Identification and mitigation of narrow spectral artifacts that degrade searches for persistent gravitational waves in the first two observing runs of Advanced LIGO
Phys. Rev. D 97, 082002 (2018) Searches are under way in Advanced LIGO and Virgo data for persistent gravitational waves from continuous sources, e.g. rapidly rotating galactic neutron stars, and stochastic sources, e.g. relic gravitational waves from the Big Bang or superposition of distant astroph...
Saved in:
Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
---|---|
Format: | Journal Article |
Language: | English |
Published: |
22-01-2018
|
Subjects: | |
Online Access: | Get full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Summary: | Phys. Rev. D 97, 082002 (2018) Searches are under way in Advanced LIGO and Virgo data for persistent
gravitational waves from continuous sources, e.g. rapidly rotating galactic
neutron stars, and stochastic sources, e.g. relic gravitational waves from the
Big Bang or superposition of distant astrophysical events such as mergers of
black holes or neutron stars. These searches can be degraded by the presence of
narrow spectral artifacts (lines) due to instrumental or environmental
disturbances. We describe a variety of methods used for finding, identifying
and mitigating these artifacts, illustrated with particular examples. Results
are provided in the form of lists of line artifacts that can safely be treated
as non-astrophysical. Such lists are used to improve the efficiencies and
sensitivities of continuous and stochastic gravitational wave searches by
allowing vetoes of false outliers and permitting data cleaning. |
---|---|
DOI: | 10.48550/arxiv.1801.07204 |