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Impact of bar resonances in the velocity-space distribution of the solar neighbourhood stars in a self-consistent -body Galactic disc simulation
Tetsuro Asano, Michiko S. Fujii, Junichi Baba +3
The velocity-space distribution of the solar neighbourhood stars shows complex substructures. Most of the previous studies use static potentials to investigate their origins. Inste…
Neural Symplectic Integrator with Hamiltonian Inductive Bias for the Gravitational -body Problem
Maxwell X. Cai, Simon Portegies Zwart, Damian Podareanu
The gravitational -body problem, which is fundamentally important in astrophysics to predict the motion of celestial bodies under the mutual gravity of each other, is usuall…
Exploring the possibility of Peter Pan discs across stellar mass
Maite J. C. Wilhelm, Simon Portegies Zwart
Recently, several accreting M dwarf stars have been discovered with ages far exceeding the typical protoplanetary disc lifetime. These `Peter Pan discs' can be explained as primord…
Interstellar objects follow the collapse of molecular clouds
Susanne Pfalzner, Dylan Paterson, Michele T. Bannister +1
Interstellar objects (ISOs), the parent population of 1I/Oumuamua and 2I/Borisov, are abundant in the interstellar medium of the Milky Way. This means that the interstellar medium,…
Oort cloud Ecology II: The chronology of the formation of the Oort cloud
Simon Portegies Zwart, Santiago Torres, Maxwell X. Cai +1
We present a chronology of the formation and early evolution of the Oort cloud by simulations. These simulations start with the Solar System being born with planets and asteroids i…
Inside-Out Planet Formation: VI. Oligarchic Coagulation of Planetesimals from a Pebble Ring?
Maxwell X. Cai, Jonathan C. Tan, Simon Portegies Zwart
Inside-Out Planet Formation (IOPF) is a theory addressing the origin of Systems of Tightly-Packed Inner Planets (STIPs) via {\it in situ} formation and growth of the planets. It pr…