Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Elias R. Most"'
Publikováno v:
The Astrophysical Journal Letters, Vol 974, Iss 1, p L12 (2024)
We perform the first magnetohydrodynamic simulation tracking the magnetosphere of a collapsing magnetar. The collapse is expected for massive rotating magnetars formed in merger events and may occur many hours after the merger. Our simulation suggest
Externí odkaz:
https://doaj.org/article/97a99f27647d4d8b9f5806489fc4a22d
Publikováno v:
The Astrophysical Journal Letters, Vol 973, Iss 2, p L37 (2024)
Neutron stars have solid crusts threaded by strong magnetic fields. Perturbations in the crust can excite nonradial oscillations, which can in turn launch Alfvén waves into the magnetosphere. In the case of a compact binary close to merger involving
Externí odkaz:
https://doaj.org/article/2786711a65f64ab6a67f546197158801
Autor:
Elias R. Most, Hai-Yang Wang
Publikováno v:
The Astrophysical Journal Letters, Vol 973, Iss 1, p L19 (2024)
Binary systems with comparable masses and a surrounding accretion disk can accrete gas through spiral accretion streams penetrating the central cavity formed by tidal interactions. Using three-dimensional Newtonian magnetohydrodynamics simulations, w
Externí odkaz:
https://doaj.org/article/0887896e29a64a74baa8973a1ce01b51
Autor:
Elias R. Most, Alexander Haber, Steven P. Harris, Ziyuan Zhang, Mark G. Alford, Jorge Noronha
Publikováno v:
The Astrophysical Journal Letters, Vol 967, Iss 1, p L14 (2024)
In nuclear matter in isolated neutron stars, the flavor content (e.g., proton fraction) is subject to weak interactions, establishing flavor ( β -)equilibrium. However, there can be deviations from this equilibrium during the merger of two neutron s
Externí odkaz:
https://doaj.org/article/2f2fcdbbafd0432f8e6f407defb122c4
Publikováno v:
The Astrophysical Journal, Vol 971, Iss 1, p 37 (2024)
We analyze the structure and dynamics of the plasma atmospheres and Coulomb-liquid oceans on neutron stars. Salient dynamical parameters are identified and their values estimated for the governing set of magnetohydrodynamics equations. Neutron star a
Externí odkaz:
https://doaj.org/article/8c31744a2c474c9082d427a2fbdad052
Autor:
Elias R. Most, Alexander A. Philippov
Publikováno v:
The Astrophysical Journal Letters, Vol 956, Iss 2, p L33 (2023)
The presence of magnetic fields in the late inspiral of black hole–neutron star binaries could lead to potentially detectable electromagnetic precursor transients. Using general-relativistic force-free electrodynamics simulations, we investigate pr
Externí odkaz:
https://doaj.org/article/c040eb23952444228ac5ca99879cb280
Publikováno v:
The Astrophysical Journal Letters, Vol 945, Iss 1, p L14 (2023)
The amplification of magnetic fields plays an important role in explaining numerous astrophysical phenomena associated with binary neutron star mergers, such as mass ejection and the powering of short gamma-ray bursts. Magnetic fields in isolated neu
Externí odkaz:
https://doaj.org/article/f36211f42cac4a7ca696b1f9d658a6e1
Autor:
Elias R. Most, Eliot Quataert
Publikováno v:
The Astrophysical Journal Letters, Vol 947, Iss 1, p L15 (2023)
Using numerical relativity simulations with a subgrid dynamo prescription to generate strong initial magnetic fields, we investigate the possibility of launching a jet-like outflow from the hypermassive neutron star (HMNS) during the early stages of
Externí odkaz:
https://doaj.org/article/aee661339cb34aceba65c8ee63ee8bb4
Autor:
Veronica Dexheimer, Constantinos Constantinou, Elias R. Most, L. Jens Papenfort, Matthias Hanauske, Stefan Schramm, Horst Stoecker, Luciano Rezzolla
Publikováno v:
Universe, Vol 5, Iss 5, p 129 (2019)
In this work, we discuss the dense matter equation of state (EOS) for the extreme range of conditions encountered in neutron stars and their mergers. The calculation of the properties of such an EOS involves modeling different degrees of freedom (suc
Externí odkaz:
https://doaj.org/article/1332eaaa9c3b489c97a65bffbdfe10a3
Publikováno v:
Physical Review D. 107
We study the dynamical formation of scalar monopole and dipole hair in scalar Gauss-Bonnet theory and dynamical Chern-Simons theory. We prove that the spherically-symmetric mode of the dipole hair is completely determined by the product of the mass o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8a653c59d0c3a4c7fd4e3e57f5e592e6
https://doi.org/10.1103/physrevd.107.104047
https://doi.org/10.1103/physrevd.107.104047