92 citations · 213 across the 9 of their papers we have counts for
9 papers
Dark matter halos modeled by polytropic spheres influenced by the relict cosmological constant and trapping polytropes forming supermassive black holes
Zdeněk Stuchlík, Jan Novotný, Jan Hladík
We study dark matter halos modeled by general relativistic polytropic spheres in spacetimes with the repulsive cosmological constant representing vacuum energy density, governed by…
Polytropic spheres modelling dark matter halos of dwarf galaxies
Jan Novotný, Zdeněk Stuchlík, Jan Hladík
Dwarf galaxies and their dark matter (DM) halos have the velocity curves of a different character than those in large galaxies. They are modelled by a simple pseudo iso-thermal mod…
Implementing CUDA Streams into AstroAccelerate -- A Case Study
Jan Novotný, Karel Adámek, Wes Armour
To be able to run tasks asynchronously on NVIDIA GPUs a programmer must explicitly implement asynchronous execution in their code using the syntax of CUDA streams. Streams allow a…
Efficiency Near the Edge: Increasing the Energy Efficiency of FFTs on GPUs for Real-time Edge Computing
Karel Adámek, Jan Novotný, Jeyarajan Thiyagalingam +1
The Square Kilometre Array (SKA) is an international initiative for developing the world's largest radio telescope with a total collecting area of over a million square meters. The…
Development of production-ready GPU data processing pipeline software for AstroAccelerate
Cees Carels, Karel Adámek, Jan Novotný +1
Upcoming large scale telescope projects such as the Square Kilometre Array (SKA) will see high data rates and large data volumes; requiring tools that can analyse telescope event d…
Searching for pulsars in extreme orbits -- GPU acceleration of the Fourier domain 'jerk' search
Karel Adámek, Jan Novotný, Sofia Dimoudi +1
Binary pulsars are an important target for radio surveys because they present a natural laboratory for a wide range of astrophysics for example testing general relativity, includin…
Gravitational instability of polytropic spheres containing region of trapped null geodesics: a possible explanation of central supermassive black holes in galactic halos
Zdeněk Stuchlík, Jan Schee, Bobir Toshmatov +2
We study behaviour of gravitational waves in the recently introduced general relativistic polytropic spheres containing a region of trapped null geodesics extended around radius of…
Polytropic spheres containing regions of trapped null geodesics
Jan Novotný, Jan Hladík, Zdeněk Stuchlík
We demonstrate that in the framework of standard general relativity polytropic spheres with properly fixed polytropic index and relativistic parameter , giving ratio of the…
General relativistic polytropes with a repulsive cosmological constant
Zdeněk Stuchlík, Stanislav Hledík, Jan Novotný
Spherically symmetric equilibrium configurations of perfect fluid obeying a polytropic equation of state are studied in spacetimes with a repulsive cosmological constant. The confi…