Today in Astronomy 142 - Astro Pas Rochester
Today in Astronomy 142 - Astro Pas Rochester
Today in Astronomy 142 - Astro Pas Rochester
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opacity and photosphered⌧ = apple⇢drd⌧dr = apple⇢dPdr = ⇢gdPd⌧ = dPdroptical depth with radiushydrostatic equilibriumdrd⌧ = ⇢g ⇥ 1apple⇢ = g appleat photosphere τ=1P at photosphere =g/κPressure broaden<strong>in</strong>g of spectral l<strong>in</strong>es gives ameasurement for g<strong><strong>Astro</strong>nomy</strong> <strong>142</strong> 10
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