Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Claudio Meringolo"'
Autor:
Mario Imbrogno, Claudio Meringolo, Sergio Servidio, Alejandro Cruz-Osorio, Benoît Cerutti, Francesco Pegoraro
Publikováno v:
The Astrophysical Journal Letters, Vol 972, Iss 1, p L5 (2024)
Turbulence in classical fluids is characterized by persistent structures that emerge from the chaotic landscape. We investigate the analogous process in fully kinetic plasma turbulence by using high-resolution, direct numerical simulations in two spa
Externí odkaz:
https://doaj.org/article/371e18e8442d48c5b0ff8a36f51e3b46
Publikováno v:
The Astrophysical Journal, Vol 944, Iss 2, p 122 (2023)
The microphysical, kinetic properties of astrophysical plasmas near accreting compact objects are still poorly understood. For instance, in modern general-relativistic magnetohydrodynamic simulations, the relation between the temperature of electrons
Externí odkaz:
https://doaj.org/article/e7180731c70346828f6d3c01b75ec7bd
Publikováno v:
Classical and Quantum Gravity. 40:075008
We study the three-body problem going from Newtonian mechanics to general relativity. In the classical case, we model the interactions in a typical chaotic configuration, identifying extreme gravitational interactions (EGIs), namely transients in whi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::129fa097cd446cf97401ff86d7bdb10d
https://doi.org/10.1088/1361-6382/acb881
https://doi.org/10.1088/1361-6382/acb881
Autor:
Sergio Servidio, Claudio Meringolo
The Einstein field equations of gravitation are characterized by cross-scale, high-order nonlinear terms, representing a challenge for numerical modeling. In an exact spectral decomposition, high-order nonlinearities correspond to a convolution that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f55afe60b25ea6bc3bfabf2a962f743b
http://arxiv.org/abs/2108.00786
http://arxiv.org/abs/2108.00786
A numerical study of the Einstein field equations, based on the 3+1 foliation of the spacetime, is presented. A pseudo-spectral technique has been employed for simulations in vacuum, within two different formalisms, namely the Arnowitt-Deser-Misner (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a482393b6346d4d399c9f360aa441359