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|Abstract:||We report the measurement of a spin-orbit misalignment for WASP-79b, a recently discovered, bloated hot Jupiter from the Wide Angle Search for Planets (WASP) survey. Data were obtained using the CYCLOPS2 optical-fiber bundle and its simultaneous calibration system feeding the UCLES spectrograph on the Anglo-Australian Telescope. We have used the Rossiter–McLaughlin effect to determine the sky-projected spin-orbit angle to be λ =− 106 +19 − 13 ◦ . This result indicates a significant misalignment between the spin axis of the host star and the orbital plane of the planet—the planet being in a nearly polar orbit. WASP-79 is consistent with other stars that have T eff > 6250 K and host hot Jupiters in spin-orbit misalignment.|
|Electronic Publication Date:||14-Aug-2013|
|Citation:||Addison, BC, Tinney, CG, Wright, DJ, Bayliss, D, Zhou, G, Hartman, JD, Bakos, GÁ, Schmidt, B. (2013). A Nearly Polar Orbit for the Extrasolar Hot Jupiter WASP-79b. \apj, 774 (L9 - L9. doi:10.1088/2041-8205/774/1/L9|
|Type of Material:||Journal Article|
|Journal/Proceeding Title:||Astrophysical Journal Letters|
|Version:||Final published version. This is an open access article.|
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