The 2:1 resonant exoplanetary system orbiting HD 73526

C.G. Tinney; R.P. Butler; G.W. Marcy; H.R.A. Jones; G. Laughlin; B.D. Carter; J. Bailey; S. O'Toole

The 2:1 resonant exoplanetary system orbiting HD 73526

C.G. Tinney
, R.P. Butler
, G.W. Marcy
, H.R.A. Jones
, G. Laughlin
, B.D. Carter
, J. Bailey
, S. O'Toole

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

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Abstract

We report the detection of a second exoplanet orbiting the G6 V dwarf HD 73526. This second planet has an orbital period of 377 days, putting it in a 2:1 resonance with the previously known exoplanet, the orbital period for which is updated to 188 days. Dynamical modeling of the combined system allows solution for a self-consistent set of orbital elements for both components. HD 73526 is the fourth exoplanetary system (of a total of 18 systems with two or more components currently known) to have components detected in 2:1 resonance. Finding such a large fraction of multiple planets (more than 20%) in 2:1 resonance strongly suggests that orbitalmigration, halted by stabilization in a trapping resonance, plays an important role in the evolution of exoplanets in multiple planet systems.

Original language	English
Pages (from-to)	594-599
Journal	The Astrophysical Journal
Volume	647
Publication status	Published - 2006

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title = "The 2:1 resonant exoplanetary system orbiting HD 73526",

abstract = "We report the detection of a second exoplanet orbiting the G6 V dwarf HD 73526. This second planet has an orbital period of 377 days, putting it in a 2:1 resonance with the previously known exoplanet, the orbital period for which is updated to 188 days. Dynamical modeling of the combined system allows solution for a self-consistent set of orbital elements for both components. HD 73526 is the fourth exoplanetary system (of a total of 18 systems with two or more components currently known) to have components detected in 2:1 resonance. Finding such a large fraction of multiple planets (more than 20\%) in 2:1 resonance strongly suggests that orbitalmigration, halted by stabilization in a trapping resonance, plays an important role in the evolution of exoplanets in multiple planet systems.",

author = "C.G. Tinney and R.P. Butler and G.W. Marcy and H.R.A. Jones and G. Laughlin and B.D. Carter and J. Bailey and S. O'Toole",

note = "Original article can be found at: http://www.journals.uchicago.edu/ApJ/--Copyright American Astronomical Society",

year = "2006",

language = "English",

volume = "647",

pages = "594--599",

journal = "The Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

}

TY - JOUR

T1 - The 2:1 resonant exoplanetary system orbiting HD 73526

AU - Tinney, C.G.

AU - Butler, R.P.

AU - Marcy, G.W.

AU - Jones, H.R.A.

AU - Laughlin, G.

AU - Carter, B.D.

AU - Bailey, J.

AU - O'Toole, S.

N1 - Original article can be found at: http://www.journals.uchicago.edu/ApJ/--Copyright American Astronomical Society

PY - 2006

Y1 - 2006

N2 - We report the detection of a second exoplanet orbiting the G6 V dwarf HD 73526. This second planet has an orbital period of 377 days, putting it in a 2:1 resonance with the previously known exoplanet, the orbital period for which is updated to 188 days. Dynamical modeling of the combined system allows solution for a self-consistent set of orbital elements for both components. HD 73526 is the fourth exoplanetary system (of a total of 18 systems with two or more components currently known) to have components detected in 2:1 resonance. Finding such a large fraction of multiple planets (more than 20%) in 2:1 resonance strongly suggests that orbitalmigration, halted by stabilization in a trapping resonance, plays an important role in the evolution of exoplanets in multiple planet systems.

AB - We report the detection of a second exoplanet orbiting the G6 V dwarf HD 73526. This second planet has an orbital period of 377 days, putting it in a 2:1 resonance with the previously known exoplanet, the orbital period for which is updated to 188 days. Dynamical modeling of the combined system allows solution for a self-consistent set of orbital elements for both components. HD 73526 is the fourth exoplanetary system (of a total of 18 systems with two or more components currently known) to have components detected in 2:1 resonance. Finding such a large fraction of multiple planets (more than 20%) in 2:1 resonance strongly suggests that orbitalmigration, halted by stabilization in a trapping resonance, plays an important role in the evolution of exoplanets in multiple planet systems.

M3 - Article

SN - 0004-637X

VL - 647

SP - 594

EP - 599

JO - The Astrophysical Journal

JF - The Astrophysical Journal

ER -

The 2:1 resonant exoplanetary system orbiting HD 73526

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