Physics
Scientific paper
Apr 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007p%26ss...55..643c&link_type=abstract
Planetary and Space Science, Volume 55, Issue 5, p. 643-650.
Physics
16
Scientific paper
The planet OGLE-TR-56b is the extrasolar giant planet closest to its host star. This planet and its star exchange extreme tidal forces. This leads to a reduction of the planetary orbit and a spin-up of the stellar rotation. The tidal migration rate depends crucially on the ratio of the tidal dissipation factor Q and the stellar love number kof the star, which is only poorly known and estimates range within 5×10<(Q/k)<10. For values greater than Q/k>1.5×10no observable influence by tidal forces on the planet's orbit within the lifetime for the star can be found. A lower limit for the possible values of the parameter Q/kfor the G-type star OGLE-TR-56 was found by studying the evolution of possible tidal interaction into the future and in the past. This study demonstrates that on the basis of conservative model assumptions, a considerable but unrealistic spin-up of the star can be expected if Q/k<2×10, which is not in agreement with observed stellar rotation periods. From a statistical analysis based on a Monte-Carlo tidal evolution simulation, the Q/k parameter can be constrained to the range 2×10
Carone Ludmila
Pätzold Martin
No associations
LandOfFree
Constraints on the tidal dissipation factor of a main sequence star: The case of OGLE-TR-56b 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 Constraints on the tidal dissipation factor of a main sequence star: The case of OGLE-TR-56b, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Constraints on the tidal dissipation factor of a main sequence star: The case of OGLE-TR-56b will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1360186