Table 5: Range of reliability of the physical parameters of the grains (from errors in the fitting and variations in the assumed geometry).
Lower limit Upper limit

PAH Y 0 $1.0\times 10^{-6}$

VSG $\alpha$ 2.6 5.2

a₊ 35 Å 120 Å

Y $1.3\times 10^{-5}$ $2.3\times 10^{-5}$

BG $\alpha$ 5.8 35

a_- 21 Å 29 Å

Y $3.5\times 10^{-4}$ $4.7\times 10^{-4}$

**Table 5:** Range of reliability of the physical parameters of the grains (from errors in the fitting and variations in the assumed geometry).
	Lower limit	Upper limit
PAH	Y	0	$1.0\times 10^{-6}$
VSG	$\alpha$	2.6	5.2
	a₊	35 Å	120 Å
	Y	$1.3\times 10^{-5}$	$2.3\times 10^{-5}$
BG	$\alpha$	5.8	35
	a_-	21 Å	29 Å
	Y	$3.5\times 10^{-4}$	$4.7\times 10^{-4}$

Source LaTeX | All tables | In the text