| Literature DB >> 30003183 |
Milton Ruiz1, Stuart L Shapiro1,2, Antonios Tsokaros1.
Abstract
Recent numerical simulations in general relativistic magnetohydrodynamics (GRMHD) provide useful constraints for the interpretation of the GW170817 discovery. Combining the observed data with these simulations leads to a bound on the maximum mass of a cold, spherical neutron star (the TOV limit): Mmaxsph≲2.74/β , where β is the ratio of the maximum mass of a uniformly rotating neutron star (the supramassive limit) over the maximum mass of a nonrotating star. Causality arguments allow β to be as high as 1.27, while most realistic candidate equations of state predict β to be closer to 1.2, yielding Mmaxsph in the range 2.16-2.28M⊙. A minimal set of assumptions based on these simulations distinguishes this analysis from previous ones, but leads a to similar estimate. There are caveats, however, and they are enumerated and discussed. The caveats can be removed by further simulations and analysis to firm up the basic argument.Entities:
Year: 2018 PMID: 30003183 PMCID: PMC6036631 DOI: 10.1103/PhysRevD.97.021501
Source DB: PubMed Journal: Phys Rev D ISSN: 2470-0010 Impact factor: 5.296