English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Improving the NRTidal model for binary neutron star systems

Dietrich, T., Samajdar, A., Khan, S., Johnson-McDaniel, N. K., Dudi, R., & Tichy, W. (2019). Improving the NRTidal model for binary neutron star systems. Physical Review D, 100(4): 044003. doi:10.1103/PhysRevD.100.044003.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/21.11116/0000-0003-ABE3-C Version Permalink: http://hdl.handle.net/21.11116/0000-0004-8488-D
Genre: Journal Article

Files

show Files
hide Files
:
1905.06011.pdf (Preprint), 6MB
Name:
1905.06011.pdf
Description:
File downloaded from arXiv at 2019-05-27 07:43
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
:
PhysRevD.100.044003.pdf (Publisher version), 11MB
 
File Permalink:
-
Name:
PhysRevD.100.044003.pdf
Description:
-
Visibility:
Restricted (Max Planck Institute for Gravitational Physics (Albert Einstein Institute), Potsdam-Golm; )
MIME-Type / Checksum:
application/pdf
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
Dietrich, Tim, Author
Samajdar, Anuradha, Author
Khan, Sebastian1, Author              
Johnson-McDaniel, Nathan K., Author
Dudi, Reetika, Author
Tichy, Wolfgang, Author
Affiliations:
1Binary Merger Observations and Numerical Relativity, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_2461691              

Content

show
hide
Free keywords: General Relativity and Quantum Cosmology, gr-qc, Astrophysics, High Energy Astrophysical Phenomena, astro-ph.HE
 Abstract: Accurate and fast gravitational waveform (GW) models are essential to extract information about the properties of compact binary systems that generate GWs. Building on previous work, we present an extension of the NRTidal model for binary neutron star (BNS) waveforms. The upgrades are: (i) a new closed-form expression for the tidal contribution to the GW phase which includes further analytical knowledge and is calibrated to more accurate numerical relativity data than previously available; (ii) a tidal correction to the GW amplitude; (iii) an extension of the spin-sector incorporating equation-of-state-dependent finite size effects at quadrupolar and octupolar order; these appear in the spin-spin tail terms and cubic-in-spin terms, both at 3.5PN. We add the new description to the precessing binary black hole waveform model IMRPhenomPv2 to obtain a frequency-domain precessing binary neutron star model. In addition, we extend the SEOBNRv4_ROM and IMRPhenomD aligned-spin binary black hole waveform models with the improved tidal phase corrections. Focusing on the new IMRPhenomPv2_NRTidalv2 approximant, we test the model by comparing with numerical relativity waveforms as well as hybrid waveforms combining tidal effective-one-body and numerical relativity data. We also check consistency against a tidal effective-one-body model across large regions of the BNS parameter space.

Details

show
hide
Language(s):
 Dates: 2019-05-152019
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1905.06011
URI: http://arxiv.org/abs/1905.06011
DOI: 10.1103/PhysRevD.100.044003
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Physical Review D
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 100 (4) Sequence Number: 044003 Start / End Page: - Identifier: -