lundkvist, Geoffrey W. Marcy, Travis S. Metcalfe, Victor Silva Aguirre, Joshua N. Winn

Astrophysics and Planetary Science

189 Citations (Scopus)

Abstract

Stars hosting hot Jupiters are often observed to have high obliquities, whereas stars with multiple coplanar planets have been seen to have low obliquities. This has been interpreted as evidence that hot-Jupiter formation is linked to dynamical disruption, as opposed to planet migration through a protoplanetary disk. We used asteroseismology to measure a large obliquity for Kepler-56, a red giant star hosting two transiting coplanar planets. These observations show that spin-orbit misalignments are not confined to hot-Jupiter systems. Misalignments in a broader class of systems had been predicted as a consequence of torques from wide-orbiting companions, and indeed radial velocity measurements revealed a third companion in a wide orbit in the Kepler-56 system.

Original language	English
Journal	Science
Volume	342
Issue number	6156
Pages (from-to)	331-334
Number of pages	4
ISSN	0036-8075
DOIs	https://doi.org/10.1126/science.1242066
Publication status	Published - 18 Oct 2013

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Huber, D., Carter, J. A., Barbieri, M., Miglio, A., Deck, K. M., Fabycky, D. C., Montet, B. T., Buchhave, L. A., Chaplin, W. J., Hekker, S., Montalbán, J., Sanchis-Ojeda, R., Basu, S., Bedding, T. R., Campante, T. L., Christensen-Dalsgaard, J., Elsworth, Y. P., Stello, D., Arentoft, T., ... Winn, J. N. (2013). Stellar spin-orbit misalignment in a multiplanet system. Science, 342(6156), 331-334. https://doi.org/10.1126/science.1242066

Huber, D, Carter, JA, Barbieri, M, Miglio, A, Deck, KM, Fabycky, DC, Montet, BT, Buchhave, LA, Chaplin, WJ, Hekker, S, Montalbán, J, Sanchis-Ojeda, R, Basu, S, Bedding, TR, Campante, TL, Christensen-Dalsgaard, J, Elsworth, YP, Stello, D, Arentoft, T, Ford, EB, Gilliland, RL, Handberg, R, Howard, AW, Isaacson, H, Johnson, JA, Karoff, C, Kawaler, SD, Kjeldsen, H, Latham, DW, Lund, MN, Lundkvist, M, Marcy, GW, Metcalfe, TS, Aguirre, VS & Winn, JN 2013, 'Stellar spin-orbit misalignment in a multiplanet system', Science, vol. 342, no. 6156, pp. 331-334. https://doi.org/10.1126/science.1242066

@article{b3ee93673a614339917631a8d4d96dcd,

title = "Stellar spin-orbit misalignment in a multiplanet system",

abstract = "Stars hosting hot Jupiters are often observed to have high obliquities, whereas stars with multiple coplanar planets have been seen to have low obliquities. This has been interpreted as evidence that hot-Jupiter formation is linked to dynamical disruption, as opposed to planet migration through a protoplanetary disk. We used asteroseismology to measure a large obliquity for Kepler-56, a red giant star hosting two transiting coplanar planets. These observations show that spin-orbit misalignments are not confined to hot-Jupiter systems. Misalignments in a broader class of systems had been predicted as a consequence of torques from wide-orbiting companions, and indeed radial velocity measurements revealed a third companion in a wide orbit in the Kepler-56 system.",

author = "Daniel Huber and Carter, {Joshua A.} and Mauro Barbieri and Andrea Miglio and Deck, {Katherine M.} and Fabycky, {Daniel C.} and Montet, {Benjamin T.} and Buchhave, {Lars A.} and Chaplin, {William J.} and Saskia Hekker and Josefine Montalb{\'a}n and Roberto Sanchis-Ojeda and Sarbani Basu and Bedding, {Timothy R.} and Campante, {Tiago L.} and J{\o}rgen Christensen-Dalsgaard and Elsworth, {Yvonne P.} and Dennis Stello and Torben Arentoft and Ford, {Eric B.} and Gilliland, {Ronald L.} and Rasmus Handberg and Howard, {Andrew W.} and Howard Isaacson and Johnson, {John Asher} and Christoffer Karoff and Kawaler, {Steven D.} and Hans Kjeldsen and Latham, {David W.} and Lund, {Mikkel N.} and Mia Lundkvist and Marcy, {Geoffrey W.} and Metcalfe, {Travis S.} and Aguirre, {Victor Silva} and Winn, {Joshua N.}",

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doi = "10.1126/science.1242066",

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T1 - Stellar spin-orbit misalignment in a multiplanet system

AU - Huber, Daniel

AU - Carter, Joshua A.

AU - Barbieri, Mauro

AU - Miglio, Andrea

AU - Deck, Katherine M.

AU - Fabycky, Daniel C.

AU - Montet, Benjamin T.

AU - Buchhave, Lars A.

AU - Chaplin, William J.

AU - Hekker, Saskia

AU - Montalbán, Josefine

AU - Sanchis-Ojeda, Roberto

AU - Basu, Sarbani

AU - Bedding, Timothy R.

AU - Campante, Tiago L.

AU - Christensen-Dalsgaard, Jørgen

AU - Elsworth, Yvonne P.

AU - Stello, Dennis

AU - Arentoft, Torben

AU - Ford, Eric B.

AU - Gilliland, Ronald L.

AU - Handberg, Rasmus

AU - Howard, Andrew W.

AU - Isaacson, Howard

AU - Johnson, John Asher

AU - Karoff, Christoffer

AU - Kawaler, Steven D.

AU - Kjeldsen, Hans

AU - Latham, David W.

AU - Lund, Mikkel N.

AU - Lundkvist, Mia

AU - Marcy, Geoffrey W.

AU - Metcalfe, Travis S.

AU - Aguirre, Victor Silva

AU - Winn, Joshua N.

PY - 2013/10/18

Y1 - 2013/10/18

N2 - Stars hosting hot Jupiters are often observed to have high obliquities, whereas stars with multiple coplanar planets have been seen to have low obliquities. This has been interpreted as evidence that hot-Jupiter formation is linked to dynamical disruption, as opposed to planet migration through a protoplanetary disk. We used asteroseismology to measure a large obliquity for Kepler-56, a red giant star hosting two transiting coplanar planets. These observations show that spin-orbit misalignments are not confined to hot-Jupiter systems. Misalignments in a broader class of systems had been predicted as a consequence of torques from wide-orbiting companions, and indeed radial velocity measurements revealed a third companion in a wide orbit in the Kepler-56 system.

AB - Stars hosting hot Jupiters are often observed to have high obliquities, whereas stars with multiple coplanar planets have been seen to have low obliquities. This has been interpreted as evidence that hot-Jupiter formation is linked to dynamical disruption, as opposed to planet migration through a protoplanetary disk. We used asteroseismology to measure a large obliquity for Kepler-56, a red giant star hosting two transiting coplanar planets. These observations show that spin-orbit misalignments are not confined to hot-Jupiter systems. Misalignments in a broader class of systems had been predicted as a consequence of torques from wide-orbiting companions, and indeed radial velocity measurements revealed a third companion in a wide orbit in the Kepler-56 system.

U2 - 10.1126/science.1242066

DO - 10.1126/science.1242066

M3 - Journal article

C2 - 24136961

SN - 0036-8075

VL - 342

SP - 331

EP - 334

JO - Science

JF - Science

IS - 6156

ER -

Stellar spin-orbit misalignment in a multiplanet system

Abstract

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