Image Details
Caption: Figure 4.
Merger delays for compact objects sampled from a fragmenting region with inner edge a1 = 200 Rg and outer edge a2 = 300, 400, 500, or 600 Rg. Each row shows the delays of the prompt CO1 +BH mergers (orange) and the delayed CO2 +BH mergers (purple). The red line denotes the 60 day offset between SN 2019npv and GW190814.
© 2026. The Author(s). Published by the American Astronomical Society.