HD 181068: a red giant in a triply eclipsing compact hierarchical triple system

A. Derekas; L. L. Kiss; T. Borkovits; D. Huber; H. Lehmann; J. Southworth; T. R. Bedding; D. Balam; M. Hartmann; M. Hrudkova; M. J. Ireland; J. Kovács; Gy Mezö; A. Moór; E. Niemczura; G. E. Sarty; Gy M. Szabó; R. Szabó; J. H. Telting; A. Tkachenko; K. Uytterhoeven; J. M. Benkö; S. T. Bryson; V. Maestro; A. E. Simon; D. Stello; G. Schaefer; C. Aerts; T. A. Ten Brummelaar; P. De Cat; H. A. McAlister; C. MacEroni; A. Mérand; M. Still; J. Sturmann; L. Sturmann; N. Turner; P. G. Tuthill; J. Christensen-Dalsgaard; R. L. Gilliland; H. Kjeldsen; E. V. Quintana; P. Tenenbaum; J. D. Twicken

doi:10.1126/science.1201762

HD 181068: a red giant in a triply eclipsing compact hierarchical triple system

A. Derekas^*, L. L. Kiss, T. Borkovits, D. Huber, H. Lehmann, J. Southworth, T. R. Bedding, D. Balam, M. Hartmann, M. Hrudkova, M. J. Ireland, J. Kovács, Gy Mezö, A. Moór, E. Niemczura, G. E. Sarty, Gy M. Szabó, R. Szabó, J. H. Telting, A. TkachenkoK. Uytterhoeven, J. M. Benkö, S. T. Bryson, V. Maestro, A. E. Simon, D. Stello, G. Schaefer, C. Aerts, T. A. Ten Brummelaar, P. De Cat, H. A. McAlister, C. MacEroni, A. Mérand, M. Still, J. Sturmann, L. Sturmann, N. Turner, P. G. Tuthill, J. Christensen-Dalsgaard, R. L. Gilliland, H. Kjeldsen, E. V. Quintana, P. Tenenbaum, J. D. Twicken

^*Corresponding author for this work

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

89 Citations (Scopus)

Abstract

Hierarchical triple systems comprise a close binary and a more distant component. They are important for testing theories of star formation and of stellar evolution in the presence of nearby companions. We obtained 218 days of Kepler photometry of HD 181068 (magnitude of 7.1), supplemented by ground-based spectroscopy and interferometry, which show it to be a hierarchical triple with two types of mutual eclipses. The primary is a red giant that is in a 45-day orbit with a pair of red dwarfs in a close 0.9-day orbit. The red giant shows evidence for tidally induced oscillations that are driven by the orbital motion of the close pair. HD 181068 is an ideal target for studies of dynamical evolution and testing tidal friction theories in hierarchical triple systems.

Original language	English
Pages (from-to)	216-218
Number of pages	3
Journal	Science
Volume	332
Issue number	6026
DOIs	https://doi.org/10.1126/science.1201762
Publication status	Published - 8 Apr 2011
Externally published	Yes

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Derekas, A., Kiss, L. L., Borkovits, T., Huber, D., Lehmann, H., Southworth, J., Bedding, T. R., Balam, D., Hartmann, M., Hrudkova, M., Ireland, M. J., Kovács, J., Mezö, G., Moór, A., Niemczura, E., Sarty, G. E., Szabó, G. M., Szabó, R., Telting, J. H., ... Twicken, J. D. (2011). HD 181068: a red giant in a triply eclipsing compact hierarchical triple system. Science, 332(6026), 216-218. https://doi.org/10.1126/science.1201762

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title = "HD 181068: a red giant in a triply eclipsing compact hierarchical triple system",

abstract = "Hierarchical triple systems comprise a close binary and a more distant component. They are important for testing theories of star formation and of stellar evolution in the presence of nearby companions. We obtained 218 days of Kepler photometry of HD 181068 (magnitude of 7.1), supplemented by ground-based spectroscopy and interferometry, which show it to be a hierarchical triple with two types of mutual eclipses. The primary is a red giant that is in a 45-day orbit with a pair of red dwarfs in a close 0.9-day orbit. The red giant shows evidence for tidally induced oscillations that are driven by the orbital motion of the close pair. HD 181068 is an ideal target for studies of dynamical evolution and testing tidal friction theories in hierarchical triple systems.",

author = "A. Derekas and Kiss, {L. L.} and T. Borkovits and D. Huber and H. Lehmann and J. Southworth and Bedding, {T. R.} and D. Balam and M. Hartmann and M. Hrudkova and Ireland, {M. J.} and J. Kov{\'a}cs and Gy Mez{\"o} and A. Mo{\'o}r and E. Niemczura and Sarty, {G. E.} and Szab{\'o}, {Gy M.} and R. Szab{\'o} and Telting, {J. H.} and A. Tkachenko and K. Uytterhoeven and Benk{\"o}, {J. M.} and Bryson, {S. T.} and V. Maestro and Simon, {A. E.} and D. Stello and G. Schaefer and C. Aerts and {Ten Brummelaar}, {T. A.} and {De Cat}, P. and McAlister, {H. A.} and C. MacEroni and A. M{\'e}rand and M. Still and J. Sturmann and L. Sturmann and N. Turner and Tuthill, {P. G.} and J. Christensen-Dalsgaard and Gilliland, {R. L.} and H. Kjeldsen and Quintana, {E. V.} and P. Tenenbaum and Twicken, {J. D.}",

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Derekas, A, Kiss, LL, Borkovits, T, Huber, D, Lehmann, H, Southworth, J, Bedding, TR, Balam, D, Hartmann, M, Hrudkova, M, Ireland, MJ, Kovács, J, Mezö, G, Moór, A, Niemczura, E, Sarty, GE, Szabó, GM, Szabó, R, Telting, JH, Tkachenko, A, Uytterhoeven, K, Benkö, JM, Bryson, ST, Maestro, V, Simon, AE, Stello, D, Schaefer, G, Aerts, C, Ten Brummelaar, TA, De Cat, P, McAlister, HA, MacEroni, C, Mérand, A, Still, M, Sturmann, J, Sturmann, L, Turner, N, Tuthill, PG, Christensen-Dalsgaard, J, Gilliland, RL, Kjeldsen, H, Quintana, EV, Tenenbaum, P & Twicken, JD 2011, 'HD 181068: a red giant in a triply eclipsing compact hierarchical triple system', Science, vol. 332, no. 6026, pp. 216-218. https://doi.org/10.1126/science.1201762

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T1 - HD 181068

T2 - a red giant in a triply eclipsing compact hierarchical triple system

AU - Derekas, A.

AU - Kiss, L. L.

AU - Borkovits, T.

AU - Huber, D.

AU - Lehmann, H.

AU - Southworth, J.

AU - Bedding, T. R.

AU - Balam, D.

AU - Hartmann, M.

AU - Hrudkova, M.

AU - Ireland, M. J.

AU - Kovács, J.

AU - Mezö, Gy

AU - Moór, A.

AU - Niemczura, E.

AU - Sarty, G. E.

AU - Szabó, Gy M.

AU - Szabó, R.

AU - Telting, J. H.

AU - Tkachenko, A.

AU - Uytterhoeven, K.

AU - Benkö, J. M.

AU - Bryson, S. T.

AU - Maestro, V.

AU - Simon, A. E.

AU - Stello, D.

AU - Schaefer, G.

AU - Aerts, C.

AU - Ten Brummelaar, T. A.

AU - De Cat, P.

AU - McAlister, H. A.

AU - MacEroni, C.

AU - Mérand, A.

AU - Still, M.

AU - Sturmann, J.

AU - Sturmann, L.

AU - Turner, N.

AU - Tuthill, P. G.

AU - Christensen-Dalsgaard, J.

AU - Gilliland, R. L.

AU - Kjeldsen, H.

AU - Quintana, E. V.

AU - Tenenbaum, P.

AU - Twicken, J. D.

PY - 2011/4/8

Y1 - 2011/4/8

N2 - Hierarchical triple systems comprise a close binary and a more distant component. They are important for testing theories of star formation and of stellar evolution in the presence of nearby companions. We obtained 218 days of Kepler photometry of HD 181068 (magnitude of 7.1), supplemented by ground-based spectroscopy and interferometry, which show it to be a hierarchical triple with two types of mutual eclipses. The primary is a red giant that is in a 45-day orbit with a pair of red dwarfs in a close 0.9-day orbit. The red giant shows evidence for tidally induced oscillations that are driven by the orbital motion of the close pair. HD 181068 is an ideal target for studies of dynamical evolution and testing tidal friction theories in hierarchical triple systems.

AB - Hierarchical triple systems comprise a close binary and a more distant component. They are important for testing theories of star formation and of stellar evolution in the presence of nearby companions. We obtained 218 days of Kepler photometry of HD 181068 (magnitude of 7.1), supplemented by ground-based spectroscopy and interferometry, which show it to be a hierarchical triple with two types of mutual eclipses. The primary is a red giant that is in a 45-day orbit with a pair of red dwarfs in a close 0.9-day orbit. The red giant shows evidence for tidally induced oscillations that are driven by the orbital motion of the close pair. HD 181068 is an ideal target for studies of dynamical evolution and testing tidal friction theories in hierarchical triple systems.

UR - http://www.scopus.com/inward/record.url?scp=79953814650&partnerID=8YFLogxK

U2 - 10.1126/science.1201762

DO - 10.1126/science.1201762

M3 - Article

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AN - SCOPUS:79953814650

SN - 0036-8075

VL - 332

SP - 216

EP - 218

JO - Science

JF - Science

IS - 6026

ER -

HD 181068: a red giant in a triply eclipsing compact hierarchical triple system

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