The mysterious globular cluster population of MATLAS-2019

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Volume 706 (February 2026)

A&A, 706 (2026) A163

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Table C.1

Properties of the GC candidates identified in MATLAS-2019.

Name	RA (J2000.0)	Dec (J2000.0)	F475W (mag)	F606W (mag)	F814W (mag)	u (mag)	R_e,Gauss,SEx (arcsec)	R_e,Gauss (arcsec)	$χ_{r e d, G a u s s}^{2}$ $\chi _{red,Gauss}^2$	R_e,King (arcsec)	$χ_{r e d, K i n g}^{2}$ $\chi _{red,King}^2$	Ellipticity
GC1*	226.334535	1.812961	22.49 ± 0.02	22.09 ± 0.01	21.67 ± 0.01	23.50 ± 0.03	0.056 ± 0.001	0.045± 0.006	3.20	0.063±0.006	1.34	0.10 ± 0.02
GC2*	226.333920	1.812404	22.82 ± 0.02	22.40 ± 0.01	21.96 ± 0.01	24.02 ± 0.05	0.047 ± 0.001	0.035±0.006	1.86	0.034±0.006	1.23	0.10 ± 0.02
GC3*	226.336544	1.817503	23.15 ± 0.02	22.69 ± 0.01	22.36 ± 0.02	24.50 ± 0.08	0.040 ± 0.002	0.028±0.006	1.42	0.021±0.006	1.32	0.09 ± 0.02
GC4*	226.335655	1.811625	23.26 ± 0.03	22.84 ± 0.02	22.38 ± 0.02	24.36 ± 0.07	0.047 ± 0.002	0.038±0.006	1.55	0.050±0.006	1.08	0.07 ± 0.02
GC5*	226.335160	1.813678	23.39 ± 0.03	22.92 ± 0.02	22.49 ± 0.02	24.66 ± 0.09	0.042 ± 0.002	0.032±0.006	1.26	0.029±0.006	1.08	0.07 ± 0.02
GC6*	226.333500	1.811074	23.41 ± 0.03	22.98 ± 0.02	22.61 ± 0.02	24.53 ± 0.08	0.040 ± 0.002	0.028±0.006	1.20	0.024±0.006	1.10	0.06 ± 0.02
GC7*	226.333823	1.810629	23.46 ± 0.03	23.02 ± 0.02	22.62 ± 0.02	24.64 ± 0.09	0.040 ± 0.002	0.031±0.006	1.67	0.028±0.006	1.58	0.05 ± 0.02
GC8**	226.331357	1.815125	23.62 ± 0.03	23.18 ± 0.02	22.78 ± 0.02	24.74 ± 0.10	0.043 ± 0.002	0.034±0.006	1.40	0.037±0.006	1.22	0.07 ± 0.03
GC9*	226.336456	1.815258	23.61 ± 0.03	23.13 ± 0.02	22.69 ± 0.02	24.92 ± 0.12	0.036 ± 0.002	0.024±0.006	1.11	0.020±0.006	1.07	0.06 ± 0.03
GC10*	226.329937	1.811504	24.02 ± 0.03	23.52 ± 0.02	23.10 ± 0.02	25.46 ± 0.21	0.043 ± 0.003	0.037±0.006	1.20	0.039±0.006	1.09	0.07 ± 0.03
GC11*	226.334080	1.810156	24.06 ± 0.03	23.63 ± 0.02	23.27 ± 0.02	25.38 ± 0.19	0.045 ± 0.003	0.030±0.006	1.09	0.024±0.006	1.06	0.05 ± 0.03
GC12*	226.335797	1.813603	24.00 ± 0.03	23.50 ± 0.02	23.09 ± 0.02	25.48 ± 0.21	0.039 ± 0.003	0.024±0.006	1.12	0.018±0.006	1.11	0.09 ± 0.03
GC13*	226.335548	1.812565	24.00 ± 0.03	23.60 ± 0.02	23.12 ± 0.02	…	0.036 ± 0.003	0.022±0.006	1.23	0.013±0.006	1.23	0.04 ± 0.03
GC14*	226.337543	1.817332	24.81 ± 0.05	24.33 ± 0.03	23.88 ± 0.03	…	0.056 ± 0.005	0.044±0.006	1.08	0.046±0.006	1.06	0.08 ± 0.03
GC15*	226.335041	1.810901	24.80 ± 0.05	24.36 ± 0.03	23.93 ± 0.03	…	0.044 ± 0.006	0.031±0.006	1.11	0.034±0.006	1.08	0.11 ± 0.03
GC16*	226.332882	1.812673	24.71 ± 0.05	24.22 ± 0.03	23.88 ± 0.03	…	0.043 ± 0.005	0.031±0.006	1.07	0.028±0.006	1.06	0.09 ± 0.03
GC17*	226.338345	1.818353	25.11 ± 0.06	24.70 ± 0.04	24.20 ± 0.04	…	0.065 ± 0.008	0.046± 0.006	1.02	0.062±0.006	1.00	0.06 ± 0.04
GC18*	226.333652	1.815722	25.18 ± 0.06	24.69 ± 0.04	24.36 ± 0.04	…	0.046 ± 0.008	0.035±0.006	1.02	0.031±0.006	1.01	0.05 ± 0.04
GC19*	226.334855	1.810012	25.98 ± 0.10	25.58 ± 0.07	25.25 ± 0.08	…	0.084 ± 0.035	0.058±0.006	1.14	0.062±0.006	1.14	0.16 ± 0.05
GC20^a.b	226.349708	1.827662	24.85 ± 0.05	24.48 ± 0.03	24.11 ± 0.04	…	0.020 ± 0.007	0.011±0.006	1.22	0.013±0.006	1.23	0.05 ± 0.03
GC21^a	226.335338	1.821988	24.64 ± 0.04	24.18 ± 0.03	23.76 ± 0.03	…	0.047 ± 0.005	0.022±0.006	1.09	0.017±0.006	1.09	0.12 ± 0.03
GC22	226.330051	1.814242	24.44 ± 0.04	23.95 ± 0.02	23.47 ± 0.02	…	0.038 ± 0.004	0.031±0.006	1.12	0.032±0.006	1.07	0.03 ± 0.03
GC23	226.332685	1.813938	25.34 ± 0.07	24.93 ± 0.04	24.54 ± 0.05	…	0.047 ± 0.011	0.033±0.006	1.00	0.028±0.006	0.99	0.12 ± 0.04
GC24	226.331124	1.813442	24.64 ± 0.04	24.21 ± 0.03	23.69 ± 0.03	…	0.046 ± 0.005	0.036±0.006	1.07	0.034±0.006	1.05	0.11 ± 0.03
GC25	226.330619	1.812414	24.77 ± 0.05	24.28 ± 0.03	23.92 ± 0.03	…	0.042 ± 0.005	0.028±0.006	1.06	0.026±0.006	1.06	0.11 ± 0.03
GC26	226.328714	1.811063	24.95 ± 0.05	24.48 ± 0.03	23.96 ± 0.03	…	0.078 ± 0.007	0.071±0.006	1.09	0.078±0.006	1.07	0.12 ± 0.03
GC27	226.331864	1.811113	24.48 ± 0.04	24.02 ± 0.02	23.57 ± 0.03	25.58 ± 0.23	0.063 ± 0.004	0.030±0.006	1.27	0.035±0.006	1.23	0.17 ± 0.03
GC28	226.336051	1.812232	26.03 ± 0.11	25.60 ± 0.07	25.07 ± 0.07	…	0.093 ± 0.036	0.071±0.006	2.39	0.082±0.006	2.39	0.03 ± 0.05
GC29	226.331104	1.810617	24.56 ± 0.04	24.06 ± 0.02	23.60 ± 0.03	25.48 ± 0.21	0.068 ± 0.005	0.060±0.006	1.13	0.069±0.006	1.09	0.12 ± 0.03
GC30	226.330057	1.810117	24.44 ± 0.04	23.99 ± 0.02	23.56 ± 0.03	…	0.047 ± 0.004	0.039±0.006	1.12	0.038±0.006	1.09	0.14 ± 0.03
GC31	226.332186	1.810756	26.01 ± 0.11	25.52 ± 0.06	25.11 ± 0.07	…	0.085 ± 0.032	0.060±0.006	4.18	0.059 ±0.006	4.18	0.16 ± 0.04
GC32^a	226.315201	1.804219	24.66 ± 0.04	24.19 ± 0.03	23.74 ± 0.03	…	0.047 ± 0.005	0.036±0.006	1.07	0.040±0.006	1.03	0.15 ± 0.03
GC33^b	226.332478	1.808550	24.89 ± 0.05	24.46 ± 0.03	24.16 ± 0.04	…	0.025 ± 0.006	0.016±0.006	1.13	0.013±0.006	1.14	0.06 ± 0.03
GC34	226.340596	1.809073	25.27 ± 0.06	24.73 ± 0.04	24.18 ± 0.04	…	0.080 ± 0.008	0.069±0.006	1.04	0.094±0.006	1.03	0.09 ± 0.04
GC35 ^a,b	226.332256	1.802822	22.25 ± 0.02	21.88 ± 0.01	21.58 ± 0.01	23.70 ± 0.04	0.024 ± 0.001	0.007±0.006	2.38	0.013±0.006	3.18	0.06 ± 0.02
GC36***	226.334017	1.811001	25.68 ± 0.08	24.97 ± 0.04	24.43 ± 0.04	…	0.078 ± 0.011	0.043±0.006	22.49	0.040±0.006	22.49	0.09 ± 0.04

Notes. Magnitudes are corrected from Galactic extinction and aperture corrections (see Sect. 3.1.3, 3.2, and 3.3 for details). The R_{e,Gauss,S Ex} column indicates the R_e measurement obtained from SExtractor as described in Sect. 3.2. The following four columns are the measurements obtained by fitting the GCs with an intrinsic Gaussian profile (R_e,Gauss, $χ_{r e d, K i n g}^{2}$ $\chi _{red,King}^2$ ) and an intrinsic King profile ( $R_{e, K i n g} χ_{r e d, K i n g}^{2}$ ${R_{e,King}}\,\chi _{red,King}^2$ ) as described in Sect. F.1.

∗ Spectroscopically confirmed GCs from Haacke et al. (2025).

∗∗ Spectroscopically confirmed GCs from Müller et al. (2020), out of coverage in Haacke et al. (2025)

∗∗∗ Spectroscopically confirmed GC from Haacke et al. (2025) with anomalous colours

^a GC candidates at 2 effective radius from the galaxy’s centre or more.

^b GC candidates with point-like light profiles.

When the u magnitude is not provided is because the GC candidate is too faint in that band to be detected.

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