Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011ess.....2.0601w&link_type=abstract
American Astronomical Society, ESS meeting #2, #6.01
Astronomy and Astrophysics
Astronomy
Scientific paper
In the Solar system, the planets follow orbits that are aligned with
the Sun's equatorial plane to within about 7 degrees. Exoplanets show
a wider variety of orbits, including some that are highly tilted and
even retrograde with respect to the rotation of the host star. This
suggests that planet migration involves few-body gravitational
interactions, which frequently disrupt the initial coplanarity of
planetary systems. Last year a possible pattern emerged: hot stars
(T>6250K) with hot Jupiters have high obliquities. I will present
stronger evidence for this pattern, based on more than a dozen new
observations of the Rossiter-McLaughlin effect. I will also discuss
the status of proposed explanations for this pattern, including the
possibility that the low obliquities of cool stars are a consequence
of the stronger tidal dissipation within their convective
envelopes. Finally, I will present new observations of spin-orbit
alignment for selected Kepler systems, which are qualitatively
different than the systems which have been examined to date.
No associations
LandOfFree
New Observations of Spin-Orbit Alignment: Hot Stars, Cool Stars, Kepler Stars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with New Observations of Spin-Orbit Alignment: Hot Stars, Cool Stars, Kepler Stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and New Observations of Spin-Orbit Alignment: Hot Stars, Cool Stars, Kepler Stars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-832614