We present evidence that the WASP-14 exoplanetary system has misaligned orbital and stellarrotational axes, with an angle A = -33.1° ± 7.4° 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 MJup) 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.
|Original language||English (US)|
|Number of pages||8|
|Journal||Publications of the Astronomical Society of the Pacific|
|State||Published - Oct 2009|
All Science Journal Classification (ASJC) codes
- Astronomy and Astrophysics
- Space and Planetary Science