Application of a zero-latency whitening filter to compact binary coalescence gravitational-wave searches

Joint electromagnetic and gravitational-wave (GW) observation is a major goal of both the GW astronomy and electromagnetic astronomy communities for the coming decade. One way to accomplish this goal is to direct follow-up of GW candidates. Prompt electromagnetic emission may fade quickly, therefore...

Full description

Saved in:
Bibliographic Details
Published in:Physical review. D 2018-05, Vol.97 (10), Article 103009
Main Authors: Tsukada, Leo, Cannon, Kipp, Hanna, Chad, Keppel, Drew, Meacher, Duncan, Messick, Cody
Format: Article
Language:English
Subjects:
Astronomy
Binary stars
Coalescing
Gravitation
Gravitational waves
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Joint electromagnetic and gravitational-wave (GW) observation is a major goal of both the GW astronomy and electromagnetic astronomy communities for the coming decade. One way to accomplish this goal is to direct follow-up of GW candidates. Prompt electromagnetic emission may fade quickly, therefore it is desirable to have GW detection happen as quickly as possible. A leading source of latency in GW detection is the whitening of the data. We examine the performance of a zero-latency whitening filter in a detection pipeline for compact binary coalescence (CBC) GW signals. We find that the filter reproduces signal-to-noise ratio (SNR) sufficiently consistent with the results of the original high-latency and phase-preserving filter for both noise and artificial GW signals (called “injections”). Additionally, we demonstrate that these two whitening filters show excellent agreement in χ2 value, a discriminator for GW signals.
ISSN:2470-0010
2470-0029
DOI:10.1103/PhysRevD.97.103009