Open Access

Table 1

Sample of stars.

Star RA Dec ga MJD VR σ VR σ [M/H] σ [Fe/H] σ
° ° SDSS SDSS

FORS
SDSS J001547.45+001326.6 3.9477144 +0.22406663 15.81 57953.33251196 − 20 2a − 10 20 − 0.75 0.24 − 0.70 0.17
SDSS J004036.97+002540.7 10.154042 +0.42797715 16.29 57953.37109608 + 82 3 + 92 19 − 1.99 0.22 − 1.99 0.21
SDSS J004252.51+005521.8 10.718813 +0.92273976 16.83 57956.28170347 − 256 4 − 270 29 − 1.70 0.24 − 1.65 0.13
SDSS J022226.20–031338.0 35.609189 –3.2272445 16.95 57956.32784048 − 124 3 − 90 32 − 2.22 0.49 − 2.63 0.24
SDSS J030929.93+054246.4 47.374692 +5.7129120 15.25 57966.32655116 − 82 2 − 57 35 − 0.96 0.26 − 0.96 0.16
SDSS J034635.17–055818.3 56.64657 –5.9717720 16.96 57973.36030252 + 19 2 + 32 27 − 1.20 0.26 − 0.85 0.19
SDSS J090536.50+033034.5 136.40208 +3.5096110 16.86 57852.99994682 + 272 4 + 295 21 − 2.19 1.03 − 3.12 0.21
SDSS J114932.51+072347.0 177.38547 +7.3963985 16.34 57953.98955476 − 15 3 − 33 34 − 2.88 0.15 − 2.82b: 0.40
SDSS J124841.09–072646.6 192.17123 –7.4462930 16.84 57845.30650769 − 7 3 − 45 26 − 1.28 0.45 − 1.64 0.39
SDSS J131550.68+172707.0 198.96119 +17.451962 16.12 57940.06317480 + 306 3 + 315 34 − 2.22 0.67 − 2.52 0.06
SDSS J133704.70+083523.4 204.26961 +8.5898340 16.06 57951.97732700 − 21 3 − 19 23 − 1.38 0.15 − 1.31 0.17
SDSS J133750.48+083610.8 204.46034 +8.6030160 16.72 57952.02268752 + 7 3 + 16 28 − 0.99 0.37 − 0.78 0.18
SDSS J133753.36+083734.2 204.47237 +8.6261760 15.78 57955.06167568 − 34 3 − 11 34 − 0.51 0.26 − 0.45 0.25
SDSS J133802.22+083056.2 204.50927 +8.5156120 16.93 57956.00287188 − 19 3 − 10 27 − 0.51 0.51 − 0.53 0.18
SDSS J134247.69+083521.0 205.69872 +8.5891910 15.54 57981.98808043 − 42 4 − 23 31 − 1.63 0.18 − 1.48 0.23
SDSS J134343.08+081029.3 205.92952 +8.1748110 14.92 57981.98808043 − 13 2 − 4 34 − 0.47 0.36 − 0.50 0.22
SDSS J134913.54–022942.8 207.30642 –2.4952258 16.64 57916.14995942 + 140 3 + 128 27 − 1.58 0.98 − 3.02b: 0.40
SDSS J141123.09+050345.6 212.84622 +5.0626727 16.03 57933.97656561 − 238 4 − 210 25 − 2.56 0.35 − 3.36 0.27
SDSS J144533.32–004559.0 221.38887 –0.7663930 15.32 57941.10539190 − 9 2 − 13 30 − 3.04 0.22 − 2.94 0.19
SDSS J144533.32–004559.0 221.38887 –0.7663930 15.32 57941.13882949 − 9 2 − 19 30 − 3.04 0.22 − 2.94 0.19
SDSS J154338.58+092904.9 235.91078 +9.4847057 16.04 57952.06105676 + 48 2 + 53 23 − 2.41 − 2.38 0.23
SDSS J160646.36+052218.2 241.69318 +5.3717390 16.88 57954.10306751 − 85 3 − 97 22 − 1.02 0.44 − 1.27 0.29
SDSS J213752.52–005754.3 324.46883 –0.96510684 16.74 57915.30185193 − 108 5 − 73 23 − 2.46 0.52 − 3.09 0.08
SDSS J221911.25+051519.5 334.79691 +5.2554223 16.94 57915.34479028 − 232 3 − 259 24 − 2.85 0.32 − 2.22b: 0.40
SDSS J223946.42–004827.7 339.94342 –0.8077150 15.73 57938.28656970 − 145 2 − 149 22 − 1.24 0.45 − 1.49 0.22
SDSS J231108.61+002650.3 347.78588 +0.44731512 16.77 57940.32010047 − 64 3 − 60 21 − 1.46 0.32 − 1.68 0.27
SDSS J233526.49+081905.9 353.86042 +8.3183210 16.53 57940.35885623 + 32 3 + 48 23 − 1.35 0.12 − 1.22 0.19
SDSS J233757.06+143607.2 354.48775 +14.602015 16.91 57951.22060599 − 49 2 − 43 38 − 0.81 0.23 − 0.85 0.23
SDSS J131326.89–001941.4 198.362066 –0.32766 16.87 57919.0637425

GMOS

SDSS J111434.26–120214.0 168.64275 –12.0372389 16.63 57955.174264249 − 4 2 − 0.84 0.22 − 1.07 0.22
SDSS J201114.15–111003.9 302.8089583 –11.16775 16.31 57955.147332606 − 102 2 − 1.22 0.30 − 1.03 0.17
SDSS J212351.59–080416.3 320.9649583 –8.0712167 16.73 57959.973129110 − 334 4 − 2.89 0.09 − 2.91 0.09

Notes. [M/H] from SDSS is based on several metallic features; [Fe/H] from FORS and GMOS spectra are taken from Fe I lines only. The solar A(Fe) = 7.52 adopted is taken from Caffau et al. (2011). The σ are line-to-line scatter, and for the uncertain cases, the colon in the iron abundance is an estimate of the uncertainty in the comparison to synthetic spectra. (a)g magnitudes are those used to derive the effective temperatures and are taken from the SDSS-DR 12. (b) Estimation from comparison to synthetic spectra; we consider these measurements to be uncertain.

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