The formation and long-term evolution of circumbinary planetary systems across the H-R diagram

Session

MS systems

Session 2

15 Jan 2025, 10:10

Fuligno Cenacle

12. An overview of circumbinary population with Kepler & TESS

Jerome Orosz

15/01/2025, 10:10

It has been almost 15 years since the breakthrough discovery of Kepler-16, which was the first unambiguous detection of a planet orbiting both stars in a binary system with main sequence stars. Thanks largely to the Kepler and TESS missions, around 20 such circumbinary planets have already been detected and some trends seem to have emerged. Unraveling the characteristics of these circumbinary...

13. Finding Circumbinary Planets: A Transit Detection Framework for TESS Eclipsing Binaries

Benjamin Davies

15/01/2025, 11:15

The detection of circumbinary planets (CBPs) represents an exciting breakthrough in exoplanetary science. However, the number of known CBPs remains small; out of the several thousand known transiting exoplanets, only 14 are CBPs. This small sample size presents a challenge for studying the formation, evolution, and bulk properties of CBPs. In this contribution, I will present a framework for...

14. Don’t FORCES It - Toward an occurrence rate of transiting TESS CBPs

Dominic Oddo

15/01/2025, 11:35

NASA’s Transiting Exoplanet Survey Satellite (TESS) has revolutionized our understanding of nearby low-mass stars, providing a wealth of data for exploring planetary systems in unprecedented detail. We can leverage this excellent dataset to study TESS’s sample of low-mass M+M binaries, which offers interesting cross-sectional science merit from both stellar and planetary perspectives. I am...

15. Searching for circumbinary planets using orbital dynamics

David Martin

15/01/2025, 11:55

Planets orbiting single stars transit almost strictly periodically. Yes, there can be some small transit timing variations (TTVs), but these are typically on the order of seconds or minutes. Fundamentally, we find planets around single stars assuming periodic transits, and then characterise any TTVs after the fact. This is not possible for circumbinary planets because geometry and 3-body...

16. Low mass and long period circumbinary exoplanets

Amaury Triaud

15/01/2025, 14:00

Since 2018 the BEBOP radial velocity survey for circumbinary exoplanet has been monitoring 100 main sequence binaries in both hemispheres. In this talk I will how we have managed to detect circumbinary planets in single as well as double-lined binaries. I will also show preliminary results about a number of other credible candidates. We find that we do not see the same population of planet...

17. Orbital stability of circumbinary system

Nikolaos Georgakarakos

15/01/2025, 14:35

In this talk we revisit the problem of the stability of circumbinary planetary orbits and how to identify stable and unstable motion in such cases. In the first part of the talk, we discuss some past results and how the problem has been dealt with so far. We present some stability criteria along with their advantages and disadvantages. In the second part of the talk, we present the latest...