All-sky search for short gravitational-wave bursts in the first Advanced LIGO run

(LIGO Scientific Collaboration and Virgo Collaboration)

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

We present the results from an all-sky search for short-duration gravitational waves in the data of the first run of the Advanced LIGO detectors between September 2015 and January 2016. The search algorithms use minimal assumptions on the signal morphology, so they are sensitive to a wide range of sources emitting gravitational waves. The analyses target transient signals with duration ranging from milliseconds to seconds over the frequency band of 32 to 4096 Hz. The first observed gravitational-wave event, GW150914, has been detected with high confidence in this search; the other known gravitational-wave event, GW151226, falls below the search's sensitivity. Besides GW150914, all of the search results are consistent with the expected rate of accidental noise coincidences. Finally, we estimate rate-density limits for a broad range of non-binary-black-hole transient gravitational-wave sources as a function of their gravitational radiation emission energy and their characteristic frequency. These rate-density upper limits are stricter than those previously published by an order of magnitude.

Original languageEnglish
Article number042003
JournalPhysical Review D
Volume95
Issue number4
DOIs
StatePublished - 16 Feb 2017

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LIGO (observatory)
gravitational waves
sky
bursts
confidence
sensitivity
detectors
radiation
estimates

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(LIGO Scientific Collaboration and Virgo Collaboration). / All-sky search for short gravitational-wave bursts in the first Advanced LIGO run. In: Physical Review D. 2017 ; Vol. 95, No. 4.
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All-sky search for short gravitational-wave bursts in the first Advanced LIGO run. / (LIGO Scientific Collaboration and Virgo Collaboration).

In: Physical Review D, Vol. 95, No. 4, 042003, 16.02.2017.

Research output: Contribution to journalArticle

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AU - Aufmuth, P.

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AB - We present the results from an all-sky search for short-duration gravitational waves in the data of the first run of the Advanced LIGO detectors between September 2015 and January 2016. The search algorithms use minimal assumptions on the signal morphology, so they are sensitive to a wide range of sources emitting gravitational waves. The analyses target transient signals with duration ranging from milliseconds to seconds over the frequency band of 32 to 4096 Hz. The first observed gravitational-wave event, GW150914, has been detected with high confidence in this search; the other known gravitational-wave event, GW151226, falls below the search's sensitivity. Besides GW150914, all of the search results are consistent with the expected rate of accidental noise coincidences. Finally, we estimate rate-density limits for a broad range of non-binary-black-hole transient gravitational-wave sources as a function of their gravitational radiation emission energy and their characteristic frequency. These rate-density upper limits are stricter than those previously published by an order of magnitude.

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