TITANS metal-poor reference stars - I. Accurate effective temperatures and surface gravities for dwarfs and subgiants from 3D non-LTE Hα profiles and Gaia parallaxes

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Table 2

Fundamental parameters and metallicities of the TITANS.

Name	T_eff (K)	log g	()	R (R_⊙)	Age (Gyr)	[Fe I/H]	[Fe II/H]	V	E(B − V)
BD+24 1676	6440 ± 33	4.09 ± 0.04	0.79 ± 0.01	1.31 ± 0.05	13.07 ± 0.67	− 2.26	− 2.24	10.81	0.015
BD − 10 388	6293 ± 43	3.90 ± 0.04	0.81 ± 0.01	1.67 ± 0.07	12.21 ± 0.54	− 2.21	− 2.22	10.35	0.029
BPS CS22166-030	6255 ± 39	3.76 ± 0.04	0.80 ± 0.01	1.89 ± 0.08	13.25 ± 0.66	− 2.98	− 3.11	13.62	0.023
CD − 33 3337^§	6087 ± 36	3.97 ± 0.04	0.85 ± 0.01	1.58 ± 0.06	11.42 ± 0.65	− 1.33	− 1.34	9.11	0.002
CD − 35 14849	6377 ± 34	4.37 ± 0.04	0.78 ± 0.02	0.95 ± 0.03	11.12 ± 1.73	− 2.17	− 2.15	10.56	0.060
HD 16031	6266 ± 31	4.27 ± 0.04	0.80 ± 0.02	1.09 ± 0.04	11.78 ± 1.23	− 1.63	− 1.63	9.77	0.003
HD 166913	6172 ± 35	4.23 ± 0.04	0.78 ± 0.02	1.13 ± 0.04	12.97 ± 1.19	− 1.51	− 1.51	8.22	0.006
HD 218502	6323 ± 32	4.10 ± 0.04	0.80 ± 0.01	1.31 ± 0.05	12.43 ± 0.68	− 1.75	− 1.74	8.25	0.002
HD 34328^§	5997 ± 36	4.48 ± 0.04	0.74 ± 0.02	0.82 ± 0.03	11.72 ± 2.27	− 1.56	− 1.64	9.46	0.001
HD 59392	6160 ± 39	4.02 ± 0.04	0.82 ± 0.01	1.47 ± 0.06	12.21 ± 0.70	− 1.52	− 1.53	9.76	0.005
BD + 02 4651^§	6274 ± 49	4.07 ± 0.04	0.81 ± 0.01	1.37 ± 0.06	12.13 ± 0.80	− 1.63	− 1.62	10.20	0.037
BD+03 740	6385 ± 48	3.99 ± 0.04	0.78 ± 0.01	1.48 ± 0.06	13.94 ± 0.60	− 2.56	− 2.52	9.81	0.019
BD − 13 3442	6446 ± 34	4.00 ± 0.04	0.79 ± 0.01	1.48 ± 0.06	13.14 ± 0.57	− 2.60	− 2.61	10.27	0.026
BD+26 2621	6457 ± 31	4.31 ± 0.04	0.78 ± 0.02	1.02 ± 0.04	11.97 ± 1.30	− 2.43	− 2.42	11.02	0.031
BD+26 4251	6107 ± 33	4.24 ± 0.04	0.80 ± 0.02	1.12 ± 0.04	12.72 ± 1.27	− 1.24	− 1.28	10.05	0.024
BD+29 2091	5879 ± 32	4.56 ± 0.04	0.70 ± 0.02	0.72 ± 0.02	11.82 ± 2.42	− 1.86	− 1.96	10.24	0.004
CD − 30 18140	6317 ± 33	4.18 ± 0.04	0.78 ± 0.01	1.19 ± 0.05	13.07 ± 0.94	− 1.83	− 1.79	9.93	0.007
CD − 33 1173	6602 ± 32	4.30 ± 0.04	0.70 ± 0.01	1.05 ± 0.04	11.23 ± 1.06	− 2.67	− 2.72	10.90	0.005
CD − 48 2445^§	[6545 ± 32]	3.95 ± 0.04	0.90 ± 0.01	1.65 ± 0.06	8.97 ± 0.46	− 1.71	− 1.88	9.64	0.023
CD − 71 1234	6432 ± 31	4.28 ± 0.04	0.78 ± 0.02	1.06 ± 0.04	12.30 ± 1.22	− 2.24	− 2.23	10.44	0.028
G 24 − 3	6076 ± 31	4.36 ± 0.04	0.76 ± 0.01	0.95 ± 0.03	13.05 ± 1.42	− 1.50	− 1.50	10.46	0.040
HD 108177	6274 ± 34	4.36 ± 0.05	0.82 ± 0.02	1.00 ± 0.04	9.48 ± 1.64	− 1.56	− 1.58	9.66	0.004
HD 116064^§	[6022 ± 37]	4.33 ± 0.04	0.74 ± 0.01	0.97 ± 0.03	14.32 ± 0.67	− 2.00	− 1.90	8.81	0.005
HD 122196^§	6097 ± 32	3.93 ± 0.04	0.81 ± 0.01	1.61 ± 0.06	12.85 ± 0.66	− 1.69	− 1.65	8.75	0.012
HD 126681	5605 ± 31	4.61 ± 0.03	0.70 ± 0.02	0.69 ± 0.02	11.20 ± 3.09	− 1.22	− 1.22	9.54	0.002
HD 132475	5786 ± 41	3.83 ± 0.04	0.81 ± 0.01	1.80 ± 0.07	13.51 ± 0.77	− 1.41	− 1.44	8.55	0.015
HD 160617	6102 ± 43	3.92 ± 0.04	0.80 ± 0.01	1.63 ± 0.07	12.97 ± 0.69	− 1.69	− 1.69	8.73	0.006
HD 189558	5701 ± 32	3.86 ± 0.04	0.84 ± 0.02	1.80 ± 0.07	12.50 ± 0.85	− 1.13	− 1.20	7.72	0.002
HD 193901	5853 ± 34	4.50 ± 0.04	0.77 ± 0.02	0.81 ± 0.03	10.45 ± 2.95	− 1.10	− 1.12	8.67	0.000
HD 213657	6275 ± 40	4.07 ± 0.04	0.79 ± 0.01	1.36 ± 0.06	13.31 ± 0.76	− 1.84	− 1.82	9.66	0.004
HD 241253	5929 ± 35	4.53 ± 0.04	0.78 ± 0.03	0.79 ± 0.03	8.18 ± 3.19	− 1.11	− 1.11	10.29	0.002
HD 284248	6270 ± 33	4.33 ± 0.05	0.81 ± 0.02	1.01 ± 0.04	10.50 ± 1.58	− 1.55	− 1.54	9.23	0.006
HD 74000	6408 ± 40	4.35 ± 0.05	0.81 ± 0.02	0.99 ± 0.04	9.96 ± 1.56	− 1.82	− 1.85	9.66	0.002
HD 94028	6097 ± 40	4.38 ± 0.04	0.79 ± 0.02	0.95 ± 0.04	11.47 ± 2.04	− 1.33	− 1.36	8.22	0.001
HE 0926 − 0508	6458 ± 32	4.10 ± 0.04	0.78 ± 0.01	1.30 ± 0.06	13.33 ± 0.68	− 2.47	− 2.50	12.19	0.029
LP 815 − 43	6539 ± 41	4.11 ± 0.04	0.82 ± 0.01	1.32 ± 0.06	11.21 ± 0.59	− 2.53	− 2.57	10.72	0.029
LP 831 − 70	6379 ± 35	4.48 ± 0.04	0.78 ± 0.03	0.84 ± 0.03	9.14 ± 2.48	− 2.69	− 2.70	11.80	0.011
Ross 453	6151 ± 32	4.39 ± 0.04	0.74 ± 0.02	0.91 ± 0.03	13.18 ± 1.44	− 1.98	− 1.92	11.09	0.015
Ross 892	6056 ± 33	4.44 ± 0.05	0.81 ± 0.03	0.90 ± 0.04	9.27 ± 2.38	− 1.12	− 1.21	11.03	0.013
UCAC2 20056019	6443 ± 33	3.93 ± 0.03	0.81 ± 0.01	1.62 ± 0.07	12.16 ± 0.52	− 2.67	− 2.64	13.48	0.012
Wolf 1492	6592 ± 32	4.29 ± 0.04	0.79 ± 0.01	1.05 ± 0.04	11.63 ± 1.07	− 2.92	− 3.04	11.45	0.025

HD 140283	5810 ± 32	3.67 ± 0.02	0.79 ± 0.01	2.13 ± 0.07	13.40 ± 0.69	− 2.40	− 2.30	7.21	0.002
HD 84937	6358 ± 33	4.13 ± 0.03	0.77 ± 0.01	1.25 ± 0.04	13.80 ± 0.51	− 2.09	− 2.08	8.32	0.003
HD 22879	5894 ± 23	4.27 ± 0.04	0.77 ± 0.01	1.09 ± 0.04	13.84 ± 0.70	− 0.88	− 0.86	6.67	0.00
HD 298986	6177 ± 39	4.28 ± 0.04	0.81 ± 0.01	1.08 ± 0.04	11.50 ± 0.70	− 1.33	− 1.32	10.03	0.008
HD 106038	6094 ± 43	4.29 ± 0.04	0.77 ± 0.01	1.05 ± 0.04	13.80 ± 0.94	− 1.31	− 1.36	10.16	0.008
HD 201891	6007 ± 37	4.34 ± 0.04	0.79 ± 0.01	0.99 ± 0.03	12.30 ± 1.06	− 0.97	− 1.10	7.37	0.001
HD 102200	6246 ± 19	4.36 ± 0.04	0.87 ± 0.01	1.01 ± 0.03	7.90 ± 0.83	− 1.08	− 1.13	8.76	0.004

Notes. The symbol §, following the star name, indicates a binary system identified in Kervella et al. (2019) or Hansen et al. (2017). Values of T_eff in square brackets are uncertain according to the analysis in Sect. 4.3. Uncertainties accompanying the T_eff values are internal (i.e. the method precision). For the total uncertainties, one has to further include the estimated model accuracy error of ± 50 K (as discussed in Sect. 3.4). We note that V is the apparent magnitude, and E(B − V) is the colour excess. The bottom part of the table incorporates the metal-poor Gaia benchmark stars. The new parameters determined here for these stars are likely more accurate than previously available estimates.

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