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Table 4

Coordinates and atmospheric parameters for the programme stars.

Star g α δ T eff log g ξ [Fe/H] S/N ESO period
mag J2000 J2000 K cgs  km s-1 SDSS Object Typea
@420 nm
SDSS J002113-005005 16.7 00:21:13.78 –00:50:05.2 6546 4.59 1.54 −3.15 52 78 QSO
6546 4.01 1.76 −3.25 74 81 QSO
SDSS J002749+140418 16.9 00:27:49.46 +14:04:18.1 6125 3.61 1.46 −3.37 69 78 SP STD
SDSS J004029+160416 15.5 00:40:29.17 +16:04:16.2 6422 3.88 1.48 −3.27 112 78 Ser BLUE
6422 3.93 1.58 −3.25 156 81 Ser BLUE
SDSS J031745+002304 16.8 03:17:45.82 +00:23:04.2 5786 4.02 1.41 −3.46 66 78 SP STD
SDSS J082118+181931 16.7 08:21:18.18 +18:19:31.8 6158 4.00 1.50 −3.80 19 78 SP STD
SDSS J082521+040334 17.1 08:25:21.29 +04:03:34.4 6340 4.00 1.23 −3.46 80 81 SP STD
SDSS J090733+024608 16.3 09:07:33.28 +02:46:08.2 5934 3.71 1.61 −3.44 204 78 SP STD
SDSS J113528+010848 16.7 11:35:28.08 +01:08:48.8 6132 3.83 1.65 −3.03 63 78 SP STD
SDSS J122935+262445 16.7 12:29:35.95 +26 24 45.9 6452 4.20 2.68 −3.29 32 81 SP STD
SDSS J130017+263238 16.2 13:00:17.20 +26:32:38.6 6393 4.00 1.36 −3.65 85 81 SP STD
SDSS J143632+091831 16.1 14:36:32.27 +09:18:31.5 6340 4.00 1.42 −3.40 53 78 SP STD
SDSS J144640+124917 16.1 14:46:40.63 +12:49:17.5 6189 3.90 1.77 −3.16 52 78 SP STD
SDSS J154246+054426 17.2 15:42:46.87 +05:44:26.4 6179 4.00 1.68 −3.48 78 78 SP STD
SDSS J223143–094834 16.9 22:31:43.95 –09:48:34.4 6053 4.16 1.36 −3.20 91 78 SP STD
SDSS J230814–085526 16.5 23:08:14.85 –08:55:26.4 6015 4.66 1.74 −3.01 42 78 SP STD
SDSS J233113–010933 17.5 23:31:13.50 –01:09:33.4 6246 4.21 1.38 −3.08 71 81 RED STD

Notes.  SP STD = spectrophotometric standard; Ser BLUE = serendipity blue object; RED STD = reddening standard.

(a)

Object type, based on colours that motivated the selection of this object for SDSS spectroscopy: QSO = quasi stellar object;

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