Transit distances and compositions of low-velocity exocomets in the β Pic system

Open Access

Table B.1

Parameters fitted by the model.

		LVC #1	LVC #2	LVC #3	Disc
Nomenclature name^a		β Pic C20250429a	β Pic C20250429b	β Pic C20250429c
Parameter	Unit

N_S I	cm⁻²	3.0 ± 0.5 × 10¹²	1.29 ± 0.10 × 10¹²	1.5 ± 0.4 × 10¹²	1.0 ± 0.2 × 10¹³
N_Ca II	cm⁻²	1.64 ± 0.05 × 10¹²	7.4 ± 0.5 × 10¹²	8.6 ± 0.4 × 10¹²	${1.7}_{- 0.4}^{+ 0.9}$ $Mathematical equation: $\[1.7_{-0.4}^{+0.9}\]$$ × 10¹³
N_Mn II	cm⁻²	2.02 ± 0.11 × 10¹²	3.15 ± 0.18 × 10¹²	9.0 ± 0.8 × 10¹¹	1.33 ± 0.16 × 10¹²
N_Fe II	cm⁻²	3.57 ± 0.05 × 10¹⁴	6.20 ± 0.15 × 10¹⁴	1.41 ± 0.02 × 10¹⁴	2.2 ± 0.2 × 10¹⁴
N_Si II	cm⁻²	4.8 ± 0.4 × 10¹⁴	4.7 ± 0.5 × 10¹⁴	1.8 ± 0.2 × 10¹⁴	2.0 ± 0.5 × 10¹⁴
N_Cr II	cm⁻²	3.1 ± 0.3 × 10¹²	7.4 ± 0.4 × 10¹²	2.1 ± 0.2 × 10¹²	4.4 ± 0.4 × 10¹²
N_Ni II	cm⁻²	2.47 ± 0.10 × 10¹³	3.40 ± 0.12 × 10¹³	1.07 ± 0.07 × 10¹³	1.51 ± 0.10 × 10¹³
d	au	0.88 ± 0.08	4.7 ± 0.3	1.52 ± 0.15	$38_{- 11}^{+ 15}$ $Mathematical equation: $\[38_{-11}^{+15}\]$$
v	km s⁻¹	−7.57 ± 0.03	2.54 ± 0.05	9.92 ± 0.04	0 (fixed)
b	km s⁻¹	3.31 ± 0.04	2.79 ± 0.04	2.35 ± 0.06	1.03 ± 0.09
f_esc		0.20 ± 0.02	0.11 ± 0.02	0.09 ± 0.03	−
log(n_e)	cm⁻³	< 6	3.3 ± 0.3	< 5	2.7 ± 0.3
log(T_e)	K	−	2.9 ± 0.3	−	2.9 ± 0.3

^a Following Lecavelier des Etangs et al. (2026).

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