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Table B.3.

Plausible origin of the observed narrow non-photospheric absorptions for each star.

Star Vrad VISM Ca II K/H Na I D2/D1 Origin


EW RV FWHM N EW RV FWHM N
(km s−1) (km s−1) (mÅ) (km s−1) (km s−1) (cm−2) (mÅ) (km s−1) (km s−1) (cm−2)
HD 256 −2.2 ± 0.3 3.16 (LIC) 190.9 ( * )/180.3 ( * ) −1.8/−0.82 10.67/11.05 4.88 × 1012 1.2/0.4 3.2/3.3 4.17/1.80 5.91 × 109 CS
−2.73 (Mic)
1.01 (Cet)
HD 2884 8.3 ± 1.6 13.85 (Dor) 2.1/1.66 0.5/4.3 12.13/7.1 4.28 × 1010 ?
2.46 (Vel)
HD 2885 13.5 ± 3.9 13.84 (Dor) 56.8/52.3 −2.0/−2.5 17.68/16.1 1.85 × 1012 ?
2.46 (Vel)
HD 3003 8.2 ± 2.3 13.84 (Dor) 4.5/< 1.5 0.6/− 24.55/− 4.82 × 1010 4.8/2.9 −3.7/−3.0 6.84/6.57 4.61 × 1010 ?
2.46 (Vel)
HD 5267 9.5 ± 1.8 11.44 (LIC) 11.4/5.1 −5.0/−5.1 6.86/5.47 1.22 × 1011 34.8/20.0 −5.4/−5.3 6.00/5.80 3.79 × 1011 ?
2.6/< 1.0 9.7/− 10.64/− 2.78 × 1010 1.2/< 1.0 11.7/− 12.8/− 1.53 × 1010
HD 9672 10.9 ± 2.5 11.01 (LIC) 10.6/6.0 13.5/12.9 7.4/7.1 1.83 × 1011 16.4/9.3 11.5/10.6 4.4/4.0 3.21 × 1011 CS+ISM
HD 16978 12.9 ± 1.8 2.65 (G) 4.9/1.6 11.6/10.8 10.57/7.98 5.24 × 1010 CS
5.19 (Cet)
8.66 (Vel)
HD 21688 15.2 ± 0.1 18.71 (LIC) 123.9 ( * )/99.84 15.7/17.9 13.92/13.45 2.61 × 1012 CS
HD 21620 −13.9 ± 0.3 18.52 (LIC) 12.4/6.7 4.0/3.9 5.67/5.50 3.65 × 1011 73.5/54.9 3.7/3.8 5.11/4.87 6.55 × 1011 CS+ISM
2.0/1.9 15.3/15.3 7.60/6.63 2.12 × 1011
HD 32297 21.0 ± 0.9 23.59 (LIC) 19.4/9.8 22.7/21.9 9.7/6.9 2.08 × 1011 93.0/84.0 19.7/20.8 6.69/6.23 1.05 × 1012 CS
HD 36546 14.7 ± 0.6 23.53 (LIC) 18.7/14.5 14.6/15.0 4.43/5.04 3.74 × 1011 24.3/13.9 14.1/14.33 4.01/4.02 2.56 × 1011 CS
10.9/4.0 18.7/20.8 7.40/8.67 1.28 × 1011 12.9/6.8 18.6/18.5 6.04/6.49 2.05 × 1010
HD 37306 25.1 ± 1.3 13.1/6.3 11.0/10.6 6.91/6.75 1.40 × 1011 4.6/2.23 10.6/10.7 6.41/5.22 2.27 × 1010 CS+ISM
31.6/19.3 32.3/32.5 8.71/9.39 3.38 × 1011 6.7/3.17 31.2/31.6 7.95/8.08 3.30 × 1010
HD 39182 −22.9 ± 1.0 21.62 (LIC) 19.6/14.5 13.3/13.3 6.70/8.81 3.81 × 1011 131.8/102.5 13.8/13.7 7.83/6.8 1.21 × 1012 CS
6.9/< 3.0 −21.8/− 5.92/− 7.28 × 1010
103.1 ( * )/67.1 −22.6/−18.3 55.43/36.49 1.92 × 1012
HD 42111 27.5 ± 1.9 24.83 (Aur) 318.3 ( * )/285.9 27.2/29.3 25.93/26.86 9.66 × 1012 61.8/43.5 23.2/23.5 5.23/5.14 5.40 × 1011 CS+ISM
113.7/55.9 27.0/27.8 58.67/52.84 5.60 × 1011
HD 50241 13.0 ± 2.9 6.81 (Blue) 8.4/4.0 15.6/16.8 16.25/8.92 9.35 × 1010 CS
17.9 (Cet)
15.34 (Vel)
HD 71043 24.1 ± 2.2 4.62 (G) 2.5/< 1.5 16.0/− 10.35/− 2.68 × 1010 1.9/0.99 17.5/17.3 5.66/5.47 4.33 × 1010 ISM
20.5 (Cet) 2.5/1.9 4.5/5.4 8.28/7.10 5.01 × 1010 2.9/0.88 5.3/5.1 10.47/5.88 1.43 × 1010
15.0 (Vel)
HD 71722 31.0 ± 2.6 4.19 (G) 7.9/3.2 11.8/11.0 16.49/16.45 8.46 × 1010 4.5/4.1 13.6/14.1 7.55/12.01 9.56 × 1010 ISM
19.65 (Cet)
14.33 (Vel)
HD 80007 0.8 ± 1.8 −2.75 (G) 1.5/< 1.0 1.3/− 8.2/− 1.51 × 1010 2.7/< 1.0 3.0/− 12.57/− 1.33 × 1010 CS
3.35 (Blue) 1.4/< 1.0 −11.6/− 7.04/− 6.90 × 109
HD 85905 9.9 ± 2.5 11.01 (G) 80.5 ( * )/75.3 16.2/18.5 58.25/56.35 4.29 × 1012 6.3/2.9 11.6/10.3 29.08/17.56 3.10 × 1010 CS+ISM
7.6/3.56 8.1/7.7 6.22/4.49 8.13 × 1010 13.4/6.5 7.9/8.1 5.52/5.23 6.60 × 1010
1.2/< 1.0 25.5/− 5.20/− 1.28 × 1010
HD 98058 0.7 ± 1.5 1.75 (Leo) 124.9 ( * )/94.4 −7.8/8.9 48.81/50.29 2.44 × 1012 CS
HD 105850 15.0 ± 3.6 2.54 (Gem) 15.3/4.6 −4.6/−5.1 10.35/7.19 1.64 × 1011 10.4/4.8 −6.5/−6.6 6.41/5.52 5.12 × 1010 ISM
−5.36 (Leo)
HD 108767 8.5 ± 1.1 0.21 (Gem) 3.4/1.6 −0.6/−0.8 5.59/6.19 3.64 × 1010 2.9/1.2 −0.3/0.2 4.80/4-48 1.43 × 1010 ISM
HD 109573 7.5 ± 2.0 2.1/< 1.0 −14.2/− 8.05/− 2.25 × 1010 8.3/3.8 −5.4/−4.8 8.49/7.38 4.09 × 1010 CS
2.3/1.1 −4.7/−6.0 7.80/6.62 2.46 × 1010
HD 110058 10.6 ± 2.6 −14.46 (G) 27.0/24.1 12.7/12.0 6.8/6.22 5.41 × 1011 46.0/39.1 12.5/12.4 6.31/6.57 1.98 × 1012 CS
19.9/10.0 1.2/1.8 12.6/13.4 1.21 × 1014 34.0/18.9 0.9/0.6 11.71/11.5 1.67 × 1011
HD 118232 −16.9 ± 0.4 −1.87 (NGP) 10.6/4.3 −6.7/−6.4 6.92/5.64 1.13 × 1011 3.9/1.9 −6.7/−5.9 6.19/584 1.92 × 1010 ISM
HD 125162 −10.1 ± 1.5 −6.64 (NGP) 1.9/< 1.0 17.8/− 3.41/− 9.36 × 109 ISM
HD 131488 4.8 ± 0.2 −23.91 (G) 23.0/8.7 −0.8/2.5 21.09/12.1 2.46 × 1011 33.5/30.1 5.4/5.7 6.18/6.03 4.83 × 1011 CS
7.3/< 5.0 −13.8/− 8.94/− 8.23 × 1010
HD 131835 2.7 ± 2.5 18.56 (Gem) 8.3/4.1 −14.5/−13.8 7.40/7.50 8.88 × 1010 41.0/32.0 −11.8/−12.4 11.52/11.73 4.34 × 1011 ?
−27.63 (NGP) 2.1/1.4 −5.9/−4.8 7.91/7.68 2.25 × 1010
0.7/< 0.1 2.2/− 2.3/− 7.49 × 109
HD 138629 −18.7 ± 1.1 −18.29 (NGP) 47.5/36.5 −13.8/−13.9 5.41/5.05 9.39 × 1011 14.7/5.8 −11.9/−11.3 4.95/4.22 7.24 × 1010 CS+ISM
53.4/32.8 −22.9/−22.8 8.20/7.77 1.07 × 1012 83.7/72.0 −21.6/−21.3 5.21/4.94 9.16 × 1011
105.8/84.8 −31.8/−31.8 8.71/8.29 2.18 × 1012 30.2/26.5 −16.7/−16.5 4.18/4.54 3.25 × 1011
HD 138813 0.3 ± 2.1 −27.82 (G) 5.6/1.4 −27.5/−27.8 18.70/6.87 5.99 × 1010 5.9/3.2 −22.2/−21.7 11.62 6.92 × 1010 ISM
−24.16 (Gem) 20.1/11.1 −12.1/−11.8 5.28 2.36 × 1011
−7.55/−5.2 0.2/0.6 10.04 6.59 × 1010
HD 142097 −7.0 ± 2.0 −28.67 (G) 24.2/14.0 −16.8/−15.4 8.41/8.50 5.32 × 1011 263.9/231.9 −16.7/−16.4 12.83/12.11 3.11 × 1012 ISM
82.9/59.8 −7.5/−6.8 6.78/6.20 7.32 × 1011
HD 142315 −4.0 ± 2.4 −28.64 (G) 35.1/18.3 −17.5/−18.1 19.01/19.18 1.27 × 1012 255.1/194.9 −13.2/−12.8 12.78/12.22 2.30 × 1012 ISM
1.1/0.6 −24.0/−23.6 2.41/2.37 2.94 × 1010 5.5/5.3 −16.9/−16.7 2.21/2.06 1.48 × 1011
HD 142705 −5.6 ± 3.0 −28.66 (G) 11.1/6.1 −30.8/−30.8 7.39/6.78 2.84 × 1011 19.7/12.6 −31.3/−31.1 4.9/4.71 1.77 × 1011 ISM
40.5/19.9 −17.1/17.2 12.45/11.15 4.33 × 1011 256.4/225.6 −16.2/−16.2 11.8/10.89 3.02 × 1012
HD 144587 −10.7 ± 4.7 −28.81 (G) 11.6/5.1 −7.4/−9.6 6.2/4.52 1.24 × 1011 122.4/97.7 −9.3/−9.4 7.75/7.43 1.16 × 1012 ISM
12.0/< 6.0 −20.7/− 8.5/− 1.28 × 1011 46.1/30.5 −22.3/−22.1 5.77/5.58 4.06 × 1011
HD 144981 −5.6 ± 4.3 −29.16 (G) 39.9/19.5 −8.7/−8.7 8.90/8.33 4.27 × 1011 215.7/184.6 −8.5/−8.1 10.59/9.45 2.31 × 1012 ISM
6.2/< 3.0 −27.9/− 10.68/− 6.64 × 1010
HD 145554 −7.8 ± 3.9 −29.2 (G) 5.6/< 3.0 −26.8/− 7.95/− 5.99 × 1010 46.2/32.9 −25.2/−25.0 4.50/4.5 4.04 × 1011 ISM
42.3/24.7 −9.8/−9.8 5.79/5.25 9.16 × 1011 154.3/138.3 −10.5/−10.1 7.45/6.94 2.02 × 1012
HD 145631 −5.7 ± 2.3 −29.21 (G) 35.1/24.9 −8.6/−8.7 5.14/4.46 6.68 × 1011 162.7/139.9 −9.5/−9.1 7.75/7.03 1.78 × 1012 ISM
9.8/< 1.8 −27.3/− 15.44/− 1.05 × 1011 28.7/17.6 −25.0/−24.7 4.51/4.66 2.70 × 1011
HD 145964 −6.8 ± 3.1 −29.14 (G) 9.9/2.5 −26.7/−26.5 12.38/7.00 1.06 × 1011 55.5/41.5 −22.5/−22.2 4.98/5.03 4.97 × 1011 CS
4.6/1.6 −9.4/−9.8 5.55/5.46 4.92 × 1010 60.6/45.3 −9.5/−9.3 4.98/4.92 5.42 × 1011
HD 145689 −7.1 ± 1.7 −17.21 (G) 4.1/< 0.5 −11.9/− 10.3/− 4.39 × 1010 CS
HD 146606 −2.3 ± 1.3 −28.52 (G) 7.5/< 2.5 −27.1/− 11.5/− 8.03 × 1010 9.8/5.9 −21.6/−21.7 7.82/9.23 1.57 × 1011 ISM
4.8/2.8 −7.8/−7.3 8.56/9.18 8.36 × 1010
HD 146897 −3.1 ± 0.9 −29.19 (G) 11.2/< 0.9 −8.3/− 5.36/− 1.20 × 1011 118.2/80.0 −9.4/−9.0 7.93/7.72 1.06 × 1012 ISM
5.5/< 0.9 −29.5/− 8.58/− 5.89 × 1010
HD 147137 −6.6 ± -1.9 −29.12 (G) 22.6/14.1 −8.5/−8.7 7.78/10.1 4.47 × 1011 154.4/145.1 −8.6/−8.3 8.34/8.42 5.00 × 1012 ISM
8.5/6.2 −23.7/−23.9 6.24/6.85 7.53 × 1010
HD 147220 −49.3 ± 2.0 −29.16 (G) 62.3/34.5 −19.1/−15.0 17.21/19.49 1.56 × 1012 59.5/34.8 −20.9/−20.6 11.76/12.1 5.93 × 1011 ISM
135.2/126.3 −8.9/−8.7 7.50/7.4 3.31 × 1012
HD 148283 −0.5 ± 0.2 −18.54 (NGP) 203.1 ( * )/198.2 ( * ) 1.3/1.6 91.50/90.12 1.47 × 1013 34.6/22.4 3.6/3.4 34.63/23.51 2.49 × 1010 CS
HD 156623 −0.2 ± 2.1 −24.89 (G) 9.0/3.7 −15.0/−16.4 18.72/8.79 9.63 × 1010 −10.6/−8.5 −1.8/0.5 13.66/17.66 1.01 × 1011 CS+ISM
4.3/> 2.0 8.1/− 6.00 4.60 × 1010
HD 158352 −33.9 ± 0.6 8.6/8.3 −24.7/−25.2 3.56/5.1 5.26 × 1012 14.5/7.8 −25.0/−24.9 4.43/4.37 1.96 × 1011 CS+ISM?
20.5/8.5 −28.9/−32.2 13.17/13.44 2.19 × 1011 3.8/1.9 −30.7/−30.0 10.46/9.92 3.14 × 1010
HD 168646 −10.8 ± 2.6 −31.44 (Aql) 315.4 ( * )/252.9 −7.3/−6.6 16.07/17.00 6.51 × 1012 156.6/154.5 −4.8/−4.5 8.98/8.59 2.40 × 1012 CS
7.7/< 3.0 11.1/− 11.51/− 3.79 × 1010
24.7/12.4 −21.1/−19.9 17.84/−14.77 1.36 × 1012
HD 172555 1.2 ± 2.9 −16.84 (G) 6.1/3.0 2.3/3.1 6.8/4.94 6.53 × 1010 8.0/< 1.0 15.4/− 28.03/− 3.94 × 1010 CS+ISM
1.5/< 1.0 −19.9/− 9.5/− 1.61 × 1010 3.2/1.78 −20.4/−20.3 9.78/8.88 3.60 × 1010
HD 177724 −27.3 ± 2.5 −21.03 (G) 3.4/1.9 −25.7/−25.6 15.02/15.2 8.25 × 1010 ?
−30.96 (Aql)
HD 181296 −5.0 ± 1.5 3.6/1.8 −22.7/−22.3 8.50/7.03 4.25 × 1011 2.6/1.5 −22.7/−21.9 7.11/8.83 2.60 × 1010 CS
HD 182919 −24.3 ± 1.4 −18.05 (G) 2.8/2.6 −18.5/−18.9 5.98/10.5 1.22 × 1011 1.8/0.7 −15.5/−15.5 7.13/5.81 8.87 × 109 CS+ISM
−24.21 (Mic)
−26.30 (Aql)
HD 188228 −6.0 ± 3.5 −12.18 (G) 1.3/< 0.5 −13.9/− 8.24/− 3.43 × 1010 3.2/< 1.5 −13.9/− 8.26/− 1.58 × 1010 ISM
−15.57 (Vel)
HD 192518 8.1 ± 0.3 −20.08 (Mic) 5.2/3.0 −13.9/−13.8 4.79/5.49 1.10 × 1011 39.3/26.8 −14.6/−14.5 4.64/4.54 3.44 × 1011 CS+ISM
−15.53 (Aql) 334.5 ( * )/332.6 11.9/11.6 23.8/21.10 1.21 × 1013
HD 196724 −10.8 ± 2.3 −13.52 (Eri) 4.3/1.4 −11.7/−12.5 5.03/4.62 3.10 × 1010 ?
−9.93 (Aql)
HD 198160 −16.2 ± 1.9 −17.42 (Vel) 3.9/< 1.5 −14.7/− 13.96/− 4.17 × 1010 1.2/< 0.5 −16.4/− 6.78/− 5.70 × 109 ISM
HD 198161 −13.5 ± 3.6 −17.41 (Vel) 3.8/< 1.5 −14.9/− 11.24/− 4.07 × 1010 3.4/1.0 −21.9/−18.7 18.48/3.8 1.67 × 1010 ISM
HD 210418 −5.1 ± 0.8 −5.49 (LIC) 3.0/< 1.5 −4.8/− 12.29/− 3.21 × 1010 ?
HD 217782 5.1 ± 1.1 7.63 (Hyades) 20.4/10.7 −9.2/−9.4 5.92/5.51 7.05 × 1011 53.9/36.1 −8.9/−8.6 4.80/4.64 4.75 × 1011 CS
11.0/5.5 −17.1/−17.0 7.58/7.04 1.18 × 1011 10.6/6.2 −16.4/−16.1 7.71/9.18 1.08 × 1011
5.5/2.2 5.2/5.3 10.55/7.6 5.89 × 1010
HD 221756 13.5 ± 0.3 5.88 (LIC) 6.3/2.63 −4.7/−4.8 6.12/5.92 6.74 × 1010 17.9/9.21 −2.6/−2.4 5.96/5.78 3.70 × 1012 ISM
9.00 (Hyades)
HD 224392 9.9 ± 2.3 −0.86 (Vel) 8.2/3.9 −1.5/−3.5 11.37/6.56 8.78 × 1010 2.9/1.6 −8.1/5.59 15.80/12.81 3.23 × 1010 ?

Notes. Equivalent widths (EW), radial velocities (RV), full width half maximum (FWHM), and column densities (N) are given for each absorption as estimated from the median spectra. Uncertainty estimates of these parameters are detailed in Sect. 4.1. as follows: 10% for EW and 2.5 and 1.5 km s−1 for RV and FWHM in the Ca and Na regime, respectively; and propagated errors of those values for N (approx. ∼10%). Radial velocities of the stars (vrad) and the radial velocity of the interstellar clouds (vISM), if present, are also given. The convention for the plausible origin is as follows. CS: circumstellar; ISM: interstellar medium; CS+ISM: both types of origins are plausible. A question mark indicates that the origin is ambiguous. Absorptions marked with an asterisk (*) in the EW are triangular shell-like absorptions.

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