**Table 2:** Comparison of transition isotope shift in Sm II, measured relative to ¹⁵⁴Sm.
Isotope	TIS (¹⁵⁴Sm- $^{\rm A}$ Sm)(cm^-1)
A	This work	Villemoes et al.

$\lambda_{\rm air}$ =	5052.751 Å	5786.98 Å
$E_{\rm upper}$ = 30879.740 cm^-1
148	0.311	0.312
150	0.219	0.214
152	0.072	0.071

$\lambda_{\rm air}$ =	5069.447 Å^a	5831.02 Å
$E_{\rm upper}$ = 29934.800 cm^-1
148	0.303	0.294
150	0.204	0.202
152	0.068	0.067

$\lambda_{\rm air}$ =	5103.086 Å	5897.39 Å & 5963.22 Å
$E_{\rm upper}$ = 28997.140 cm^-1
148	0.303	0.281 & 0.282
150	0.198	0.193 & 0.194
152	0.065	0.064 & 0.064

$\lambda_{\rm air}$ =	5104.472 Å	5965.7 Å
$E_{\rm upper}$ = 27631.180 cm^-1
148	0.276	0.267
150	0.207	0.183
152	0.060	0.061

^a Blended on low wavenumber side of profile.

Source LaTeX | All tables | In the text