135 citations · 1.6k across the 70 of their papers we have counts for
70 papers
A post-selected quantum model of cosmic acceleration
Dimitris Lionas, Charis Anastopoulos, Konstantinos Gourgouliatos
The origin of cosmic acceleration remains a central problem in cosmology, commonly attributed to a cosmological constant within the CDM model or to dynamical dark energy. Here,…
Centrifugal instability of compressible flows and the hydrodynamic stability of accretion disks
Serguei S. Komissarov, Konstantinos N. Gourgouliatos
A recent analysis of the centrifugal instability in the case of pressure-supported compressible relativistic rotation, with application to astrophysical jets, yielded a generalisat…
Magnetic plasmoid explosions in the context of magnetar giant flares and fast radio bursts
Konstantinos N. Gourgouliatos
Magnetar flares are highly energetic and rare events in which intense X and γ-ray emission is released from strongly magnetised neutron stars. The events are also accompanied by ma…
Equation of State of Highly Asymmetric Neutron-Star Matter from Liquid Drop Model and Meson Polytropes
Elissaios Andronopoulos, Konstantinos N. Gourgouliatos
We present a unified description of dense matter and neutron-star structure based on simple but physically motivated models. Starting from the thermodynamics of degenerate Fermi ga…
Dissecting NGC 3132: Tracing the mass-loss history of the southern ring planetary nebula
K. Bouvis, S. Akras, H. Monteiro +7
Central to our understanding of stellar evolution and its impact on processes in our Galaxy and across the Universe is the study of mass loss. While the general framework is well e…
Interlinking internal and external magnetic fields of relativistically rotating neutron stars
D. Ntotsikas, K. N. Gourgouliatos
This work presents a global solution for the internal and the external field of an axisymmetric rotating neutron star. It is shown that the twist of the internal field affects the…