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Harvesting graphics power for MD simulations
TLDR
An implementation of molecular dynamics simulations on a graphic processing unit (GPU) in the NVIDIA CUDA language and results for two MD algorithms suitable for short-ranged and long-ranged interactions, and a congruential shift random number generator are presented.
The evolution of hierarchical triple star-systems
Field stars are frequently formed in pairs, and many of these binaries are part of triples or even higher-order systems. Even though, the principles of single stellar evolution and binary evolution,
The consequences of a nearby supernova on the early solar system
If the Sun was born in a relatively compact open cluster (half-mass radius ≲3 pc) with ≳103stars, it is quite likely that a massive (≳10M⊙) star was nearby when it exploded in a supernova. The
A planetesimal orbiting within the debris disc around a white dwarf star
TLDR
A stable 123.4-minute periodic variation in the strength and shape of the Ca ii emission line profiles originating from the debris disc around the white dwarf SDSS J122859.93+104032 is interpreted as the signature of a solid-body planetesimal held together by its internal strength.
Survivability of planetary systems in young and dense star clusters
Aims. We perform a simulation using the Astrophysical Multipurpose Software Environment of the Orion Trapezium star cluster in which the evolution of the stars and the dynamics of planetary systems
Escape from a Crisis in Fokker-Planck Models
Recent N-body simulations have shown that there is a serious discrepancy between the results of N-body simulations and the results of Fokker-Planck simulations for the evolution of globular and rich
The ecological impact of high-performance computing in astrophysics
TLDR
Here I hope to raise the awareness of the environmental impact of running non-optimized code on overpowered computer hardware.
Gone with the wind: the impact of wind mass transfer on the orbital evolution of AGB binary systems
In low-mass binary systems, mass transfer is likely to occur via a slow and dense stellar wind when one of the stars is in the asymptotic giant branch (AGB) phase. Observations show that many
The formation of solar-system analogs in young star clusters
The solar system was once rich in the short-lived radionuclide (SLR) 26Al but poor in 60Fe. Several models have been proposed to explain these anomalous abundances in SLRs, but none has been set
Simulations of stripped core-collapse supernovae in close binaries
We perform smoothed-particle hydrodynamical simulations of the explosion of a helium star in a close binary system, and study the effects of the explosion on the companion star as well as the effect
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