Search for continuous gravitational wave emission from the Milky Way center in O3 LIGO-Virgo data
學年 111
學期 1
出版（發表）日期 2022-08-09
作品名稱 Search for continuous gravitational wave emission from the Milky Way center in O3 LIGO-Virgo data
作品名稱（其他語言）
著者 Liu, Guo-qing
單位
出版者
著錄名稱、卷期、頁數 Phys. Rev. D 106,　042003
摘要 We present a directed search for continuous gravitational wave (CW) signals emitted by spinning neutron stars located in the inner parsecs of the Galactic Center (GC). Compelling evidence for the presence of a numerous population of neutron stars has been reported in the literature, turning this region into a very interesting place to look for CWs. In this search, data from the full O3 LIGO-Virgo run in the detector frequency band [ 10 , 2000 ]     Hz have been used. No significant detection was found and 95% confidence level upper limits on the signal strain amplitude were computed, over the full search band, with the deepest limit of about 7.6 × 10 − 26 at ≃ 142     Hz . These results are significantly more constraining than those reported in previous searches. We use these limits to put constraints on the fiducial neutron star ellipticity and r-mode amplitude. These limits can be also translated into constraints in the black hole mass–boson mass plane for a hypothetical population of boson clouds around spinning black holes located in the GC.
關鍵字 Cosmic rays & astroparticles;Dark matter;General relativity;Gravitational waves
語言 zh_TW
ISSN
期刊性質 國內
收錄於 SCI
產學合作
通訊作者
審稿制度 否
國別 TWN
公開徵稿
出版型式 ,電子版
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機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/124291 )