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Astronomy · L5 · Strong-Lensing Time-Delay Cosmography & the Hubble Tension · flowchart

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by @openstemUpdated Astronomy
Quasar strongly lensed into multiple imagesEach image's light follows a different path and potential depthMonitor each image's brightness over yearsCross-correlate light curves to find the time delayCombine time delay with a lens mass modelInfer H0 independently of the distance ladder

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