Search for continuous gravitational waves from neutron stars in five globular clusters in the first part of the fourth LIGO-Virgo-KAGRA observing run
University of Michigan(密歇根大学);Universitat de les Illes Balears(巴利阿里群岛大学);LIGO Livingston Observatory(LIGO利文斯顿天文台);Instituto Nacional de Pesquisas Espaciais(国家空间研究所);University of British Columbia(不列颠哥伦比亚大学);University of Melbourne(墨尔本大学)
Damon H. T. Cheung, Keith Riles, Rafel Amengual, Preet Baxi, Alicia Calafat, Anamaria Effler, Tabata Aira Ferreira, Evan Goetz, David Keitel, Tom Kimpson, Alan … 展开作者
Damon H. T. Cheung, Keith Riles, Rafel Amengual, Preet Baxi, Alicia Calafat, Anamaria Effler, Tabata Aira Ferreira, Evan Goetz, David Keitel, Tom Kimpson, Alan M. Knee, Joan-Rene Merou, Quynh Lan Nguyen, Joseph O'Leary, Ornella J. Piccinni, Alicia M. Sintes, Rebekah Slocum, Karl Wette
We present the results of directed searches for continuous gravitational waves from unknown neutron stars in five Milky Way globular clusters. We carry out these searches in the LIGO data from the first eight months of the fourth LIGO-Virgo-KAGRA observing run using the WEAVE semicoherent program, which sums matched-filter detection-statistic values over many time segments spanning the observation period. No gravitational wave signal is detected in the search band of 20-475 Hz. Injections of simulated continuous wave signals in the data indicate that we achieve the most sensitive results to date across most of the explored parameter space volume, obtaining median 95% confidence level upper limits as low as $\sim 4.2 \times 10^{-26}$ near 282 Hz for NGC 6397. We also derive upper limits on neutron star ellipticity and $r$-mode amplitudes, reaching $\lesssim 10^{-5}$ and $\lesssim 10^{-3}$, respectively, at frequencies above 200 Hz.
Searching for gravitational waves from compact binary mergers powering long gamma-ray bursts during LIGO-Virgo-KAGRA's O3 run
Monash University(莫纳什大学);OzGrav: The ARC Centre of Excellence for Gravitational Wave Discovery(引力波发现ARC卓越中心);Princeton University(普林斯顿大学);University of Cambridge(剑桥大学)
Search for Peak Structures in the Stochastic Gravitational-Wave Background in LIGO-Virgo-KAGRA O1-O4a Datasets
Institut de Física d’Altes Energies (IFAE)(高等能源物理研究所);Barcelona Institute of Science and Technology (BIST)(巴塞罗那科学与技术研究院);Universitat Autònoma de Barcelona (UAB)(巴塞罗那自治大学);Catalan Institution for Research and Advanced Studies (ICREA)(加泰罗尼亚研究高级机构)
Compact Binary Coalescence Sensitivity Estimates with Injection Campaigns during the LIGO-Virgo-KAGRA Collaborations' Fourth Observing Run
University of Toronto(多伦多大学);University of Minnesota(明尼苏达大学);Northwestern University(西北大学);NSF-Simons AI Institute for the Sky (SkAI)(NSF-Simons天空人工智能研究所);MIT(麻省理工学院);Monash University(蒙纳士大学);OzGrav: The ARC Centre of Excellence for Gravitational-wave Discovery(OzGrav:ARC引力波发现卓越中心);University of Glasgow(格拉斯哥大学);California Institute of Technology(加州理工学院);University of Manitoba(曼尼托巴大学);University of Wisconsin-Milwaukee(威斯康星大学密尔沃基分校);University of Portsmouth(朴茨茅斯大学);University of Santiago de Compostela(圣地亚哥-德孔波斯特拉大学);The Pennsylvania State University(宾夕法尼亚州立大学);Georgia Institute of Technology(佐治亚理工学院);University of Florida(佛罗里达大学);Université de Lyon(里昂大学);University of Birmingham(伯明翰大学);Liege University(列日大学);University of Maryland, College Park(马里兰大学帕克分校);The University of Chicago(芝加哥大学)
Application of the third RIT binary black hole simulations catalog to parameter estimation of gravitational waves signals from the LIGO-Virgo O1/O2 observational runs
Searches for inspiral gravitational waves associated with short gamma-ray bursts in LIGO's fifth and Virgo's first science run
两个致密物体的合并,比如两颗中子星或一颗中子星和一个黑洞,很可能是短伽马射线暴的起源。这些事件也是有希望的引力波来源,目前正在激发国际引力波探测器网络的相关搜索。在这里,我们描述了一个搜索的引力波从螺旋阶段的两个合并紧凑的对象,在巧合的短伽玛射线暴发生在LIGO的第五次科学运行和处女座的第一次科学运行。这次搜索包括22个GRB,这些GRB的数据来自LIGO/Virgo网络中的多个探测器。没有发现统计上显著的引力波候选者,参数检验表明在我们的伽玛暴样本中没有多余的弱引力波信号。90%~ C. L.在中子星-黑洞祖先模型假设下,我们的样本中伽玛暴的中位排斥距离为6.7 Mpc。
Search for gravitational waves associated with high-energy neutrinos detected by IceCube during the third observing run of LIGO-Virgo
Universiteit Gent(根特大学);STAR Institute, Université de Liège(列日大学STAR研究所);Johns Hopkins University(约翰斯·霍普金斯大学);University of Catania(卡塔尼亚大学);Cardiff University(卡迪夫大学)
Constraints on the Population of Common Sources of Gravitational Waves and High-Energy Neutrinos with IceCube During the Third Observing Run of the LIGO and Virgo Detectors
Orta Doğu Teknik Üniversitesi(中东技术大学);Columbia University in the City of New York(纽约市哥伦比亚大学)
Scalar fields around black hole binaries in LIGO-Virgo-KAGRA
Université Catholique de Louvain(天主教鲁汶大学);Royal Observatory of Belgium(比利时皇家天文台);University of Amsterdam(阿姆斯特丹大学);Massachusetts Institute of Technology(麻省理工学院);Queen Mary University of London(伦敦玛丽女王大学);University of Oxford(牛津大学)
Detecting electromagnetic counterparts to LIGO/Virgo/KAGRA gravitational wave events with DECam: Neutron Star Mergers
Carnegie Mellon University(卡内基梅隆大学);University of Chicago(芝加哥大学);University of Ferrara(费拉拉大学);INFN, Sezione di Ferrara(意大利国家核物理研究所费拉拉分部);INAF, Osservatorio Astronomico d’Abruzzo(意大利国家天体物理研究所阿布鲁佐天文台);Universität Potsdam(波茨坦大学);Max Planck Institute for Gravitational Physics (Albert Einstein Institute)(马克斯·普朗克引力物理学研究所(爱因斯坦研究所));Utrecht University(乌得勒支大学);Nikhef(荷兰国家核物理与粒子物理研究所);California Institute of Technology(加州理工学院);University of North Carolina at Chapel Hill(北卡罗来纳大学教堂山分校)
The Proper Motion of Strongly Lensed Binary Neutron Star Mergers in LIGO/Virgo/Kagra can be Constrained by Measuring Doppler Induced Gravitational Wave Dephasing
Constraints on primordial black holes from the first part of LIGO-Virgo-KAGRA fourth observing run
LIGO Laboratory, Massachusetts Institute of Technology(麻省理工学院);Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology(麻省理工学院);Institut de Física d’Altes Energies (IFAE), Barcelona Institute of Science and Technology(巴塞罗那科学技术大学);New York University Abu Dhabi(纽约大学阿布扎比分校);Keemilise ja Bioloogilise Füüsika Instituut(塔尔图大学化学与生物物理研究所);Dipartimento di Fisica e Astronomia, Università degli Studi di Padova(帕多瓦大学);Istituto Nazionale di Fisica Nucleare, Sezione di Padova(意大利国家核物理研究所);Catalan Institution for Research and Advanced Studies (ICREA)(加泰罗尼亚研究高级学院)
Assessing astrophysical foreground subtraction in DECIGO using compact binary populations inferred from the first part of the LIGO-Virgo-KAGRA's fourth observation run
Research Center for the Early Universe (RESCEU), Graduate School of Science, The University of Tokyo(东京大学理学研究科早期宇宙研究中心)