Table 2.
Spectroscopic parameters of the sample derived from model spectra, as appropriate for their classification (MS or BHB candidate, respectively).
| Short name | S/N | Teff | log g | vrad | E(44 − 55) | MS |
|---|---|---|---|---|---|---|
| (K) | log(cm s−2) | (km s−1) | (mag) | |||
| 0035−5900 | 180 | 8900 | 3.19 | 141 ± 31 | 0.02 ± 0.02 | ✓✗ |
| 0037−6154 | 230 | 11 900 | 4.05 | 138 ± 26 | < 0.01 | ✓ |
| 0038−6612 | 220 | 8900 | 3.18 | 233 ± 26 | < 0.01 | ✗ |
| 0039−4201 | 220 | 10 300 | 3.58 | 144 ± 25 | < 0.02 | ✗ |
| 0049−5356 | 240 | 9300 | 3.42 | −109 ± 26 | < 0.02 | ✗ |
| 0122−6759 | 140 | 12 800 | 3.91 | 272 ± 27 | < 0.01 | ✗ |
| 0205−5938 | 380 | 12 300 | 3.81 | 109 ± 27 | 0.00 | ✓ |
| 0245−3418 | 370 | 9300 | 3.47 | 123 ± 28 | < 0.06 | ✗ |
| 0259−1705 | 370 | 12 100 | 4.07 | 185 ± 26 | 0.04 ± 0.02 | ✓ |
| 1621−8350 (a) | 210 | 29 400 | 4.00 | 115 ± 39 | 0.08 ± 0.02 | ✗ |
| 1715+2341 | 190 | 12 700 | 3.83 | 1 ± 26 | 0.04 ± 0.02 | ✗ |
| 1839−7515 | 50 | 18 100 | 4.53 | 65 ± 26 | 0.12 ± 0.03 | ✗ |
| 1851−5036 | 120 | 10 500 | 3.38 | −28 ± 26 | 0.05 ± 0.03 | ✗ |
| 1900−7032 | 340 | 9800 | 3.58 | −46 ± 28 | 0.05 ± 0.04 | ✓✗ |
| 1900−7033 | 250 | 16 800 | 4.19 | −38 ± 26 | 0.02 ± 0.02 | ✓ |
| 1919−5938 | 160 | 10 300 | 3.61 | −88 ± 25 | 0.06 ± 0.04 | ✗ |
| 1939−1640 | 200 | 18 300 | 4.20 | 224 ± 26 | 0.12 ± 0.01 | ✓ |
| 1944−4628 (a)(b) | 260 | 22 300 | 4.02 | 261 ± 26 | 0.16 ± 0.02 | ✗ |
| 2019−7107 | 320 | 10 100 | 3.60 | 109 ± 26 | 0.05 ± 0.03 | ✓✗ |
| 2024−2725 | 180 | 10 700 | 3.67 | 123 ± 26 | 0.05 ± 0.03 | ✗ |
| 2028−2218 | 380 | 10 000 | 2.84 | 79 ± 25 | 0.05 ± 0.03 | ✗ |
| 2034−1108 | 250 | 12 400 | 4.00 | −74 ± 28 | 0.02 ± 0.02 | ✓ |
| 2034−5307 | 280 | 9800 | 3.61 | 123 ± 28 | 0.04 ± 0.03 | ✓ |
| 2054−2526 | 220 | 16 000 | 3.97 | 65 ± 26 | 0.05 ± 0.02 | ✓ |
| 2110−2700 | 270 | 9800 | 3.48 | −3 ± 33 | 0.06 ± 0.03 | ✗ |
| 2114−6438 | 160 | 10 400 | 3.53 | 17 ± 28 | 0.02 ± 0.02 | ✗ |
| 2119−4827 | 120 | 10 400 | 3.16 | 27 ± 25 | 0.10 ± 0.03 | ✗ |
| 2125−4834 | 230 | 10 000 | 3.61 | 8 ± 26 | 0.04 ± 0.03 | ✗ |
| 2145−3022 | 280 | 9700 | 3.53 | 179 ± 27 | 0.04 ± 0.04 | ✗ |
| 2207−2645 | 340 | 12 200 | 3.78 | 51 ± 26 | 0.02 ± 0.02 | ✓ |
| 2207−4329 | 150 | 9700 | 3.62 | −170 ± 26 | 0.02 ± 0.02 | ✓ |
| 2207−5021 | 190 | 9800 | 3.61 | 75 ± 26 | 0.03 ± 0.03 | ✗ |
| 2208−6026 | 250 | 12 000 | 3.76 | 356 ± 25 | < 0.03 | ✗ |
| 2213−4357 | 250 | 12 100 | 3.67 | 64 ± 29 | < 0.01 | ✗ |
| 2214−4620 | 160 | 10 400 | 3.62 | 112 ± 26 | 0.01 ± 0.01 | ✗ |
| 2239−2455 | 320 | 12 700 | 3.83 | −43 ± 29 | < 0.01 | ✗ |
| 2250−5625 | 220 | 8800 | 3.20 | 118 ± 26 | < 0.01 | ✗ |
| 2259−4931 | 250 | 9200 | 4.16 | 244 ± 27 | < 0.01 | ✓ |
| 2307−3157 | 320 | 11 100 | 3.94 | −2 ± 29 | 0.01 ± 0.01 | ✓ |
| 2313−4858 | 210 | 8700 | 3.22 | −183 ± 29 | < 0.01 | ✗ |
| 2348−6612 | 130 | 10000 | 3.51 | 225 ± 26 | < 0.04 | ✗ |
| 2040−2336 | 260 | 10 200 | 3.92 | 56 ± 26 | 0.05 ± 0.03 | |
| 2058−5407 | 300 | 9700 | 3.60 | −8 ± 30 | 0.06 ± 0.03 | |
| 2103−5815 | 300 | 10 000 | 3.60 | 121 ± 27 | 0.03 ± 0.03 | |
| 2127−6300 | 220 | 9100 | 3.26 | 99 ± 26 | < 0.03 | |
| 2304−4021 | 300 | 8800 | 2.99 | 27 ± 27 | 0.00 | |
| 2309−5623 | 340 | 9900 | 3.21 | 186 ± 27 | 0.00 | |
| 2309−6729 | 290 | 9800 | 3.52 | 126 ± 32 | 0.02 ± 0.02 | |
Notes. Unclassified stars are listed at the bottom with their parameters, which were derived from models with a subsolar composition. Signal-to-noise ratio, effective temperature, surface gravity, radial velocity, interstellar reddening, and MS-candidate classification of the observed stars. Systematic uncertainties are on the order of 4% and 0.1 dex for Teff and log g, respectively.
This star is a hot evolved star (see Sect. 4.3); based on solar-metallicity models.
The result may be affected by the presence of an infrared excess (see Fig. 4).
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