English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Simulations of inspiraling and merging double neutron stars using the Spectral Einstein Code

Haas, R., Ott, C. D., Szilagyi, B., Kaplan, J. D., Lippuner, J., Scheel, M. A., et al. (2016). Simulations of inspiraling and merging double neutron stars using the Spectral Einstein Code. Physical Review D, 93: 124062. doi:10.1103/PhysRevD.93.124062.

Item is

Files

show Files
hide Files
:
1604.00782.pdf (Preprint), 3MB
Name:
1604.00782.pdf
Description:
File downloaded from arXiv at 2016-05-25 12:50
OA-Status:
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
:
PRD93_124062.pdf (Publisher version), 2MB
 
File Permalink:
-
Name:
PRD93_124062.pdf
Description:
-
OA-Status:
Visibility:
Restricted (Max Planck Institute for Gravitational Physics (Albert Einstein Institute), MPGR; )
MIME-Type / Checksum:
application/pdf
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
Haas, Roland1, Author           
Ott, Christian D.2, Author           
Szilagyi, Bela3, Author           
Kaplan, Jeffrey D., Author
Lippuner, Jonas, Author
Scheel, Mark A., Author
Barkett, Kevin, Author
Muhlberger, Curran D., Author
Dietrich, Tim, Author
Duez, Matthew D., Author
Foucart, Francois, Author
Pfeiffer, Harald P., Author
Kidder, Lawrence E., Author
Teukolsky, Saul A., Author
Affiliations:
1Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_1933290              
2Stellar Astrophysics, MPI for Astrophysics, Max Planck Society, ou_159882              
3Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24013              

Content

show
hide
Free keywords: General Relativity and Quantum Cosmology, gr-qc
 Abstract: We present results on the inspiral, merger, and post-merger evolution of a neutron star - neutron star (NSNS) system. Our results are obtained using the hybrid pseudospectral-finite volume Spectral Einstein Code (SpEC). To test our numerical methods, we evolve an equal-mass system for $\approx 22$ orbits before merger. This waveform is the longest waveform obtained from fully general-relativistic simulations for NSNSs to date. Such long (and accurate) numerical waveforms are required to further improve semi-analytical models used in gravitational wave data analysis, for example the effective one body models. We discuss in detail the improvements to SpEC's ability to simulate NSNS mergers, in particular mesh refined grids to better resolve the merger and post-merger phases. We provide a set of consistency checks and compare our results to NSNS merger simulations with the independent BAM code. We find agreement between them, which increases confidence in results obtained with either code. This work paves the way for future studies using long waveforms and more complex microphysical descriptions of neutron star matter in SpEC.

Details

show
hide
Language(s):
 Dates: 2016-04-0420162016
 Publication Status: Issued
 Pages: 23 pages, 15 figures
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 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. : American Physical Society
Pages: - Volume / Issue: 93 Sequence Number: 124062 Start / End Page: - Identifier: ISSN: 0556-2821
CoNE: https://pure.mpg.de/cone/journals/resource/111088197762258