Terrestrial planet formation in a circumbinary disc around a coplanar binary

With n-body simulations, we model terrestrial circumbinary planet (CBP) formation with an initial surface density profile motivated by hydrodynamic gas disc simulations. The binary plays important role in shaping the distribution of bodies. After has dissipated, torque from speeds up process promoting body-body interactions but also drives ejection building material system at early time. Fewer more massive planets form around a close compared to single star system. A sufficiently wide or eccentric can prohibit formation. Eccentric binaries and exterior giant exacerbate these effects as they both reduce radial range stable orbits. However, large enough region, that do are massive, inclined. remain on orbits all our simulations suggesting long-lived planetary systems once formed.