Upper limits on persistent gravitational waves using folded data and the full covariance matrix from Advanced LIGO${}^{\prime }$s first two observing runs

Deepali Agarwal, Jishnu Suresh, Sanjit Mitra +1

The stochastic gravitational-wave background (SGWB) created by astrophysical sources in the nearby Universe is likely to be anisotropic. Upper limits on SGWB anisotropy have been p…