Julian Adamek
Numerical solutions to Einstein’s equations in a shearing-dust universe: a code comparison
Adamek, Julian; Barrera-Hinojosa, Cristian; Bruni, Marco; Li, Baojiu; Macpherson, Hayley J.; Mertens, James B.
Authors
Cristian Guzmaro Barrera Hinojosa cristian.g.barrera@durham.ac.uk
PGR Student Doctor of Philosophy
Marco Bruni
Professor Baojiu Li baojiu.li@durham.ac.uk
Professor
Hayley J. Macpherson
James B. Mertens
Abstract
A number of codes for general-relativistic simulations of cosmological structure formation have been developed in recent years. Here we demonstrate that a sample of these codes produce consistent results beyond the Newtonian regime. We simulate solutions to Einstein's equations dominated by gravitomagnetism—a vector-type gravitational field that does not exist in Newtonian gravity and produces frame-dragging, the leading-order post-Newtonian effect. We calculate the coordinate-invariant effect on intersecting null geodesics by performing ray tracing in each independent code. With this observable quantity, we assess and compare each code's ability to compute relativistic effects.
Citation
Adamek, J., Barrera-Hinojosa, C., Bruni, M., Li, B., Macpherson, H. J., & Mertens, J. B. (2020). Numerical solutions to Einstein’s equations in a shearing-dust universe: a code comparison. Classical and Quantum Gravity, 37(15), Article 154001. https://doi.org/10.1088/1361-6382/ab939b
Journal Article Type | Article |
---|---|
Acceptance Date | May 15, 2020 |
Online Publication Date | Jul 10, 2020 |
Publication Date | 2020-08 |
Deposit Date | Aug 12, 2020 |
Publicly Available Date | Aug 12, 2020 |
Journal | Classical and Quantum Gravity |
Print ISSN | 0264-9381 |
Electronic ISSN | 1361-6382 |
Publisher | IOP Publishing |
Peer Reviewed | Peer Reviewed |
Volume | 37 |
Issue | 15 |
Article Number | 154001 |
DOI | https://doi.org/10.1088/1361-6382/ab939b |
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Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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