GW230805_034249
Gravitational-wave source · GWTC-4.1
A black hole of about 52 solar masses, formed on 2023-08-05 when two black holes of roughly 32 and 23 solar masses spiralled together 11.4 billion light-years away. LIGO and Virgo felt the collision as ripples in spacetime.
Computed render52.4 ☉
mass (the Sun = 1)
155 km
event-horizon radius (computed)
11.4 billion ly
from Earth
32+23 ☉
the two that merged
The two black holes that merged were about 32 (25–45) and 23 (15–30) solar masses. The remnant is 52 (43–65) solar masses. Values in parentheses are the 90% credible ranges from LIGO, Virgo and KAGRA (GWTC).
Its event horizon, the edge past which nothing returns, spans about 155 km in radius. The waves we detected had been travelling for 11.4 billion years before they reached us.
Black holes of similar mass
GW190513_205428Gravitational-wave source52.1 ☉GW250116_015318Gravitational-wave source53.0 ☉GW231026_130704Gravitational-wave source53.0 ☉GW240505_133552Gravitational-wave source51.8 ☉GW240531_075248Gravitational-wave source53.1 ☉GW230911_195324Gravitational-wave source53.1 ☉
Source: Gravitational-Wave Open Science Center (GWTC-4.1), LIGO Virgo KAGRA. CC BY 4.0. See data & analysis for full sourcing.