@article{article, title  = {{Directional limits on persistent gravitational waves using data from Advanced LIGO’s first two observing runs}},

 publisher = {{American Physical Society (APS)}},

 url = {{https://doi.org/10.1103/physrevd.100.062001 }},

 year = {{2019}},

 month = {{9}},

 author = {{Abbott BP and Abbott R and Abbott TD and Abraham S and Acernese F and Ackley K and Adams C and Adhikari RX and Adya VB and Affeldt C and Agathos M et al}},

 doi = {{10.1103/physrevd.100.062001}},

 volume = {{100}},

 journal = {{Physical Review D}},

 issue = {{6}},

 note = {{Accessed on 2025/11/23}}}