Absorbing Column Density (nH) ○◂ Relationships

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• ❪𝛿❫ Astronomical Quantities ○
• ❪𝛿’❫⁺ Spectral Fitting Parameters ○
• phabs ⚬ˣˢᵖᵉᶜ
• tbabs ⚬ˣˢᵖᵉᶜ

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