Revisiting the Tertiary-induced Binary Black Hole Mergers: the Role of Superthermal Wide Tertiary Eccentricity Distributions

Yubo Su, Bin Liu, Siyao Xu

Recent studies show that the eccentricity distribution of wide binaries (semimajor axis $\gtrsim 10^3\mathrm{AU}$) observed by \emph{Gaia} tends to favor large eccentricities more…