Low-z Lyα and CGM simulation–observation research Content Archive

9 posts · Page 1 of 1

1. Synthetic absorption spectra to real absorbers: low-z Lyα, CGM, and ML methods2026-09-01
2. Five absorber updates: RHD line matching, CGM winds, Na I flows, SpenderQ, and IFU geometry2026-09-08
3. Eight absorber updates: synthetic outflow spectra, C IV infilling, TNG100 oxygen, COLIBRE pressures, and an M31 halo search2026-09-15
4. Ten halo-gas updates: a 0.5% X-ray filling factor, kSZ gas fractions, where the Lyα forest goes dark, and a WHIM fraction cut by more than half2026-09-22
5. Eleven absorber updates: a 0.95 Å completeness floor, a galaxy–forest peak 10 cMpc inside the measured one, and a U-Net whose every confident error sits near a damped absorber2026-09-29
6. Eleven CGM updates: an observed clumping factor at least eight times the simulated one, damped absorbers that shift 40 per cent with the ionisation model, and a Lyα forest inside a z ≈ 7.57 galaxy2026-10-06
7. Twelve gas-census updates: 17 to 28 per cent of the baryons inside halos, a WHIM tracer excess of 2.6, and two 21-cm absorbers 0.035 apart in redshift2026-10-13
8. Ten gas updates: carbon 11,000 times below solar, an 18-parameter Lyα-forest model compressed to six, and a recombination sink overstated by 53 per cent2026-10-20
9. Ten gas updates: a neutral wind that vanishes between 1-pc and 4-pc cells, a forest CNN that falls from F1 0.8 to 0.5, and 132 low-redshift 21-cm absorbers2026-10-27

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