Table 5: Equivalent width measurements (in Å) corresponding to the 9 DBs analysed in our sample of post-AGB stars.
  EW (Å)
IRAS name 5780     5797      5850      6196      6284     6379     6614     6993     7224    
01005+7910 0.08 $\pm$ 0.04 0.021 $\pm$ 0.009 $\le$0.01 0.029 $\pm$ 0.009 0.18 $\pm$ 0.09 0.025 $\pm$ 0.009 0.045 $\pm$ 0.009 0.034 $\pm$ 0.009 $\le$0.01
02229+6208 0.18 $\pm$ 0.06 0.043 $\pm$ 0.009 ? 0.076 $\pm$ 0.009 0.87 $\pm$ 0.09 0.053 $\pm$ 0.009 ? 0.012 $\pm$ 0.009 ?
04296+3429 0.20 $\pm$ 0.06 $\le$0.03 - ? 0.66 $\pm$ 0.08 0.058 $\pm$ 0.009 0.16 $\pm$ 0.01 - ?
05113+1347 0.27 $\pm$ 0.06 $\le$0.04 ? ? ? ? 0.045 $\pm$ 0.009 - $\le$0.02
05251-1244 0.09 $\pm$ 0.03 0.028 $\pm$ 0.009 0.012 $\pm$ 0.009 0.006 $\pm$ 0.009 0.28 $\pm$ 0.08 0.023 $\pm$ 0.009 0.014 $\pm$ 0.009 $\le$0.04 $\le$0.02
05341+0852 $\le$0.06 $\le$0.04 - ? ? 0.052 $\pm$ 0.009 ? 0.050 $\pm$ 0.009 0.12 $\pm$ 0.02
06530-0213 - - ? ? 1.69 $\pm$ 0.08 0.020 $\pm$ 0.006 0.556 $\pm$ 0.008 - -
07134+1005 0.039 $\pm$ 0.006 0.014 $\pm$ 0.004 0.011 $\pm$ 0.004 ? $\le$0.09 $\le$0.003 0.112 $\pm$ 0.009 - $\le$0.01
08005-2356 $\le$0.04 0.035 $\pm$ 0.009 0.024 $\pm$ 0.009 $\le$0.01 ? $\le$0.009 $\le$0.01 $\le$0.02 ?
08143-4406 - - 0.045 $\pm$ 0.004 $\le$0.005 1.23 $\pm$ 0.03 0.052 $\pm$ 0.002 0.228 $\pm$ 0.005 0.061 $\pm$ 0.008 0.202 $\pm$ 0.009
08544-4431 0.37 $\pm$ 0.01 ? 0.048 $\pm$ 0.004 0.014 $\pm$ 0.004 0.58 $\pm$ 0.03 0.072 $\pm$ 0.004 0.170 $\pm$ 0.003 0.072 $\pm$ 0.006 0.161 $\pm$ 0.007
12175-5338 0.12 $\pm$ 0.01 0.014 $\pm$ 0.006 0.017 $\pm$ 0.005 0.026 $\pm$ 0.004 0.29 $\pm$ 0.02 $\le$0.004 0.034 $\pm$ 0.004 - $\le$0.008
16594-4656 - - 0.075 $\pm$ 0.007 0.057 $\pm$ 0.005 1.19 $\pm$ 0.04 0.082 $\pm$ 0.006 0.204 $\pm$ 0.007 0.072 $\pm$ 0.008 0.164 $\pm$ 0.007
17086-2403 0.29 $\pm$ 0.07 $\le$$\pm$0.06 $\le$0.04 $\le$0.02 $\le$0.1 $\le$0.04 0.04 $\pm$ 0.03 $\le$0.1 $\le$0.05
17097-3210 - - 0.030 $\pm$ 0.006 0.019 $\pm$ 0.004 0.13 $\pm$ 0.04 0.041 $\pm$ 0.004 0.079 $\pm$ 0.005 0.050 $\pm$ 0.006 0.107 $\pm$ 0.006
17150-3224 - - 0.023 $\pm$ 0.007 ? 1.10 $\pm$ 0.06 0.027 $\pm$ 0.007 0.200 $\pm$ 0.006 0.086 $\pm$ 0.009 0.327 $\pm$ 0.007
17245-3951 - - $\le$0.007 ? 0.93 $\pm$ 0.06 0.025 $\pm$ 0.006 0.065 $\pm$ 0.009 0.055 $\pm$ 0.008 0.190 $\pm$ 0.007
17395-0841 0.20 $\pm$ 0.07 0.07 $\pm$ 0.03 $\le$0.03 0.06 $\pm$ 0.03 0.65 $\pm$ 0.09 0.040 $\pm$ 0.009 0.20 $\pm$ 0.02 $\le$0.06 0.165 $\pm$ 0.065
17423-1755 0.40 $\pm$ 0.04 0.05 $\pm$ 0.03 $\le$0.06 0.027 $\pm$ 0.009 ? $\le$0.03 0.12 $\pm$ 0.02 $\le$0.08 ?
17436+5003 ? $\le$0.003 0.007 $\pm$ 0.003 0.005 $\pm$ 0.003 $\le$0.02 0.010 $\pm$ 0.003 ? - ?
18025-3906 0.034 $\pm$ 0.009 0.058 $\pm$ 0.009 $\le$0.02 $\le$0.005 $\le$0.05 0.020 $\pm$ 0.006 0.085 $\pm$ 0.007 0.032 $\pm$ 0.009 ?
18062+2410 ? 0.02 0.03 $\pm$ 0.02 $\le$0.01 $\le$0.01 $\le$0.04 $\le$0.01 $\le$0.01 0.034 $\pm$ 0.009 $\le$0.04
HD 172324 0.068 $\pm$ 0.004 0.049 $\pm$ 0.004 ? $\le$0.002 $\le$0.02 $\le$0.004 $\le$0.006 $\le$0.01 $\le$0.007
19114+0002 0.29 $\pm$ 0.03 $\le$0.02 0.063 $\pm$ 0.004 0.033 $\pm$ 0.003 0.33 $\pm$ 0.07 0.046 $\pm$ 0.002 ? 0.059 $\pm$ 0.006 0.105 $\pm$ 0.006
19200+3457 ? ? ? ? ? ? ? ? $\le$0.07
19386+0155 - - - 0.042 $\pm$ 0.004 0.44 $\pm$ 0.04 0.062 $\pm$ 0.006 0.138 $\pm$ 0.009 0.075 $\pm$ 0.009 0.134 $\pm$ 0.008
19500-1709 0.058 $\pm$ 0.006 0.046 $\pm$ 0.004 $\le$0.003 0.025 $\pm$ 0.002 0.23 $\pm$ 0.02 0.009 $\pm$ 0.004 0.069 $\pm$ 0.004 - 0.040 $\pm$ 0.007
20000+3239 0.50 $\pm$ 0.03 ? ? 0.074 $\pm$ 0.009 1.63 $\pm$ 0.09 0.026 $\pm$ 0.009 ? - 0.32 $\pm$ 0.02
20462+3416 0.16 $\pm$ 0.02 0.063 $\pm$ 0.009 0.030 $\pm$ 0.009 0.034 $\pm$ 0.007 0.59 $\pm$ 0.04 0.038 $\pm$ 0.009 0.109 $\pm$ 0.009 - 0.06 $\pm$ 0.02
22023+5249 0.38 $\pm$ 0.02 0.10 $\pm$ 0.02 0.013 $\pm$ 0.009 0.051 $\pm$ 0.007 0.85 $\pm$ 0.07 0.019 $\pm$ 0.009 0.130 $\pm$ 0.009 0.041 $\pm$ 0.009 0.12 $\pm$ 0.02
22223+4327 0.035 $\pm$ 0.009 ? ? $\le$0.005 0.27 $\pm$ 0.03 0.005 $\pm$ 0.006 ? - ?
22272+5435 ? ? ? $\le$0.02 ? $\le$0.04 ? - ?
23304+6147 0.37 $\pm$ 0.02 ? ? 0.110 $\pm$ 0.009 0.90 $\pm$ 0.07 0.044 $\pm$ 0.009 ? - ?

?: Contamination by atmospheric stellar lines or poor S/N; -: spectral range not covered.

Source LaTeX | All tables | In the text