Table 1: Measured circumstellar ratios, and simulated emission intensities for the transitions under consideration. The circumstellar factors are taken from calibrated ESO/HARPS spectra of $\beta\:$ Pic (Galland F., Priv. Comm.). The emission intensities (given in arbitrary units) out of the mid-plane are derived from the CLOUDY run and those in the midplane are estimated by multiplying the former ones by the circumstellar factors.
Transition Circumstellar Emission Emission

factor intensity intensity

above the mid-plane in the mid-plane

Na I D₁ 0.91 12.5 11.4

Na I D₂ 0.90 24.8 22.3

Ca II K 0.033 15.8 0.521

Ca II H 0.0057 15.6 0.0889

Fe I 3859 Å 0.86 23.9 20.55

**Table 1:** Measured circumstellar ratios, and simulated emission intensities for the transitions under consideration. The circumstellar factors are taken from calibrated ESO/HARPS spectra of $\beta\:$ Pic (Galland F., Priv. Comm.). The emission intensities (given in arbitrary units) out of the mid-plane are derived from the CLOUDY run and those in the midplane are estimated by multiplying the former ones by the circumstellar factors.
Transition	Circumstellar	Emission	Emission
	factor	intensity	intensity
		above the mid-plane	in the mid-plane
Na I D₁	0.91	12.5	11.4
Na I D₂	0.90	24.8	22.3
Ca II K	0.033	15.8	0.521
Ca II H	0.0057	15.6	0.0889
Fe I 3859 Å	0.86	23.9	20.55

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