Slicing conditions for axisymmetric gravitational collapse of Brill waves

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F18%3A10388216" target="_blank" >RIV/00216208:11320/18:10388216 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1088/1361-6382/aae1bc" target="_blank" >https://doi.org/10.1088/1361-6382/aae1bc</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1361-6382/aae1bc" target="_blank" >10.1088/1361-6382/aae1bc</a>

Result language

angličtina

Original language name

Slicing conditions for axisymmetric gravitational collapse of Brill waves

Original language description

In numerical relativity, spacetimes involving compact strongly gravitating objects are constructed as numerical solutions of Einstein&apos;s equations. Success of such a process strongly depends on the availability of appropriate coordinates, which are typically constructed dynamically. A very robust coordinate choice is a so-called moving puncture gauge, commonly used for numerical simulations of black hole spacetimes. Nevertheless it is known to fail for evolving near-critical Brill wave data. We construct a new &apos;quasi-maximal&apos; slicing condition and demonstrate that it exhibits better behavior for such data. This condition is based on the 1+log slicing with an additional source term derived from maximal slicing. It is relatively simple to implement in existing moving puncture codes and computationally inexpensive. We also illustrate the properties of constructed spacetimes based on gauge-independent quantities in compactified spacetime diagrams. These invariants are also used to show how created black holes settle down to a Schwarzschild black hole.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10300 - Physical sciences

Project

<a href="/en/project/GB14-37086G" target="_blank" >GB14-37086G: Albert Einstein Center for Gravitation and Astrophysics</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Classical and Quantum Gravity

ISSN

0264-9381

e-ISSN

—

Volume of the periodical

35

Issue of the periodical within the volume

21

Country of publishing house

GB - UNITED KINGDOM

Number of pages

19

Pages from-to

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UT code for WoS article

000446847500003

EID of the result in the Scopus database

2-s2.0-85055352002