This discrepancy is particularly pronounced in retrograde encounters, where relativistic simulations predict up to $30\%$ more separation events and an earlier onset of binary separation ($\beta=2$ compared to $2. 5$ in Newtonian simulations, with $\beta$ the impact parameter).
High Energy Astrophysical Phenomena General Relativity and Quantum Cosmology
In addition, we identify a linear trend in the RV time series, and the cause of this acceleration is deemed to be a newly detected sub-stellar companion at large separation.
Earth and Planetary Astrophysics
Impacts onto planets around low-mass stars are found to be very sensitive to the planetary architecture, with the survival of complex prebiotic molecules potentially impossible in loosely-packed systems.
Earth and Planetary Astrophysics
We describe the implementation of the symplectic N-body integrator WHFast512 using Single Instruction Multiple Data (SIMD) parallelism and 512-bit Advanced Vector Extensions (AVX512).
Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics Computational Physics
We performed dynamical simulations which establish that the previously identified $\sim800$ d RV signal cannot be attributed to an orbiting body.
Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics Solar and Stellar Astrophysics
The new orbital solution and dynamical state of the system confirm migration models that predicted near circular orbits as the preferred scenario.
Earth and Planetary Astrophysics
For planets that are highly misaligned with respect to an eccentric orbit binary, there are stationary (non-oscillating) tilt configurations that are generalisations of polar configurations for the single planet case.
Earth and Planetary Astrophysics
The performance of the plane-sweep algorithm is superior to a tree code for simulations in which one dimension is much longer than the other two and in simulations which are quasi-two dimensional with less than one million particles.
Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics Dynamical Systems Computational Physics
The algorithm can handle close encounters and high-eccentricity orbits.
Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics Solar and Stellar Astrophysics Numerical Analysis
We implement symplectic correctors up to order eleven that significantly reduce the energy error.
Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics Numerical Analysis Chaotic Dynamics Computational Physics
