Journal
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
Volume 121, Issue 884, Pages 1104-1111Publisher
UNIV CHICAGO PRESS
DOI: 10.1086/644604
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Funding
- NSF [AST-0702821]
- NASA [NNX09AD36G, NNX09AB33G, NNG05GK92G]
- Townes Postdoctoral Fellowship at the UC Berkeley Space Sciences Laboratory
- NASA [120925, NNX09AB33G] Funding Source: Federal RePORTER
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We present evidence that the WASP-14 exoplanetary system has misaligned orbital and stellar-rotational axes, with an angle lambda = -33.1 degrees +/- 7.4 degrees between their sky projections. The evidence is based on spectroscopic observations of the Rossiter-McLaughlin effect as well as new photometric observations. WASP-14 is now the third system known to have a significant spin-orbit misalignment, and all three systems have super-Jupiter planets (M(P) > 3 M(Jup)) and eccentric orbits. This finding suggests that the migration and subsequent orbital evolution of massive, eccentric exoplanets is somehow different from that of less massive close-in Jupiters, the majority of which have well-aligned orbits.
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