41 citations · 87 across the 4 of their papers we have counts for
6 papers
Neutrino trapping in extremely compact Tolman VII spacetimes
Zdeněk Stuchlík, Jan Hladík, Jaroslav Vrba +1
Extremely compact objects trap gravitational waves or neutrinos, assumed to move along null geodesics in the trapping regions. The trapping of neutrinos was extensively studied for…
Dynamical stability of the modified Tolman VII solution
Camilo Posada, Jan Hladík, Zdeněk Stuchlík
Studies of neutron stars are at their peak after the multi-messenger observation of the binary merger event GW170817, which strongly constraints the stellar parameters like tidal d…
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…
Dynamical instability of polytropic spheres in spacetimes with a cosmological constant
Camilo Posada, Jan Hladík, Zdenek Stuchlík
The dynamical instability of relativistic polytropic spheres, embedded in a spacetime with a repulsive cosmological constant, is studied in the framework of general relativity. We…
Radial instability of trapping polytropic spheres
Jan Hladík, Camilo Posada, Zdeněk Stuchlík
We complete the stability study of general relativistic spherically symmetric polytropic perfect fluid spheres, concentrating attention to the newly discovered polytropes containin…
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…