Research - Computational Relativistic Astrophysics

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High-Energy Transients and Relativistic Plasma Physics

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E. R. Most, A. A. Philippov. Reconnection-powered fast radio transients from coalescing neutron star binaries. Phys. Rev. Lett., 130, 245201, 2023.
E. R. Most and E. Quataert. Flares, jets and quasi-periodic outbursts from neutron star merger remnants. Astrophys. J. Lett., 947 L15, 2023.
E. R. Most and A. A. Philippov. Electromagnetic Precursors to Black Hole–Neutron Star Gravitational Wave Events: Flares and Reconnection-powered Fast Radio Transients from the Late Inspiral. Astrophys. J. Lett., 956 L33. 2023.
E. R. Most, J. Noronha, A. A. Philippov. Modeling general-relativistic plasmas with collisionless moments and dissipative two-fluid magnetohydrodynamics. Mon. Not. R. Astron. Soc., 514, 4, 4989–5003, 2022.
E. R. Most, A. A. Philippov. Electromagnetic precursor flares from the late inspiral of neutron star binaries. Mon. Not. R. Astron. Soc., 515, 2, 2710–2724, 2022.
E. R. Most and A. A. Philippov. Electromagnetic precursors to gravitational wave events: Numerical simulations of flaring in pre-merger binary neutron star magnetospheres. Astrophys. J. Lett., 893, L6, 2020.
E. R. Most, A. Nathanail, L. Rezzolla. Electromagnetic Emission from Blitzars and Its Impact on Non-repeating Fast Radio Bursts. Astrophys. J., 864:117, 2018.
A. Nathanail, E. R. Most, and L. Rezzolla. Gravitational collapse to a Kerr-Newman black hole. Mon. Not. R. Astron. Soc., 469:L31–L35, 2017.

Gravitational Waves and Nuclear Astrophysics

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E. R. Most, L. R. Weih, L. Rezzolla, and J. Schaffner-Bielich. New Constraints on Radii and Tidal Deformabilities of Neutron Stars from GW170817.
Phys. Rev. Lett., 120(26):261103, 2018.
E. R. Most, L. J. Papenfort, V. Dexheimer, M. Hanauske, S. Schramm, H. Stöcker, and L. Rezzolla. Signatures of Quark-Hadron Phase Transitions in General-Relativistic Neutron-Star Mergers. Phys. Rev. Lett., 122:061101, 2019.
E. R. Most, L. J. Papenfort, L. R. Weih, L. Rezzolla. A lower bound on the maximum mass if the secondary in GW190814 was once a rapidly spinning neutron star. Mon. Not. R. Astron. Soc. Lett., 499 (1), L82-L86, 2020.
E. R. Most, A. Haber, S.P. Harris, Z. Zhang, M.G. Alford, J. Noronha. Emergence of Microphysical Bulk Viscosity in Binary Neutron Star Postmerger Dynamics. Astrophys. J. Lett, 967, L14, 2024.
C. A. Raithel, E. R. Most. Degeneracy in the inference of phase transitions in the neutron star equation of state from gravitational wave data. Phys. Rev. Lett., 130, 201403, 2023.
E. R. Most, A. Motornenko, J. Steinheimer, V. Dexheimer, M. Hanauske, L. Rezzolla, H. Stoecker. Probing neutron-star matter in the lab: Similarities and differences between binary mergers and heavy-ion collisions. Phys. Rev. D, 107 4, 043034, 2023.
E. R. Most, S. P. Harris, C. Plumberg, M. G. Alford, J. Noronha, J. Noronha-Hostler, F. Pretorius, H. Witek, N. Yunes. Projecting the likely importance of weak-interaction-driven bulk viscosity in neutron star mergers. Mon. Not. R. Astron. Soc., 509 (1), 1096–1108, 2022.
C. A. Raithel, E. R. Most. Characterizing the breakdown of quasi-universality in the post-merger gravitational waves from binary neutron star mergers. Astrophys. J. Lett., 933:L39, 2022.

Numerical Relativity and Relativistic Fluids

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E. R. Most. Impact of a mean field dynamo on neutron star mergers leading to magnetar remnants, Physical Review D, 108, 123012 (2023).
E. R. Most, J. Noronha. Dissipative magnetohydrodynamics for nonresistive relativistic plasmas: An implicit second-order flux-conservative formulation with stiff relaxation, Physical Review D, 104, 10, 103028 (2021).
E. R. Most, L. J. Papenfort, and L. Rezzolla. Beyond second-order convergence in simulations of magnetised binary neutron stars with realistic microphysics. Mon. Not. R. Astron. Soc., 490:3588–3600, 2019.
E. R. Most, L. J. Papenfort, S. Tootle, L. Rezzolla. On accretion disks formed in MHD simulations of black hole-neutron star mergers with accurate microphysics. Mon. Not. R. Astron. Soc., 506 (3), 3511–3526, 2021.
E. R. Most, L. J. Papenfort, S. Tootle, L. Rezzolla. Fast ejecta as a potential way to distinguish black holes from neutron stars in high-mass gravitational-wave events. Astrophys. J., 912:1, 80, 2021.
A. Hegade K.R., E. R. Most, J. Noronha, H. Witek, N. Yunes. How Do Axisymmetric Black Holes Grow Monopole and Dipole Hair? Phys. Rev. D, 107, 10, 104047, 2023.
H. Olivares, I. Peshkov, E. R. Most, F. Guercilena, L. J. Papenfort. A new first-order formulation of the Einstein equations exploiting analogies with electrodynamics. Phys. Rev. D., 105 12, 124038, 2022.