Table 1: Atomic parameters of the observed lines. $\lambda _0$ is the laboratory central wavelength, $\chi _\ell$ the excitation potential of the lower level, and $\log gf$ the logarithm of the oscillator strength times the multiplicity of the level. The parameters $\alpha$ and $\sigma$ (in units of Bohr's radius, a₀) are used to calculate the broadening of the lines by collisions with neutral hydrogen atoms. The last column gives the effective Landé factor of the transition. Oscillator strengths are from Borrero et al. (2003a).
Line $\lambda _0$ $\chi _\ell$ log gf $\alpha$ $\sigma$ $g_{\rm eff}$

(nm) (eV) (dex) (a₀²)

Fe I 1564.7410 6.33 -0.95 - - 1.25

Fe I 1564.8515 5.43 -0.67 0.229 977 3.00

Fe I 1565.2874 6.25 -0.04 0.330 1445 1.45

**Table 1:** Atomic parameters of the observed lines. $\lambda _0$ is the laboratory central wavelength, $\chi _\ell$ the excitation potential of the lower level, and $\log gf$ the logarithm of the oscillator strength times the multiplicity of the level. The parameters $\alpha$ and $\sigma$ (in units of Bohr's radius, a₀) are used to calculate the broadening of the lines by collisions with neutral hydrogen atoms. The last column gives the effective Landé factor of the transition. Oscillator strengths are from Borrero et al. (2003a).
Line	$\lambda _0$	$\chi _\ell$	log gf	$\alpha$	$\sigma$	$g_{\rm eff}$
	(nm)	(eV)	(dex)		(a₀²)
Fe I	1564.7410	6.33	-0.95	-	-	1.25
Fe I	1564.8515	5.43	-0.67	0.229	977	3.00
Fe I	1565.2874	6.25	-0.04	0.330	1445	1.45

Source LaTeX | All tables | In the text