de.mpg.escidoc.pubman.appbase.FacesBean
English
 
Help Guide Disclaimer Contact us Login
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Conformal and covariant formulation of the Z4 system with constraint-violation damping

Alic, D., Bona-Casas, C., Bona, C., Rezzolla, L., & Palenzuela, C. (2012). Conformal and covariant formulation of the Z4 system with constraint-violation damping. Physical Review D, 85(6): 064040. doi:10.1103/PhysRevD.85.064040.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-A8A7-E Version Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-A8A8-C
Genre: Journal Article

Files

show Files
hide Files
:
1106.2254 (Preprint), 414KB
Description:
File downloaded from arXiv at 2012-07-03 14:06
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
:
PRD85_064040.pdf (Any fulltext), 589KB
Description:
-
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
Alic, Daniela1, Author              
Bona-Casas, Carles, Author
Bona, Carles, Author
Rezzolla, Luciano1, Author              
Palenzuela, Carlos1, Author              
Affiliations:
1Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, escidoc:24013              

Content

show
hide
Free keywords: General Relativity and Quantum Cosmology, gr-qc
 Abstract: We present a new formulation of the Einstein equations based on a conformal and traceless decomposition of the covariant form of the Z4 system. This formulation combines the advantages of a conformal decomposition, such as the one used in the BSSNOK formulation (i.e. well-tested hyperbolic gauges, no need for excision, robustness to imperfect boundary conditions) with the advantages of a constraint-damped formulation, such as the generalized harmonic one (i.e. exponential decay of constraint violations when these are produced). We validate the new set of equations through standard tests and by evolving binary black hole systems. Overall, the new conformal formulation leads to a better behavior of the constraint equations and a rapid suppression of the violations when they occur. The changes necessary to implement the new conformal formulation in standard BSSNOK codes are very small as are the additional computational costs.

Details

show
hide
Language(s):
 Dates: 2011-06-112012-03-252012
 Publication Status: Published in print
 Pages: 12 pages, 7 figures. Version matching the one in press on PRD
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1106.2254
DOI: 10.1103/PhysRevD.85.064040
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Physical Review D
  Other : Phys. Rev. D.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Lancaster, Pa. : Published for the American Physical Society by the American Institute of Physics
Pages: - Volume / Issue: 85 (6) Sequence Number: 064040 Start / End Page: - Identifier: ISSN: 0556-2821
CoNE: http://pubman.mpdl.mpg.de/cone/journals/resource/111088197762258