GW231001_140220
Gravitational-wave source · GWTC-4.1
A black hole of about 111 solar masses, formed on 2023-10-01 when two black holes of roughly 76 and 41 solar masses spiralled together 14.4 billion light-years away. LIGO and Virgo felt the collision as ripples in spacetime.
Computed render111 ☉
mass (the Sun = 1)
328 km
event-horizon radius (computed)
14.4 billion ly
from Earth
76+41 ☉
the two that merged
The two black holes that merged were about 76 (54–101) and 41 (25–59) solar masses. The remnant is 111 (89–140) 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 328 km in radius. The waves we detected had been travelling for 14.4 billion years before they reached us.
Black holes of similar mass
GW190602_175927Gravitational-wave source111 ☉GW241230_233618Gravitational-wave source112 ☉GW190706_222641Gravitational-wave source107 ☉GW191109_010717Gravitational-wave source107 ☉GW230814_061920Gravitational-wave source106 ☉GW230922_040658Gravitational-wave source119 ☉
Source: Gravitational-Wave Open Science Center (GWTC-4.1), LIGO Virgo KAGRA. CC BY 4.0. See data & analysis for full sourcing.