212 citations · 482 across the 10 of their papers we have counts for
9 papers · 1 filter
Capture of interstellar objects II: by the Solar system
Walter Dehnen, Thomas O. Hands, Ralph Schönrich
Capture of interstellar objects (ISOs) into the Solar system is dominated by ISOs with asymptotic incoming speeds km\,s. The capture rate is proportional to th…
Capture of interstellar objects I: the capture cross-section
Walter Dehnen, Thomas O. Hands
We study the capture of interstellar objects (ISOs) by a planet-star binary with mass ratio , semi-major axis , orbital speed , and eccentricity . Very close…
Super stellar abundances of alkali metals suggest significant migration for Hot Jupiters
Tom Hands, Ravit Helled
We investigate the origin of the measured over-abundance of alkali metals in the atmospheres of hot gas giants, relative to both their host stars and their atmospheric water abunda…
Bifurcation of planetary building blocks during Solar System formation
Tim Lichtenberg, Joanna Drazkowska, Maria Schönbächler +2
Geochemical and astronomical evidence demonstrate that planet formation occurred in two spatially and temporally separated reservoirs. The origin of this dichotomy is unknown. We u…
Capture of interstellar objects: a source of long-period comets
Tom Hands, Walter Dehnen
We simulate the passage through the Sun-Jupiter system of interstellar objects (ISOs) similar to 1I/`Oumuamua or 2I/Borisov. Capture of such objects is rare and overwhelmingly from…
The fate of planetesimal discs in young open clusters: implications for 1I/'Oumuamua, the Kuiper belt, the Oort cloud and more
Thomas Oliver Hands, Walter Dehnen, Amery Gration +2
We perform -body simulations of the early phases of open cluster evolution including a large population of planetesimals, initially arranged in Kuiper-belt like discs around eac…