WHOOMP! (There It Is) Rapid Bayesian position reconstruction for gravitational-wave transients

Document #:

LIGO-P1500009-v3

Document type:

P - Publications

Abstract:

Within the next few years, Advanced LIGO and Virgo should detect gravitational waves (GWs) from binary neutron star and neutron star–black hole mergers. These sources are also predicted to power a broad array of electromagnetic transients. Because the X-ray and optical signatures can be faint and fade rapidly, observing them hinges on rapidly inferring the sky location from the gravitational wave observations. Markov chain Monte Carlo (MCMC) methods for gravitational-wave parameter estimation can take hours or more. We introduce BAYESTAR, a rapid, Bayesian, non-MCMC sky localization algorithm that takes just seconds to produce probability sky maps that are comparable in accuracy to the full analysis. Prompt localizations from BAYESTAR will make it possible to search electromagnetic counterparts of compact binary mergers.

Files in Document:

• Manuscript (ms.pdf, 1.0 MB)

Other Files:

• Sparkler slide (Keynote) (sparkler.key, 938.5 kB)
• Sparkler slide (PDF) (sparkler.pdf, 389.1 kB)
• Sparkler slide (PNG) (sparkler.png, 286.1 kB)

Topics:

• Compact Binaries
• Data Analysis
• Astrophysics / Multi-messenger
• Data analysis software

Authors:

• Leo Singer
• Larry Price

Keywords:

bayestar rapid localization binary neutron star multimessenger

Notes and Changes:

Addresses LSC-PP comments. Includes new rate-of-convergence plot for distance integral.

Publication Information:

Possible target journals: PRX, PRD, ApJ, CQG.
Submitted to arXiv.