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pro vyhledávání: '"Koliogiannis, P. S."'
The recent observation of a compact star with a mass of $M=0.77^{+0.20}_{-0.17}~{\rm M_{\odot}}$ and a radius of $R=10.4^{+0.86}_{-0.78}$ km, located within the supernova remnant HESS J1731-347, has substantially reinforced the evidence for the prese
Externí odkaz:
http://arxiv.org/abs/2410.05083
Autor:
Koliogiannis, P. S., Vikiaris, M., Panos, C., Petousis, V., Veselsky, M., Moustakidis, Ch. C.
In a remarkable study by M. Gleiser and N. Jiang (Phys. Rev. D {\bf 92}, 044046, 2015), the authors demonstrated that the stability regions of neutron stars, within the framework of the simple Fermi gas model, and self-gravitating configurations of c
Externí odkaz:
http://arxiv.org/abs/2409.02803
The recent analysis on the central compact object in the HESS J1731-347 remnant suggests interestingly small values for its mass and radius. Such an observation favors soft nuclear models that may be challenged by the observation of massive compact s
Externí odkaz:
http://arxiv.org/abs/2312.07113
Publikováno v:
Phys. Rev. D 107, 023012 (2023)
In agreement with the constantly increasing gravitational wave events, new aspects of the internal structure of compact stars can be considered. A scenario in which a first order transition takes place inside these stars is of particular interest as
Externí odkaz:
http://arxiv.org/abs/2210.15644
Publikováno v:
Universe 2022, 8(8), 395
Over the last few years, the detection of gravitational waves from binary neutron star systems has rekindled our hopes for a deeper understanding of the unknown nature of ultradense matter. In particular, gravitational wave constraints on the tidal d
Externí odkaz:
http://arxiv.org/abs/2207.03347
Publikováno v:
Phys. Rev. D 107, 044069 (2023)
We systematically extend the statement that the configurational entropy provides an alternative approach to studying gravitational stability of compact objects, carried out in the previous work of M. Gleiser and N. Jiang, Phys. Rev. D {\bf 92}, 04404
Externí odkaz:
http://arxiv.org/abs/2206.12138
Publikováno v:
Phys. Lett. B 832, 137267 (2022)
The study of binary neutron stars mergers by the detection of the emitted gravitational waves is one of the most promised tools to study the properties of dense nuclear matter at high densities. It is worth claiming that, at the moment, strong eviden
Externí odkaz:
http://arxiv.org/abs/2202.01820
Publikováno v:
Foundations 2021, 1(2), 217-255
Neutron stars are the densest known objects in the universe and an ideal laboratory for the strange physics of super-condensed matter. Theoretical studies in connection with recent observational data of isolated neutron stars, as well as binary neutr
Externí odkaz:
http://arxiv.org/abs/2110.13557
The study of neutron star mergers by the detection of the emitted gravitational waves is one of the most promised tools to study the properties of dense nuclear matter at high densities. It is worth claiming that, at the moment, strong evidence that
Externí odkaz:
http://arxiv.org/abs/2110.10270
Publikováno v:
EPJ Web of Conferences 252, 06001 (2021)
In agreement with the gravitational-wave events which are constantly increasing, new aspects of the internal structure of compact stars have come to light. A scenario in which a first order transition takes place inside these stars is of particular i
Externí odkaz:
http://arxiv.org/abs/2106.14488