Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Cheong, Patrick Chi-Kit"'
Autor:
Cheong, Patrick Chi-Kit, Foucart, Francois, Duez, Matthew D., Offermans, Arthur, Muhammed, Nishad, Chawhan, Pavan
We compare two-moment based \emph{energy-dependent} and 3 variants of \emph{energy-integrated} neutrino transport general-relativistic magnetohydrodynamics simulations of hypermassive neutron star. To study the impacts due to the choice of the neutri
Externí odkaz:
http://arxiv.org/abs/2407.16017
Autor:
Foucart, Francois, Cheong, Patrick Chi-Kit, Duez, Matthew D., Kidder, Lawrence E., Pfeiffer, Harald P., Scheel, Mark A.
Binary neutron star mergers play an important role in nuclear astrophysics: their gravitational wave and electromagnetic signals carry information about the equation of state of cold matter above nuclear saturation density, and they may be one of the
Externí odkaz:
http://arxiv.org/abs/2407.15989
Autor:
Muhammed, Nishad, Duez, Matthew D., Chawhan, Pavan, Ghadiri, Noora, Buchman, Luisa T., Foucart, Francois, Cheong, Patrick Chi-Kit, Kidder, Lawrence E., Pfeiffer, Harald P., Scheel, Mark A.
Binary neutron star mergers produce massive, hot, rapidly differentially rotating neutron star remnants; electromagnetic and gravitational wave signals associated with the subsequent evolution depend on the stability of these remnants. Stability of r
Externí odkaz:
http://arxiv.org/abs/2403.05642
Autor:
Cheong, Patrick Chi-Kit, Muhammed, Nishad, Chawhan, Pavan, Duez, Matthew D., Foucart, Francois, Kidder, Lawrence E., Pfeiffer, Harald P., Scheel, Mark A.
The conformal flatness approximation to the Einstein equations has been successfully used in many astrophysical applications such as initial data constructions and dynamical simulations. Although it has been shown that full general relativistic stron
Externí odkaz:
http://arxiv.org/abs/2402.18529
Violent astrophysical events, including core-collapse supernovae and binary neutron star mergers, can result in rotating neutron stars with diverse degrees of differential rotation. Oscillation modes of these neutron stars could be excited and emit s
Externí odkaz:
http://arxiv.org/abs/2401.13993
Publikováno v:
2024 ApJS 272 9
We introduce \texttt{Weakhub}, a novel neutrino microphysics library that provides opacities and kernels beyond conventional interactions used in the literature. This library includes neutrino-matter, neutrino-photon, and neutrino-neutrino interactio
Externí odkaz:
http://arxiv.org/abs/2309.03526
Strong magnetic fields make neutron stars potential sources of detectable electromagnetic and gravitational-wave signals. Hence, inferring these magnetic fields is critical to understand the emissions of neutron stars. However, due to the lack of dir
Externí odkaz:
http://arxiv.org/abs/2305.15181
Strongly magnetized neutron stars are popular candidates for producing detectable electromagnetic and gravitational-wave signals. A rapid density increase in a neutron star core could also trigger the phase transition from hadrons to deconfined quark
Externí odkaz:
http://arxiv.org/abs/2303.16820
Publikováno v:
Communications Physics volume 5, Article number: 334 (2022)
Highly magnetized neutron stars are promising candidates to explain some of the most peculiar astronomical phenomena, for instance, fast radio bursts, gamma-ray bursts, and superluminous supernovae. Pulsations of these highly magnetized neutron stars
Externí odkaz:
http://arxiv.org/abs/2303.05684
Publikováno v:
2023 ApJS 267 38
We present the implementation of two-moment based general-relativistic multi-group radiation transport module in the $\texttt{G}$eneral-relativistic $\texttt{mu}$ltigrid $\texttt{nu}$merical ($\texttt{Gmunu}$) code. On top of solving the general-rela
Externí odkaz:
http://arxiv.org/abs/2303.03261