A 22 Billion Solar Mass Black Hole in Holmberg 15A with Keck KCWI Spectroscopy and Triaxial Orbit Modeling

Published in The Astrophysical Journal, 2025

Recommended citation: Liepold, E. R., Ma, C.-P., Walsh, J. L. 2025, Astrophys. J., 980, 58. https://iopscience.iop.org/article/10.3847/1538-4357/ada4b0