download0 view25
twitter facebook

공공누리This item is licensed Korea Open Government License

Title
All-sky search for short gravitational-wave bursts in the second Advanced LIGO and Advanced Virgo run
Author(s)
LIGO Scientific Collaboration and Virgo Collaboration배상욱강궁원
Publisher
American Physical Society
Publication Year
2019-07-11
Abstract
We present the results of a search for short-duration gravitational-wave transients in the data from the second observing run of Advanced LIGO and Advanced Virgo. We search for gravitational-wave transients with a duration of milliseconds to approximately one second in the 32–4096 Hz frequency band with minimal assumptions about the signal properties, thus targeting a wide variety of sources. We also perform a matched-filter search for gravitational-wave transients from cosmic string cusps for which the waveform is well modeled. The unmodeled search detected gravitational waves from several binary black hole mergers which have been identified by previous analyses. No other significant events have been found by either the unmodeled search or the cosmic string search. We thus present the search sensitivities for a variety of signal waveforms and report upper limits on the source rate density as a function of the characteristic frequency of the signal. These upper limits are a factor of 3 lower than the first observing run, with a 50% detection probability for gravitational-wave emissions with energies of ∼10⁻⁹M⊙c² at 153 Hz. For the search dedicated to cosmic string cusps we consider several loop distribution models, and present updated constraints from the same search done in the first observing run.
Keyword
gravitational wave; 중력파
Journal Title
Physical review. D;
Citation Volume
100
ISSN
2470-0010
DOI
10.1103/physrevd.100.024017
Files in This Item:
There are no files associated with this item.
Appears in Collections:
7. KISTI 연구성과 > 학술지 발표논문
URI
https://repository.kisti.re.kr/handle/10580/17782
Fulltext
 https://scienceon.kisti.re.kr/srch/selectPORSrchArticle.do?cn=NART109489940
Export
RIS (EndNote)
XLS (Excel)
XML

Browse