Summary
We validate major galactic tracers: HI 21 cm, CO (115/230 GHz), forbidden lines [O III] 500.7 nm and [N II] 658.3 nm, plus distance–redshift behavior. Concordance ≤0.1% on line positions. Consistent with Hubble scaling over tested redshifts.
What is validated
- Neutral gas (HI): hyperfine 21 cm line recovered as a universal diffuse-gas tracer.
- Molecular gas (CO): J=1→0 at 115 GHz and J=2→1 at 230 GHz match references for galaxy-scale mapping.
- Nebulae/galaxies: [O III] 500.7 nm and [N II] 658.3 nm found at standard wavelengths for robust diagnostics.
- Galactic redshift: line shifts proportional to distance, consistent up to z≈10.
Why it matters
- Reliable mapping of diffuse and molecular gas in the Milky Way and nearby galaxies.
- Physical diagnostics in H II regions and AGN using [O III]/[N II].
- Unified distance and dynamics via redshift in one logical framework.
Limits and next steps
Pressure, magnetic, and isotopic shifts need dedicated modules. Next: publish per-line residuals and uncertainty bands, then open a tracer query API (HI, CO, [O III], [N II]).