Table 1.

Table of stellar properties for all 35 stars in our programme. Stars that were found to be non-members using the criteria specified in Section 3 are indicated. The faintest stars 220, 285, and 791 are excluded from our analysis due either to their low S/N and the presence of artefacts/defects within the molecular spectra.

Stellar properties
StarRADec.VTeffeTefflog(g)elog(g)[C/Fe]e[C/Fe][N/Fe]e[N/Fe]CNeCNCHeCHCa(HK)eCaFeeFeRVNotes
(degrees)(degrees)(mag)(K)(K)(dex)(dex)(dex)(dex)(dex)(dex)(mag)(mag)(mag)(mag)(mag)(mag)(mag)(mag)(km s−1)
2256.135 502−72.824 5719.994837902.40.2−0.380.21−0.620.27−0.1620.042−0.4070.05925.7736.265−0.1650.03123.01P
4196.298 478−72.856 2320.164607782.40.2−0.340.19−0.570.27−0.2060.032−0.3650.10617.18111.652−0.1530.02122.11P
5996.225 902−72.847 9620.395000982.70.2−0.510.200.030.27−0.2720.047−0.3610.08823.9157.979−0.1720.02115.31P
15176.292 014−72.8125520.424907932.70.2−0.290.190.340.260.0040.075−0.3270.07920.3429.493−0.1910.03142.12P
19036.267 869−72.8096620.464980972.70.2−0.730.200.480.26−0.0560.041−0.4740.05220.3529.258−0.1660.03141.92P
23496.115 903−72.8064520.154791872.50.2−0.370.19−0.050.26−0.1270.043−0.3800.06825.0768.199−0.1760.03140.31P
26806.156 927−72.8042320.144814882.50.2−0.350.21−0.790.28−0.1020.063−0.3750.06322.2079.929−0.1760.03141.61P
31306.231 442−72.8010319.914883922.40.2−0.510.190.120.26−0.1260.038−0.4280.05217.6375.127−0.1910.03131.31P
35466.219 912−72.7980720.084747852.40.2−0.590.210.700.270.0910.088−0.4120.07221.4876.405−0.1530.03130.22P
39106.219 479−72.7956619.984814882.40.2−0.330.210.410.270.0140.055−0.3770.06823.8896.953−0.1760.03145.42P
51746.245 548−72.7861719.954791872.40.2−0.520.21−0.100.27−0.1430.037−0.3850.05722.2415.330−0.1740.03141.21P
61306.175 249−72.7792620.184837902.50.2−0.370.21−0.020.27−0.1070.063−0.4080.07622.8678.077−0.1940.03151.31P
64636.248 931−72.7765820.264791872.50.2−0.240.21−0.490.28−0.1560.048−0.3910.07220.1588.311−0.1730.03148.21P
68626.206 618−72.7733919.904769862.30.2−0.530.210.530.270.0790.062−0.4040.06524.8038.432−0.1710.03159.92P
72936.236 802−72.7697220.014683822.30.2−0.410.21−0.290.27−0.1530.058−0.3730.05927.0819.327−0.1770.03141.21P
79636.302 150−72.7623820.044883922.50.2−0.350.20−0.270.27−0.1960.036−0.4040.06820.2087.894−0.2060.03148.31P
2206.271 843−72.8660521.18145.8Member
2856.260 201−72.8633120.76106.1Member
7916.207 983−72.8382019.72107.4Member
1296.112 807−72.8715720.95118.9Field
1766.293 897−72.8689620.57130.9Field
2866.143 601−72.8748919.57217.5Field
3296.066 787−72.8608320.7689.5Field
5146.260 530−72.8212520.09174.8Field
6516.227 692−72.8457319.9190.6Field
7156.247 569−72.8416821.1295.5Field
8256.213 307−72.8184120.57112.0Field
8426.241 302−72.8354120.4695.0Field
9056.257 216−72.8327020.73152.2Field
12016.194 623−72.8150120.8394.3Field
42816.236 492−72.7930620.6694.8Field
45426.272 315−72.7908420.11176.8Field
48736.270 678−72.7885120.92138.4Field
56976.220 817−72.7824620.28213.6Field
76046.231 820−72.7664520.23166.7Field
Stellar properties
StarRADec.VTeffeTefflog(g)elog(g)[C/Fe]e[C/Fe][N/Fe]e[N/Fe]CNeCNCHeCHCa(HK)eCaFeeFeRVNotes
(degrees)(degrees)(mag)(K)(K)(dex)(dex)(dex)(dex)(dex)(dex)(mag)(mag)(mag)(mag)(mag)(mag)(mag)(mag)(km s−1)
2256.135 502−72.824 5719.994837902.40.2−0.380.21−0.620.27−0.1620.042−0.4070.05925.7736.265−0.1650.03123.01P
4196.298 478−72.856 2320.164607782.40.2−0.340.19−0.570.27−0.2060.032−0.3650.10617.18111.652−0.1530.02122.11P
5996.225 902−72.847 9620.395000982.70.2−0.510.200.030.27−0.2720.047−0.3610.08823.9157.979−0.1720.02115.31P
15176.292 014−72.8125520.424907932.70.2−0.290.190.340.260.0040.075−0.3270.07920.3429.493−0.1910.03142.12P
19036.267 869−72.8096620.464980972.70.2−0.730.200.480.26−0.0560.041−0.4740.05220.3529.258−0.1660.03141.92P
23496.115 903−72.8064520.154791872.50.2−0.370.19−0.050.26−0.1270.043−0.3800.06825.0768.199−0.1760.03140.31P
26806.156 927−72.8042320.144814882.50.2−0.350.21−0.790.28−0.1020.063−0.3750.06322.2079.929−0.1760.03141.61P
31306.231 442−72.8010319.914883922.40.2−0.510.190.120.26−0.1260.038−0.4280.05217.6375.127−0.1910.03131.31P
35466.219 912−72.7980720.084747852.40.2−0.590.210.700.270.0910.088−0.4120.07221.4876.405−0.1530.03130.22P
39106.219 479−72.7956619.984814882.40.2−0.330.210.410.270.0140.055−0.3770.06823.8896.953−0.1760.03145.42P
51746.245 548−72.7861719.954791872.40.2−0.520.21−0.100.27−0.1430.037−0.3850.05722.2415.330−0.1740.03141.21P
61306.175 249−72.7792620.184837902.50.2−0.370.21−0.020.27−0.1070.063−0.4080.07622.8678.077−0.1940.03151.31P
64636.248 931−72.7765820.264791872.50.2−0.240.21−0.490.28−0.1560.048−0.3910.07220.1588.311−0.1730.03148.21P
68626.206 618−72.7733919.904769862.30.2−0.530.210.530.270.0790.062−0.4040.06524.8038.432−0.1710.03159.92P
72936.236 802−72.7697220.014683822.30.2−0.410.21−0.290.27−0.1530.058−0.3730.05927.0819.327−0.1770.03141.21P
79636.302 150−72.7623820.044883922.50.2−0.350.20−0.270.27−0.1960.036−0.4040.06820.2087.894−0.2060.03148.31P
2206.271 843−72.8660521.18145.8Member
2856.260 201−72.8633120.76106.1Member
7916.207 983−72.8382019.72107.4Member
1296.112 807−72.8715720.95118.9Field
1766.293 897−72.8689620.57130.9Field
2866.143 601−72.8748919.57217.5Field
3296.066 787−72.8608320.7689.5Field
5146.260 530−72.8212520.09174.8Field
6516.227 692−72.8457319.9190.6Field
7156.247 569−72.8416821.1295.5Field
8256.213 307−72.8184120.57112.0Field
8426.241 302−72.8354120.4695.0Field
9056.257 216−72.8327020.73152.2Field
12016.194 623−72.8150120.8394.3Field
42816.236 492−72.7930620.6694.8Field
45426.272 315−72.7908420.11176.8Field
48736.270 678−72.7885120.92138.4Field
56976.220 817−72.7824620.28213.6Field
76046.231 820−72.7664520.23166.7Field
Table 1.

Table of stellar properties for all 35 stars in our programme. Stars that were found to be non-members using the criteria specified in Section 3 are indicated. The faintest stars 220, 285, and 791 are excluded from our analysis due either to their low S/N and the presence of artefacts/defects within the molecular spectra.

Stellar properties
StarRADec.VTeffeTefflog(g)elog(g)[C/Fe]e[C/Fe][N/Fe]e[N/Fe]CNeCNCHeCHCa(HK)eCaFeeFeRVNotes
(degrees)(degrees)(mag)(K)(K)(dex)(dex)(dex)(dex)(dex)(dex)(mag)(mag)(mag)(mag)(mag)(mag)(mag)(mag)(km s−1)
2256.135 502−72.824 5719.994837902.40.2−0.380.21−0.620.27−0.1620.042−0.4070.05925.7736.265−0.1650.03123.01P
4196.298 478−72.856 2320.164607782.40.2−0.340.19−0.570.27−0.2060.032−0.3650.10617.18111.652−0.1530.02122.11P
5996.225 902−72.847 9620.395000982.70.2−0.510.200.030.27−0.2720.047−0.3610.08823.9157.979−0.1720.02115.31P
15176.292 014−72.8125520.424907932.70.2−0.290.190.340.260.0040.075−0.3270.07920.3429.493−0.1910.03142.12P
19036.267 869−72.8096620.464980972.70.2−0.730.200.480.26−0.0560.041−0.4740.05220.3529.258−0.1660.03141.92P
23496.115 903−72.8064520.154791872.50.2−0.370.19−0.050.26−0.1270.043−0.3800.06825.0768.199−0.1760.03140.31P
26806.156 927−72.8042320.144814882.50.2−0.350.21−0.790.28−0.1020.063−0.3750.06322.2079.929−0.1760.03141.61P
31306.231 442−72.8010319.914883922.40.2−0.510.190.120.26−0.1260.038−0.4280.05217.6375.127−0.1910.03131.31P
35466.219 912−72.7980720.084747852.40.2−0.590.210.700.270.0910.088−0.4120.07221.4876.405−0.1530.03130.22P
39106.219 479−72.7956619.984814882.40.2−0.330.210.410.270.0140.055−0.3770.06823.8896.953−0.1760.03145.42P
51746.245 548−72.7861719.954791872.40.2−0.520.21−0.100.27−0.1430.037−0.3850.05722.2415.330−0.1740.03141.21P
61306.175 249−72.7792620.184837902.50.2−0.370.21−0.020.27−0.1070.063−0.4080.07622.8678.077−0.1940.03151.31P
64636.248 931−72.7765820.264791872.50.2−0.240.21−0.490.28−0.1560.048−0.3910.07220.1588.311−0.1730.03148.21P
68626.206 618−72.7733919.904769862.30.2−0.530.210.530.270.0790.062−0.4040.06524.8038.432−0.1710.03159.92P
72936.236 802−72.7697220.014683822.30.2−0.410.21−0.290.27−0.1530.058−0.3730.05927.0819.327−0.1770.03141.21P
79636.302 150−72.7623820.044883922.50.2−0.350.20−0.270.27−0.1960.036−0.4040.06820.2087.894−0.2060.03148.31P
2206.271 843−72.8660521.18145.8Member
2856.260 201−72.8633120.76106.1Member
7916.207 983−72.8382019.72107.4Member
1296.112 807−72.8715720.95118.9Field
1766.293 897−72.8689620.57130.9Field
2866.143 601−72.8748919.57217.5Field
3296.066 787−72.8608320.7689.5Field
5146.260 530−72.8212520.09174.8Field
6516.227 692−72.8457319.9190.6Field
7156.247 569−72.8416821.1295.5Field
8256.213 307−72.8184120.57112.0Field
8426.241 302−72.8354120.4695.0Field
9056.257 216−72.8327020.73152.2Field
12016.194 623−72.8150120.8394.3Field
42816.236 492−72.7930620.6694.8Field
45426.272 315−72.7908420.11176.8Field
48736.270 678−72.7885120.92138.4Field
56976.220 817−72.7824620.28213.6Field
76046.231 820−72.7664520.23166.7Field
Stellar properties
StarRADec.VTeffeTefflog(g)elog(g)[C/Fe]e[C/Fe][N/Fe]e[N/Fe]CNeCNCHeCHCa(HK)eCaFeeFeRVNotes
(degrees)(degrees)(mag)(K)(K)(dex)(dex)(dex)(dex)(dex)(dex)(mag)(mag)(mag)(mag)(mag)(mag)(mag)(mag)(km s−1)
2256.135 502−72.824 5719.994837902.40.2−0.380.21−0.620.27−0.1620.042−0.4070.05925.7736.265−0.1650.03123.01P
4196.298 478−72.856 2320.164607782.40.2−0.340.19−0.570.27−0.2060.032−0.3650.10617.18111.652−0.1530.02122.11P
5996.225 902−72.847 9620.395000982.70.2−0.510.200.030.27−0.2720.047−0.3610.08823.9157.979−0.1720.02115.31P
15176.292 014−72.8125520.424907932.70.2−0.290.190.340.260.0040.075−0.3270.07920.3429.493−0.1910.03142.12P
19036.267 869−72.8096620.464980972.70.2−0.730.200.480.26−0.0560.041−0.4740.05220.3529.258−0.1660.03141.92P
23496.115 903−72.8064520.154791872.50.2−0.370.19−0.050.26−0.1270.043−0.3800.06825.0768.199−0.1760.03140.31P
26806.156 927−72.8042320.144814882.50.2−0.350.21−0.790.28−0.1020.063−0.3750.06322.2079.929−0.1760.03141.61P
31306.231 442−72.8010319.914883922.40.2−0.510.190.120.26−0.1260.038−0.4280.05217.6375.127−0.1910.03131.31P
35466.219 912−72.7980720.084747852.40.2−0.590.210.700.270.0910.088−0.4120.07221.4876.405−0.1530.03130.22P
39106.219 479−72.7956619.984814882.40.2−0.330.210.410.270.0140.055−0.3770.06823.8896.953−0.1760.03145.42P
51746.245 548−72.7861719.954791872.40.2−0.520.21−0.100.27−0.1430.037−0.3850.05722.2415.330−0.1740.03141.21P
61306.175 249−72.7792620.184837902.50.2−0.370.21−0.020.27−0.1070.063−0.4080.07622.8678.077−0.1940.03151.31P
64636.248 931−72.7765820.264791872.50.2−0.240.21−0.490.28−0.1560.048−0.3910.07220.1588.311−0.1730.03148.21P
68626.206 618−72.7733919.904769862.30.2−0.530.210.530.270.0790.062−0.4040.06524.8038.432−0.1710.03159.92P
72936.236 802−72.7697220.014683822.30.2−0.410.21−0.290.27−0.1530.058−0.3730.05927.0819.327−0.1770.03141.21P
79636.302 150−72.7623820.044883922.50.2−0.350.20−0.270.27−0.1960.036−0.4040.06820.2087.894−0.2060.03148.31P
2206.271 843−72.8660521.18145.8Member
2856.260 201−72.8633120.76106.1Member
7916.207 983−72.8382019.72107.4Member
1296.112 807−72.8715720.95118.9Field
1766.293 897−72.8689620.57130.9Field
2866.143 601−72.8748919.57217.5Field
3296.066 787−72.8608320.7689.5Field
5146.260 530−72.8212520.09174.8Field
6516.227 692−72.8457319.9190.6Field
7156.247 569−72.8416821.1295.5Field
8256.213 307−72.8184120.57112.0Field
8426.241 302−72.8354120.4695.0Field
9056.257 216−72.8327020.73152.2Field
12016.194 623−72.8150120.8394.3Field
42816.236 492−72.7930620.6694.8Field
45426.272 315−72.7908420.11176.8Field
48736.270 678−72.7885120.92138.4Field
56976.220 817−72.7824620.28213.6Field
76046.231 820−72.7664520.23166.7Field
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