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Table 1

Basic data for the observed stars and their stellar parameters.

Star RA (J2000) Dec (J2000) Ka K 0 Exp. time T eff log g [Fe/H] ξ macro SNR
(h:m:s) (d:am:as) [s] [K] (cgs) km s-1 pixel-1

Galactic centre stars
GC1 17:45:35.43 28:57:19.28 11.90 9.40 3000 3668 1.37 +0.19 6.6 55
GC20 17:45:34.95 28:55:20.17 11.68 9.37 3600 3683 0.76 +0.18 8.1 50
GC22 17:45:42.41 28:55:52.99 11.54 9.04 3600 3618 0.70 +0.02 6.0 90
GC25 17:45:36.34 28:54:50.41 11.60 9.10 2400 3340 0.77 +0.08 7.6 50
GC27 17:45:36.72 28:54:52.37 11.64 9.14 3600 3404 1.16 +0.31 8.1 50
GC28 17:45:38.13 28:54:58.32 11.67 9.17 3000 3773 1.24 0.13 5.7 50
GC29 17:45:43.12 28:55:37.10 11.59 9.09 3600 3420 0.74 +0.10 8.0 70
GC37 17:45:35.94 28:58:01.43 11.50 9.00 3600 3754 0.93 0.04 7.7 70
GC44 17:45:35.95 28:57:41.52 11.58 9.24 3600 3465 0.83 +0.29 6.9 70

Disk stars
α Boob 14:15:39.67 +19:10:56.7 2.91 atlas 4286 1.66 0.52 6.3 250
BD-012971 14:38:48.04 02:17:11.5 4.30 16 3573 0.50 0.78 9.3 150
142173c 00:32:12.56 38:34:02.3 9.29 240 4330 1.50 0.77 9.3 130
171877c 00:39:20.23 31:31:35.5 8.12 240 3975 1.10 0.93 7.0 150
225245c 00:54:46.38 27:35:30.4 8.79 240 4031 0.65 1.16 6.6 130
313132c 01:20:20.66 34:09:54.1 7.04 120 4530 2.00 0.20 8.7 190
343555c 01:29:42.01 30:15:46.4 8.46 240 4530 2.25 0.74 6.8 240
HD 787 00:12:09.99 17:56:17.8 1.86 4 4020 0.85 0.16 8.2 110

Notes.

a

K magnitude of the Galactic centre stars from Nishiyama (priv. comm.) and of the disk stars from 2MASS.

b

The fundamental parameters of α Boo are taken from Ramírez & Allende Prieto (2011).

c

Identification number from the Southern Proper-Motion Program (SPM III Girard et al. 2004), as given in Monaco et al. (2011).

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