Analogue Hawking radiation has been observed in laboratory systems.

The verdict rests on three lines of evidence weighed together.

First, stimulated analogue Hawking emission is securely established. The water-wave subclaim rests on Weinfurtner et al. (2011) and successor experiments, which measured the predicted mode-conversion coefficients at a draining-flow horizon; the optical subclaim rests on Drori et al. (2019), which observed stimulated Hawking radiation in a fibre-optical horizon (earlier optical claims by Belgiorno et al. in 2010 were disputed and are not load-bearing). Neither subclaim faces a live challenge. On a reading of the claim where stimulated emission counts as analogue Hawking radiation, the claim is true beyond serious dispute.

Second, the spontaneous quantum observation. The subclaim that spontaneous analogue Hawking radiation has been detected in Bose-Einstein condensates rests on Steinhauer (Nature Physics 2016, correlations and entanglement), de Nova et al. (Nature 2019, thermal spectrum and temperature), and Kolobov et al. (Nature Physics 2021, stationarity and time evolution). The methodology improved across the series and the 2019 and 2021 results answered specific objections to the 2016 analysis.

Third, the contradicting subclaim: Leonhardt's critique (published 2018, arXiv 1609.03803) that the correlation signal could be amplified classical noise. This is a credible, published objection by a leading figure in the field, answered in print by Steinhauer (Ann. Phys. 2018). The balance of the literature treats the observations as genuine but the critique as not fully closed, chiefly because the spontaneous result has not been independently replicated on another apparatus.

Weighing: the claim as canonically stated does not specify spontaneous emission, so the undisputed stimulated observations alone nearly carry it; the contested BEC results determine only whether it holds in its strongest sense. That asymmetry supports "supported" rather than "contested" (the credible dispute touches one reading, not the claim as a whole) and rather than "verified" (the headline observations most readers intend by the claim, the spontaneous ones, rest on a single group and a live interpretive objection). Credence 0.9 reflects near-certainty on the stimulated reading discounted by residual doubt on the spontaneous one.

What would change the conclusion: independent replication of the spontaneous BEC observation would move the claim toward verified; a demonstration that the correlation signal in all three Technion experiments is reproducible from classical noise alone would move the claim toward contested and confine it to the stimulated reading.

The presupposition that the Hawking effect is kinematic and arises at any effective horizon (Unruh 1981) is standard theory, uncontested in the discourse, and is treated as settled scaffolding.