Exploring the Parameter Space of Retrograde Planets in the Secular Hierarchical 3-body Problem

Astronomy and Astrophysics – Astronomy

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Scientific paper

Recent observations using the Rossiter-McLaughlin effect have revealed the existence of Hot Jupiters in highly inclined and even retrograde orbits. At the same time, distant planets have been discovered using direct imaging methods. Motivated by these observations, we explore the possibility of forming retrograde orbits in hierarchical triple configurations with two giant planets, or one giant planet and a brown-dwarf binary companion. We survey a large set of orbital parameters, highlighting the range of initial conditions that allow for the formation of retrograde Hot Jupiters. We use the formalism developed in Naoz et al. 20111, which gives a correct treatment of the secular evolution of hierarchical triple systems to octupole order. With this new formalism, a complete numerical study can be done. Based on our new survey, we show how and when an eccentric planetary or brown-dwarf companion can perturb the inner planet into a retrograde orbit, as long as the mutual inclination is high. Constraints on the outer body can be used to guide future observations.
1Naoz et al. ArXiv e-prints 1107.2414

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Exploring the Parameter Space of Retrograde Planets in the Secular Hierarchical 3-body Problem 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 Exploring the Parameter Space of Retrograde Planets in the Secular Hierarchical 3-body Problem, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exploring the Parameter Space of Retrograde Planets in the Secular Hierarchical 3-body Problem will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-833163

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.