2012/04/05 by Stefano Meschiari · 2 citations
Physics and Astronomy · #Accretion (finance) #Aerospace engineering #Astro and Planetary Science #Astrobiology #Astronomy #Astrophysics #Astrophysics and Star Formation Studies #Circumbinary planet #Gravitation #Kepler #Orbit (dynamics) #Physics #Planet #Planetesimal #Stars #Stellar, planetary, and galactic studies #astro-ph.EP
paper · pdf · doi:10.1088/0004-637x/752/1/71
6 pages, 4 figures. Accepted for publication in ApJ. Additional materials available at http://www.stefanom.org/?kep16b
arxiv created 2012/04/05 · openalex publication_date 2012/05/25 · arxiv updated 2015/06/04 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The recently discovered circumbinary planets (Kepler-16 b, Kepler 34-b, Kepler 35-b) represent the first direct evidence of the viability of planet formation in circumbinary orbits. We report on the results of N -body simulations investigating planetesimal accretion in the Kepler-16 b system, focusing on the range of impact velocities under the influence of both stars' gravitational perturbation and friction from a putative protoplanetary disk. Our results show that planet formation might be effectively inhibited for a large range in semimajor axis (1.75 ≲ a P ≲ 4 AU), suggesting that the planetary core must have either migrated from outside 4 AU or formed in situ very close to its current location.