Cardiff University | Prifysgol Caerdydd ORCA
Online Research @ Cardiff 
WelshClear Cookie - decide language by browser settings

Accelerating parameter estimation of gravitational waves from black hole binaries with reduced order quadratures

Puerrer, Michael, Smith, Rory, Field, Scott, Canizares, Priscilla, Raymond, Vivien, Gair, Jonathan and Hannam, Mark 2017. Accelerating parameter estimation of gravitational waves from black hole binaries with reduced order quadratures. Presented at: 14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, 12 -18 July 2015. Published in: Bianchi, Massimo, Jantzen, Robert T. and Ruffini, Remo eds. 14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories: Proceedings of the MG14 Meeting on General Relativity. World Scientific Publishing, pp. 2015-2018. 10.1142/9789813226609_0218

[img]
Preview
PDF - Accepted Post-Print Version
Download (235kB) | Preview

Abstract

The inference of binary parameters from gravitational waves (GW) is one of the key science goals of the collaboration operating the advanced ground-based LIGO-Virgo detector network. We employ reduced order quadratures (ROQs) to substantially reduce the size of large inner products arising in Bayesian parameter estimation (PE) and thus enable studies of the GWs emitted by coalescences of spinning stellar mass black hole binaries approaching the full design sensitivity of these detectors. We build the first ROQs that include the inspiral, merger and ringdown parts of the GWs for a single-spin precessing phenomenological waveform model (IMRPhenomP) and for an aligned-spin effective-one-body model (SEOBNRv2). The ROQs for SEOBNRv2 use a separate reduced order model (ROM) as a proxy. The ROQs we have constructed are suitable for any power spectrum density function of ground-based GW detector noise. We find speedups in the calculation of inner products and the likelihood function of up to several hundreds, reducing to days analyses which could otherwise take up to a year to complete.

Item Type: Conference or Workshop Item (Paper)
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Publisher: World Scientific Publishing
ISBN: 9789813226609
Date of First Compliant Deposit: 11 January 2019
Last Modified: 14 Aug 2019 08:41
URI: http://orca.cf.ac.uk/id/eprint/118319

Actions (repository staff only)

Edit Item Edit Item

Downloads

Downloads per month over past year

View more statistics