English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Accurate evolutions of inspiralling neutron-star binaries: assessment of the truncation error

MPS-Authors
/persons/resource/persons20657

Giacomazzo,  Bruno
Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons20670

Rezzolla,  Luciano
Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

Locator
There are no locators available
Fulltext (public)

0901.4955v1.pdf
(Preprint), 332KB

Supplementary Material (public)
There is no public supplementary material available
Citation

Baiotti, L., Giacomazzo, B., & Rezzolla, L. (2009). Accurate evolutions of inspiralling neutron-star binaries: assessment of the truncation error. Nrda. Retrieved from http://arxiv.org/abs/0901.4955.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0013-45DE-6
Abstract
We have recently presented an investigation in full general relativity of the dynamics and gravitational-wave emission from binary neutron stars which inspiral and merge, producing a black hole surrounded by a torus (see arXiv:0804.0594). We here discuss in more detail the convergence properties of the results presented in arXiv:0804.0594 and, in particular, the deterioration of the convergence rate at the merger and during the survival of the merged object, when strong shocks are formed and turbulence develops. We also show that physically reasonable and numerically convergent results obtained at low-resolution suffer however from large truncation errors and hence are of little physical use. We summarize our findings in an "error budget", which includes the different sources of possible inaccuracies we have investigated and provides a first quantitative assessment of the precision in the modelling of compact fluid binaries.