Inferring the Intermediate Mass Black Hole Number Density from Gravitational Wave Lensing Statistics

Joseph Gais,1, ∗ Ken Ng,2, 3 Eungwang Seo,1 Kaze W.K. Wong,4 and Tjonnie G. F. Li1 Department of Physics, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong. LIGO, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA Kavli Institute for Astrophysics and Space Research, Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA Center for Computational Astrophysics, Flatiron Institute, New York, NY 10010, USA