University of Birmingham > Talks@bham > Theoretical Physics Seminars > Exoplanet Dynamics and Counting with Confusion

Exoplanet Dynamics and Counting with Confusion

Add to your list(s) Download to your calendar using vCal

  • UserDr Will Meierjurgen Farr, UoB
  • ClockThursday 02 October 2014, 13:45-15:00
  • HouseTheory Library.

If you have a question about this talk, please contact Kevin Ralley.

Resonances in the long-term (secular) orbital evolution of planets are important in shaping the architecture of exoplanet systems. I will explain how one particular resonance—-the Kozai resonance—-can help produce the population of “hot Jupiter” planets. These planets are Jupiter-sized, but orbit more closely to their host stars than Mercury does to the sun. Some even orbit in a retrograde sense to their host star’s spin, an unusual orbital configuration explained by the Kozai resonance. When several secular resonances overlap, the result is chaos; I will explain how this effect produces instabilities observed in our own solar system, and some of my current work to understand how it could be active in exoplanet systems. Finally, I will discuss some recent work counting the number of Earth-like exoplanets in the Kepler satellite’s planetary data—-in the presence of severe selection effects and a confusing background of false-positive detections.

This talk is part of the Theoretical Physics Seminars series.

Tell a friend about this talk:

This talk is included in these lists:

Note that ex-directory lists are not shown.


Talks@bham, University of Birmingham. Contact Us | Help and Documentation | Privacy and Publicity.
talks@bham is based on from the University of Cambridge.