Live Science's 19 September 2026 note asks whether lensing could reshape masses inferred for GW231123. A companion ApJL analysis quotes lower totals and wide microlens bands while stressing a waveform-only claim.
Live Science's 19 September 2026 note by Harry Baker revisits GW231123, the November 2023 merger billed as the heaviest black-hole collision catalogued so far and awkward for standard mass-gap thinking. The piece asks whether gravitational lensing could bend inferred masses rather than the underlying astrophysics, and it points readers to a peer-reviewed Astrophysical Journal Letters analysis as the quantitative backing behind the news hook.[1]
ApJL 1008 (2026) L12 explores a lensed reading in which an unlensed total near two hundred to two hundred sixty-five solar masses can slide toward a lower total between one hundred and one hundred eighty, while a separate compact microlens component is allowed between one hundred ninety and eight hundred fifty solar masses. The authors quote a conservative false-alarm probability near one percent, and Live Science restates those intervals without claiming an imaged lens galaxy.[1]
Coverage stresses that lensing here is a waveform interpretation, not an independent optical sighting of a lens galaxy, and no gravitational-wave event is yet accepted as unambiguously lensed. Whether a future detector run would catch a second image remains open, and the 19 September note does not settle that question.[1]
