Search for new Galactic Wolf–Rayet stars using Gaia DR3 - I. Candidate selection and the follow-up of the bright sample

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Volume 695 (March 2025)

A&A, 695 (2025) A227

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Table B.3

Gaia DR3 (Gaia Collaboration 2023) parallax (ϖ), goodness-of-fit (GOF), and RUWE of target stars. The geometric distances from Bailer-Jones et al. (2021) are listed and adopted for the calculations in this work. The calculated vertical distances from the Galactic disk are also included in the Table. The last column contains the subclass of each target.

Name	ϖ [mas]	ϖ/σ_ϖ	RUWE^a	GOF^b	Dist. (B-J) [kpc]	z [kpc]	Subclass
WR-C-01	0.131±0.014	9.4	1.06	1.96	${6.11}_{- 0.47}^{+ 0.57}$ $6.11_{ - 0.47}^{ + 0.57}$	$144_{- 11}^{+ 13}$ $144_{ - 11}^{ + 13}$	WN4
WR-C-02	0.261±0.016	16.0	1.03	0.62	${3.46}_{- 0.18}^{+ 0.25}$ $3.46_{ - 0.18}^{ + 0.25}$	$32_{- 2}^{+ 2}$ $32_{ - 2}^{ + 2}$	Not WR
WR-C-03	0.105±0.042	2.5	1.08	1.74	${6.50}_{- 1.27}^{+ 1.75}$ $6.50_{ - 1.27}^{ + 1.75}$	$- 348_{- 93}^{+ 68}$ $- 348_{ - 93}^{ + 68}$	Not WR
WR-C-04	0.137±0.041	3.4	0.98	−0.54	${6.14}_{- 1.07}^{+ 2.17}$ $6.14_{ - 1.07}^{ + 2.17}$	$- 78_{- 28}^{+ 14}$ $- 78_{ - 28}^{ + 14}$	..
WR-C-05	−0.155±0.067	−	3.86	53.56	${11.85}_{- 3.09}^{+ 3.56}$ $11.85_{ - 3.09}^{ + 3.56}$	$- 270_{- 81}^{+ 70}$ $- 270_{ - 81}^{ + 70}$	WC5
WR-C-06	0.147±0.024	6.0	1.05	1.26	${4.97}_{- 0.50}^{+ 0.72}$ $4.97_{ - 0.50}^{ + 0.72}$	$- 37_{- 5}^{+ 4}$ $- 37_{ - 5}^{ + 4}$	Not WR
WR-C-07	0.029±0.045	0.6	1.20	5.69	${8.14}_{- 1.47}^{+ 2.23}$ $8.14_{ - 1.47}^{ + 2.23}$	$- 120_{- 33}^{+ 22}$ $- 120_{ - 33}^{ + 22}$	..
WR-C-08	0.161±0.082	2.0	1.21	5.25	${4.53}_{- 1.02}^{+ 1.62}$ $4.53_{ - 1.02}^{ + 1.62}$	$- 106_{- 38}^{+ 24}$ $- 106_{ - 38}^{ + 24}$	..
WR-C-09	0.114±0.040	2.9	1.01	0.33	${6.26}_{- 1.15}^{+ 1.37}$ $6.26_{ - 1.15}^{ + 1.37}$	$5_{- 1}^{+ 1}$ $5_{ - 1}^{ + 1}$	..
WR-C-10	0.156±0.022	7.3	1.20	5.21	${5.09}_{- 0.58}^{+ 0.57}$ $5.09_{ - 0.58}^{ + 0.57}$	$- 34_{- 4}^{+ 4}$ $- 34_{ - 4}^{ + 4}$	WC5+abs
WR-C-11	0.056±0.019	2.9	0.98	−0.56	${10.31}_{- 1.55}^{+ 2.10}$ $10.31_{ - 1.55}^{ + 2.10}$	$- 338_{- 69}^{+ 51}$ $- 338_{ - 69}^{ + 51}$	WN5
WR-C-12	0.196±0.049	4.0	0.99	−0.25	${4.56}_{- 0.80}^{+ 1.13}$ $4.56_{ - 0.80}^{ + 1.13}$	$- 33_{- 8}^{+ 6}$ $- 33_{ - 8}^{ + 6}$	..
WR-C-13	0.224±0.074	3.0	1.01	0.36	${4.01}_{- 0.88}^{+ 1.27}$ $4.01_{ - 0.88}^{ + 1.27}$	$- 43_{- 13}^{+ 9}$ $- 43_{ - 13}^{ + 9}$	..
WR-C-14	0.258±0.023	11.2	1.76	22.87	${3.26}_{- 0.23}^{+ 0.27}$ $3.26_{ - 0.23}^{ + 0.27}$	$26_{- 2}^{+ 2}$ $26_{ - 2}^{ + 2}$	WC9
WR-C-15	−0.022±0.083	−	1.00	0.11	${6.13}_{- 1.27}^{+ 1.91}$ $6.13_{ - 1.27}^{ + 1.91}$	$- 89_{- 28}^{+ 18}$ $- 89_{ - 28}^{ + 18}$	..
WR-C-16	0.099±0.043	2.3	1.17	5.13	${6.50}_{- 1.48}^{+ 2.08}$ $6.50_{ - 1.48}^{ + 2.08}$	$- 201_{- 64}^{+ 46}$ $- 201_{ - 64}^{ + 46}$	WC8
WR-C-17	−0.062±0.056	−	1.05	1.32	${9.93}_{- 2.11}^{+ 2.57}$ $9.93_{ - 2.11}^{ + 2.57}$	$881_{- 187}^{+ 228}$ $881_{ - 187}^{ + 228}$	..
WR-C-18	0.193±0.054	3.6	1.12	3.22	${3.74}_{- 0.62}^{+ 0.96}$ $3.74_{ - 0.62}^{ + 0.96}$	$- 30_{- 8}^{+ 5}$ $- 30_{ - 8}^{ + 5}$	WC9d
WR-C-19	0.037±0.050	0.7	1.01	0.40	${8.35}_{- 1.80}^{+ 2.77}$ $8.35_{ - 1.80}^{ + 2.77}$	$- 211_{- 70}^{+ 45}$ $- 211_{ - 70}^{ + 45}$	..
WR-C-20	1.954±0.188	10.4	2.84	45.67	${0.51}_{- 0.04}^{+ 0.03}$ $0.51_{ - 0.04}^{ + 0.03}$	$- 6_{- 0}^{+ 0}$ $- 6_{ - 0}^{ + 0}$	..
WR-C-21	0.144±0.029	5.0	1.07	1.86	${4.98}_{- 0.56}^{+ 0.66}$ $4.98_{ - 0.56}^{ + 0.66}$	$125_{- 14}^{+ 17}$ $125_{ - 14}^{ + 17}$	WC7
WR-C-22	0.075±0.109	0.7	1.23	6.17	${5.64}_{- 1.84}^{+ 2.36}$ $5.64_{ - 1.84}^{ + 2.36}$	$- 131_{- 55}^{+ 43}$ $- 131_{ - 55}^{ + 43}$	..
WR-C-23	0.203±0.018	11.5	1.03	0.79	${3.95}_{- 0.24}^{+ 0.24}$ $3.95_{ - 0.24}^{ + 0.24}$	$- 197_{- 12}^{+ 12}$ $- 197_{ - 12}^{ + 12}$	WN8
WR-C-24	0.180±0.053	3.4	1.09	2.74	${4.06}_{- 0.72}^{+ 0.82}$ $4.06_{ - 0.72}^{ + 0.82}$	$- 2_{- 0}^{+ 0}$ $- 2_{ - 0}^{ + 0}$	WC9d
WR-C-25	0.165±0.129	1.3	1.09	2.11	${5.76}_{- 1.95}^{+ 3.83}$ $5.76_{ - 1.95}^{ + 3.83}$	$- 99_{- 66}^{+ 33}$ $- 99_{ - 66}^{ + 33}$	..
WR-C-26	0.413±0.021	19.4	0.92	−1.57	${2.30}_{- 0.11}^{+ 0.11}$ $2.30_{ - 0.11}^{ + 0.11}$	$- 10_{- 0}^{+ 0}$ $- 10_{ - 0}^{ + 0}$	WN6
WR-C-27	0.090±0.049	1.8	0.98	−0.43	${6.05}_{- 1.24}^{+ 1.93}$ $6.05_{ - 1.24}^{ + 1.93}$	$- 36_{- 12}^{+ 7}$ $- 36_{ - 12}^{ + 7}$	..
WR-C-28	0.272±0.018	14.9	1.08	1.92	${3.22}_{- 0.20}^{+ 0.20}$ $3.22_{ - 0.20}^{ + 0.20}$	$- 20_{- 1}^{+ 1}$ $- 20_{ - 1}^{ + 1}$	WN6+abs
WR-C-29	0.395±0.018	21.5	0.87	−2.87	${2.39}_{- 0.11}^{+ 0.10}$ $2.39_{ - 0.11}^{ + 0.10}$	$- 35_{- 1}^{+ 2}$ $- 35_{ - 1}^{ + 2}$	WN7
WR-C-30	−0.135±0.133	−	1.09	2.90	${7.83}_{- 2.68}^{+ 4.31}$ $7.83_{ - 2.68}^{ + 4.31}$	$9_{- 3}^{+ 5}$ $9_{ - 3}^{ + 5}$	..
WR-C-31	0.124±0.028	4.4	1.06	1.46	${5.33}_{- 0.61}^{+ 1.00}$ $5.33_{ - 0.61}^{ + 1.00}$	$110_{- 13}^{+ 21}$ $110_{ - 13}^{ + 21}$	WC8
WR-C-32	0.240±0.030	7.9	0.89	−2.33	${3.99}_{- 0.45}^{+ 0.58}$ $3.99_{ - 0.45}^{ + 0.58}$	$30_{- 3}^{+ 4}$ $30_{ - 3}^{ + 4}$	WC9d
WR-C-33	0.120±0.077	1.6	0.96	−0.78	${6.20}_{- 1.59}^{+ 2.55}$ $6.20_{ - 1.59}^{ + 2.55}$	$- 215_{- 88}^{+ 55}$ $- 215_{ - 88}^{ + 55}$	..
WR-C-34	0.253±0.072	3.5	1.09	1.75	${3.70}_{- 0.77}^{+ 1.25}$ $3.70_{ - 0.77}^{ + 1.25}$	$4_{- 1}^{+ 1}$ $4_{ - 1}^{ + 1}$	..
WR-C-35	0.171±0.027	6.4	1.12	2.46	${4.24}_{- 0.36}^{+ 0.51}$ $4.24_{ - 0.36}^{ + 0.51}$	$- 80_{- 10}^{+ 7}$ $- 80_{ - 10}^{ + 7}$	WN8
WR-C-36	0.297±0.025	11.8	1.05	1.08	${2.94}_{- 0.19}^{+ 0.17}$ $2.94_{ - 0.19}^{ + 0.17}$	$48_{- 3}^{+ 3}$ $48_{ - 3}^{ + 3}$	WN7h
WR-C-37	0.116±0.045	2.6	1.08	1.63	${5.71}_{- 1.12}^{+ 1.37}$ $5.71_{ - 1.12}^{ + 1.37}$	$402_{- 79}^{+ 97}$ $402_{ - 79}^{ + 97}$	WC9
WR-C-38	0.179±0.043	4.2	0.91	−1.91	${4.22}_{- 0.70}^{+ 0.93}$ $4.22_{ - 0.70}^{ + 0.93}$	$39_{- 6}^{+ 9}$ $39_{ - 6}^{ + 9}$	WC9
WR-C-39	0.128±0.028	4.6	1.02	0.50	${5.44}_{- 0.60}^{+ 0.90}$ $5.44_{ - 0.60}^{ + 0.90}$	$110_{- 12}^{+ 18}$ $110_{ - 12}^{ + 18}$	WN7-8
WR-C-40	0.211±0.064	3.3	3.18	36.63	${4.33}_{- 0.73}^{+ 1.33}$ $4.33_{ - 0.73}^{ + 1.33}$	$13_{- 2}^{+ 4}$ $13_{ - 2}^{ + 4}$	WC9
WR-C-41	0.045±0.040	1.1	0.99	−0.26	${8.22}_{- 1.62}^{+ 2.38}$ $8.22_{ - 1.62}^{ + 2.38}$	$- 290_{- 84}^{+ 57}$ $- 290_{ - 84}^{ + 57}$	WN5-6
WR-C-42	0.035±0.035	1.0	1.06	1.19	${8.35}_{- 1.52}^{+ 1.93}$ $8.35_{ - 1.52}^{ + 1.93}$	$191_{- 35}^{+ 44}$ $191_{ - 35}^{ + 44}$	WN6
WR-C-43	0.199±0.053	3.8	1.15	3.14	${3.63}_{- 0.57}^{+ 0.56}$ $3.63_{ - 0.57}^{ + 0.56}$	$6_{- 1}^{+ 1}$ $6_{ - 1}^{ + 1}$	WC9d
WR-C-44	0.165±0.037	4.5	1.09	1.84	${5.11}_{- 0.86}^{+ 1.00}$ $5.11_{ - 0.86}^{ + 1.00}$	$- 129_{- 25}^{+ 22}$ $- 129_{ - 25}^{ + 22}$	WN5-6
WR-C-45	0.182±0.108	1.7	1.12	2.46	${4.27}_{- 1.21}^{+ 1.50}$ $4.27_{ - 1.21}^{ + 1.50}$	$- 100_{- 35}^{+ 28}$ $- 100_{ - 35}^{ + 28}$	..
WR-C-46	0.242±0.031	7.8	1.32	5.77	${3.22}_{- 0.27}^{+ 0.35}$ $3.22_{ - 0.27}^{ + 0.35}$	$67_{- 6}^{+ 7}$ $67_{ - 6}^{ + 7}$	WC8
WR-C-47	0.140±0.048	2.9	1.10	2.36	${5.46}_{- 1.10}^{+ 1.56}$ $5.46_{ - 1.10}^{ + 1.56}$	$152_{- 30}^{+ 43}$ $152_{ - 30}^{ + 43}$	WC6
WR-C-48	−1.902±0.452	−	13.84	251.32	${5.93}_{- 1.67}^{+ 1.71}$ $5.93_{ - 1.67}^{ + 1.71}$	$21_{- 6}^{+ 6}$ $21_{ - 6}^{ + 6}$	WC7
WR-C-49	−	−	−	669.89	−	−	..
WR-C-50	0.206±0.142	1.4	9.60	162.57	${4.49}_{- 1.36}^{+ 2.15}$ $4.49_{ - 1.36}^{ + 2.15}$	$- 20_{- 9}^{+ 6}$ $- 20_{ - 9}^{ + 6}$	WN5-6
WR-C-51	−0.077±0.083	−	0.92	−3.11	${9.99}_{- 2.79}^{+ 3.83}$ $9.99_{ - 2.79}^{ + 3.83}$	$199_{- 55}^{+ 76}$ $199_{ - 55}^{ + 76}$	..
WR-C-52	0.101±0.047	2.2	1.03	0.87	${6.72}_{- 1.25}^{+ 1.71}$ $6.72_{ - 1.25}^{ + 1.71}$	$- 227_{- 58}^{+ 42}$ $- 227_{ - 58}^{ + 42}$	..
WR-C-53	0.122±0.045	2.7	0.98	−0.53	${6.44}_{- 1.29}^{+ 2.14}$ $6.44_{ - 1.29}^{ + 2.14}$	$222_{- 44}^{+ 74}$ $222_{ - 44}^{ + 74}$	..
WR-C-54	0.271±0.015	17.7	1.43	11.72	${3.36}_{- 0.15}^{+ 0.17}$ $3.36_{ - 0.15}^{ + 0.17}$	$86_{- 4}^{+ 4}$ $86_{ - 4}^{ + 4}$	WN6+abs
WR-C-55	0.099±0.023	4.2	1.04	1.05	${6.98}_{- 0.86}^{+ 1.09}$ $6.98_{ - 0.86}^{ + 1.09}$	$110_{- 14}^{+ 17}$ $110_{ - 14}^{ + 17}$	WN3
WR-C-56	−0.051±0.078	−	1.07	1.78	${7.17}_{- 1.92}^{+ 2.28}$ $7.17_{ - 1.92}^{ + 2.28}$	$374_{- 100}^{+ 119}$ $374_{ - 100}^{ + 119}$	..
WR-C-57	0.114±0.028	4.0	1.07	2.06	${6.14}_{- 0.86}^{+ 1.20}$ $6.14_{ - 0.86}^{ + 1.20}$	$281_{- 40}^{+ 55}$ $281_{ - 40}^{ + 55}$	WN/C
WR-C-58	0.126±0.025	5.0	1.15	3.80	${5.70}_{- 0.71}^{+ 0.90}$ $5.70_{ - 0.71}^{ + 0.90}$	$122_{- 15}^{+ 19}$ $122_{ - 15}^{ + 19}$	WC5
WR-C-59	0.084±0.023	3.7	1.00	−0.01	${8.69}_{- 1.35}^{+ 1.68}$ $8.69_{ - 1.35}^{ + 1.68}$	$533_{- 83}^{+ 103}$ $533_{ - 83}^{ + 103}$	WN3

Notes. ^aRenormalized unit weight error (RUWE). A value close to 1.0 suggests a good fit with a single-star model, whereas notably higher values may point to problems with the astrometric solution or the presence of a binary companion. ^bGoodness-of-fit statistic for the astrometric solution. As per the Gaia DR3 documentation, values of ≳3 indicate a poor fit to the observed data.

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