Zobrazeno 1 - 10
of 1 429
pro vyhledávání: '"Duez, P."'
Autor:
Cheong, Patrick Chi-Kit, Foucart, Francois, Ng, Harry Ho-Yin, Offermans, Arthur, Duez, Matthew D., Muhammed, Nishad, Chawhan, Pavan
We investigate the influence of inelastic neutrino microphysics in general-relativistic magnetohydrodynamics simulations of a hypermassive neutron star. In particular, we include species/energy groups coupled neutrino-matter interactions, such as ine
Externí odkaz:
http://arxiv.org/abs/2410.20681
Autor:
Duez, Matthew D., Cadenhead, Courtney L., Etienne, Zachariah B., Kelly, Bernard, Werneck, Leonardo R.
Two-dimensional models assuming axisymmetry are an economical way to explore the long-term evolution of black hole accretion disks, but they are only realistic if the feedback of the nonaxisymmetric turbulence on the mean momentum and magnetic fields
Externí odkaz:
http://arxiv.org/abs/2409.02899
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:
Deppe, Nils, Foucart, Francois, Bonilla, Marceline S., Boyle, Michael, Corso, Nicholas J., Duez, Matthew D., Giesler, Matthew, Hébert, François, Kidder, Lawrence E., Kim, Yoonsoo, Kumar, Prayush, Legred, Isaac, Lovelace, Geoffrey, Most, Elias R., Moxon, Jordan, Nelli, Kyle C., Pfeiffer, Harald P., Scheel, Mark A., Teukolsky, Saul A., Throwe, William, Vu, Nils L.
We present a discontinuous Galerkin-finite difference hybrid scheme that allows high-order shock capturing with the discontinuous Galerkin method for general relativistic magnetohydrodynamics in dynamical spacetimes. We present several optimizations
Externí odkaz:
http://arxiv.org/abs/2406.19038
Autor:
Martineau, Tia, Foucart, Francois, Scheel, Mark, Duez, Matthew, Kidder, Lawrence, Pfeiffer, Harald
In May 2023, the LIGO Livingston observatory detected the likely black hole-neutron star (BHNS) merger GW230529_181500. That event is expected to be the merger of a 2.5-4.5 $M_{\odot}$ primary with a secondary compact object of mass between 1.2-2.0 $
Externí odkaz:
http://arxiv.org/abs/2405.06819
Autor:
Foucart, Francois, Duez, Matthew D., Kidder, Lawrence E., Pfeiffer, Harald P., Scheel, Mark A.
Predicting the properties of the matter ejected during and after a neutron star merger is crucial to our ability to use electromagnetic observations of these mergers to constrain the masses of the neutron stars, the equation of state of dense matter,
Externí odkaz:
http://arxiv.org/abs/2404.18674
Autor:
Duez, Matthew D.
The gravitational wave signals of black hole-neutron star (BHNS) binary systems have now been detected, and future detections might be accompanied by electromagnetic counterparts. BHNS mergers involve much of the same physics as binary neutron star m
Externí odkaz:
http://arxiv.org/abs/2404.14782
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