Table A.1: Absorption features in the UV spectra (Fig. A.1) of some PMS Ae/Fe stars, SX Cas, U Cep and $\sigma $ Cyg. (n = narrow, b = broad, d = deep, s = shallow, e = emission instead of absorption, : = uncertain value.)
$\lambda$ Ion $\sigma $ V380 +46$^\circ $ NX HK RR SX U
(Å) - Cyg Ori 3471 Pup Ori Tau Cas Cep
1260 Si II nd b b b b nd b nd
  + S I -        
1304 O I bd bd bd bs e bd bd bd
  + Si II -        
1335 C II e: e: e: e - e: e: e:
1370 Si III bd nd bs bs - bs bd bd
1412 Si III bd s bs nd bd nd bd bd
1430 C III nd bs b n e n bd nd
  + S I -        
1470 Si II bd bs bd bs bs nd bd bs
  + Fe II -        
1510 Si II ns ns bs nd ns nd nd ns
  + S II -        
1565 Al II bd bd bd bd - bd bd bd
  + Fe II + C I -        
1630 Al III - bd bd bd e bd bd bs
  + Mg I: -        
1715 Al II: bd bd bd bd bs bd bs bd
1860 Al III bd bd bd bd - - ns bd
  + Fe III -        

Source LaTeX | All tables | In the text