Table 6. Open in new tab Observational...

ID	RA	DEC	I	(B − I)₀	(B − V)₀	(U − B)₀	FWHM	AREA	CI	M_F814W	r_gc (kpc)	FLAG
M81-GC1	148.84125	69.110425	16.13 ± 0.03	2.06 ± 0.10	1.10 ± 0.10	1.63 ± 0.10	3.62	–	–	−11.66	3.03	02
M81-GC2	148.94123	69.050097	16.75 ± 0.03	2.24 ± 0.10	1.27 ± 0.10	2.05 ± 0.10	3.45	–	–	−11.03	1.54	03
M81-GC3	149.11440	69.019380	16.95 ± 0.03	1.78 ± 0.10	1.00 ± 0.10	1.43 ± 0.10	5.82	–	–	−10.84	5.87	02
M101-GC1	210.824946	54.318723	17.63 ± 0.02	2.51 ± 0.00	1.20 ± 0.17	1.31 ± 0.41	3.07	449	1.30	−11.57	4.00	03
M101-GC2	210.884651	54.414166	18.57 ± 0.02	2.74 ± 0.00	1.14 ± 0.17	–	3.38	394	1.50	−10.63	9.82	00
M101-GC3	210.884508	54.369237	19.10 ± 0.02	2.48 ± 0.00	1.46 ± 0.17	–	2.92	301	1.39	−10.10	6.31	00
NGC 4258-GC1	184.729270	47.264868	17.83 ± 0.00	1.63 ± 0.00	0.79 ± 0.10	–	2.69	311	1.16	−11.57	5.25	00
NGC 4258-GC2	184.865700	47.210389	17.89 ± 0.00	3.37 ± 0.01	1.13 ± 0.10	–	2.79	165	1.18	−11.50	16.78	00
NGC 4258-GC3	184.745970	47.301067	17.97 ± 0.00	2.15 ± 0.01	0.99 ± 0.10	0.43 ± 0.05	4.03	440	1.65	−11.42	0.69	02
M51-GC1	202.459584	47.174710	18.90 ± 0.03	2.05 ± 0.00	1.07 ± 0.10	−0.06 ± 0.17	3.10	462	1.44	−10.76	3.23	02
M51-GC2	202.507117	47.241845	19.18 ± 0.03	3.50 ± 0.00	1.52 ± 0.10	1.17 ± 0.17	2.77	271	1.35	−10.48	7.96	03
M51-GC3	202.469420	47.253906	19.31 ± 0.03	1.75 ± 0.00	1.25 ± 0.10	–	2.47	281	1.24	−10.35	8.80	00
NCG628-GC1	24.221429	15.788914	18.28 ± 0.03	2.51 ± 0.00	1.08 ± 0.16	1.82 ± 0.07	3.33	471	1.56	−11.66	7.84	03
NCG628-GC2	24.171023	15.782500	19.13 ± 0.03	1.90 ± 0.00	0.68 ± 0.16	0.28 ± 0.09	2.75	243	1.37	−10.81	0.52	02
NCG628-GC3	24.212973	15.734987	19.71 ± 0.03	3.15 ± 0.00	1.25 ± 0.16	–	2.62	183	1.16	−10.23	10.48	00

DEC

(B − I)₀

(B − V)₀

(U − B)₀

FWHM

AREA

M_F814W

r_gc (kpc)

FLAG

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10)

(11)

(12)

(13)

M81-GC1

148.84125

69.110425

16.13 ± 0.03

2.06 ± 0.10

1.10 ± 0.10

1.63 ± 0.10

3.62

–

−11.66

3.03

M81-GC2

148.94123

69.050097

16.75 ± 0.03

2.24 ± 0.10

1.27 ± 0.10

2.05 ± 0.10

3.45

–

−11.03

1.54

M81-GC3

149.11440

69.019380

16.95 ± 0.03

1.78 ± 0.10

1.00 ± 0.10

1.43 ± 0.10

5.82

–

−10.84

5.87

M101-GC1

210.824946

54.318723

17.63 ± 0.02

2.51 ± 0.00

1.20 ± 0.17

1.31 ± 0.41

3.07

449

1.30

−11.57

4.00

M101-GC2

210.884651

54.414166

18.57 ± 0.02

2.74 ± 0.00

1.14 ± 0.17

–

3.38

394

1.50

−10.63

9.82

M101-GC3

210.884508

54.369237

19.10 ± 0.02

2.48 ± 0.00

1.46 ± 0.17

–

2.92

301

1.39

−10.10

6.31

NGC 4258-GC1

184.729270

47.264868

17.83 ± 0.00

1.63 ± 0.00

0.79 ± 0.10

–

2.69

311

1.16

−11.57

5.25

NGC 4258-GC2

184.865700

47.210389

17.89 ± 0.00

3.37 ± 0.01

1.13 ± 0.10

–

2.79

165

1.18

−11.50

16.78

NGC 4258-GC3

184.745970

47.301067

17.97 ± 0.00

2.15 ± 0.01

0.99 ± 0.10

0.43 ± 0.05

4.03

440

1.65

−11.42

0.69

M51-GC1

202.459584

47.174710

18.90 ± 0.03

2.05 ± 0.00

1.07 ± 0.10

−0.06 ± 0.17

3.10

462

1.44

−10.76

3.23

M51-GC2

202.507117

47.241845

19.18 ± 0.03

3.50 ± 0.00

1.52 ± 0.10

1.17 ± 0.17

2.77

271

1.35

−10.48

7.96

M51-GC3

202.469420

47.253906

19.31 ± 0.03

1.75 ± 0.00

1.25 ± 0.10

–

2.47

281

1.24

−10.35

8.80

NCG628-GC1

24.221429

15.788914

18.28 ± 0.03

2.51 ± 0.00

1.08 ± 0.16

1.82 ± 0.07

3.33

471

1.56

−11.66

7.84

NCG628-GC2

24.171023

15.782500

19.13 ± 0.03

1.90 ± 0.00

0.68 ± 0.16

0.28 ± 0.09

2.75

243

1.37

−10.81

0.52

NCG628-GC3

24.212973

15.734987

19.71 ± 0.03

3.15 ± 0.00

1.25 ± 0.16

–

2.62

183

1.16

−10.23

10.48

ID	RA	DEC	I	(B − I)₀	(B − V)₀	(U − B)₀	FWHM	AREA	CI	M_F814W	r_gc (kpc)	FLAG
M81-GC1	148.84125	69.110425	16.13 ± 0.03	2.06 ± 0.10	1.10 ± 0.10	1.63 ± 0.10	3.62	–	–	−11.66	3.03	02
M81-GC2	148.94123	69.050097	16.75 ± 0.03	2.24 ± 0.10	1.27 ± 0.10	2.05 ± 0.10	3.45	–	–	−11.03	1.54	03
M81-GC3	149.11440	69.019380	16.95 ± 0.03	1.78 ± 0.10	1.00 ± 0.10	1.43 ± 0.10	5.82	–	–	−10.84	5.87	02
M101-GC1	210.824946	54.318723	17.63 ± 0.02	2.51 ± 0.00	1.20 ± 0.17	1.31 ± 0.41	3.07	449	1.30	−11.57	4.00	03
M101-GC2	210.884651	54.414166	18.57 ± 0.02	2.74 ± 0.00	1.14 ± 0.17	–	3.38	394	1.50	−10.63	9.82	00
M101-GC3	210.884508	54.369237	19.10 ± 0.02	2.48 ± 0.00	1.46 ± 0.17	–	2.92	301	1.39	−10.10	6.31	00
NGC 4258-GC1	184.729270	47.264868	17.83 ± 0.00	1.63 ± 0.00	0.79 ± 0.10	–	2.69	311	1.16	−11.57	5.25	00
NGC 4258-GC2	184.865700	47.210389	17.89 ± 0.00	3.37 ± 0.01	1.13 ± 0.10	–	2.79	165	1.18	−11.50	16.78	00
NGC 4258-GC3	184.745970	47.301067	17.97 ± 0.00	2.15 ± 0.01	0.99 ± 0.10	0.43 ± 0.05	4.03	440	1.65	−11.42	0.69	02
M51-GC1	202.459584	47.174710	18.90 ± 0.03	2.05 ± 0.00	1.07 ± 0.10	−0.06 ± 0.17	3.10	462	1.44	−10.76	3.23	02
M51-GC2	202.507117	47.241845	19.18 ± 0.03	3.50 ± 0.00	1.52 ± 0.10	1.17 ± 0.17	2.77	271	1.35	−10.48	7.96	03
M51-GC3	202.469420	47.253906	19.31 ± 0.03	1.75 ± 0.00	1.25 ± 0.10	–	2.47	281	1.24	−10.35	8.80	00
NCG628-GC1	24.221429	15.788914	18.28 ± 0.03	2.51 ± 0.00	1.08 ± 0.16	1.82 ± 0.07	3.33	471	1.56	−11.66	7.84	03
NCG628-GC2	24.171023	15.782500	19.13 ± 0.03	1.90 ± 0.00	0.68 ± 0.16	0.28 ± 0.09	2.75	243	1.37	−10.81	0.52	02
NCG628-GC3	24.212973	15.734987	19.71 ± 0.03	3.15 ± 0.00	1.25 ± 0.16	–	2.62	183	1.16	−10.23	10.48	00

Table 6.

Open in new tab

Observational properties of the brightest three GCs in each sample galaxy.

ID	RA	DEC	I	(B − I)₀	(B − V)₀	(U − B)₀	FWHM	AREA	CI	M_F814W	r_gc (kpc)	FLAG
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)	(11)	(12)	(13)
M81-GC1	148.84125	69.110425	16.13 ± 0.03	2.06 ± 0.10	1.10 ± 0.10	1.63 ± 0.10	3.62	–	–	−11.66	3.03	02
M81-GC2	148.94123	69.050097	16.75 ± 0.03	2.24 ± 0.10	1.27 ± 0.10	2.05 ± 0.10	3.45	–	–	−11.03	1.54	03
M81-GC3	149.11440	69.019380	16.95 ± 0.03	1.78 ± 0.10	1.00 ± 0.10	1.43 ± 0.10	5.82	–	–	−10.84	5.87	02
M101-GC1	210.824946	54.318723	17.63 ± 0.02	2.51 ± 0.00	1.20 ± 0.17	1.31 ± 0.41	3.07	449	1.30	−11.57	4.00	03
M101-GC2	210.884651	54.414166	18.57 ± 0.02	2.74 ± 0.00	1.14 ± 0.17	–	3.38	394	1.50	−10.63	9.82	00
M101-GC3	210.884508	54.369237	19.10 ± 0.02	2.48 ± 0.00	1.46 ± 0.17	–	2.92	301	1.39	−10.10	6.31	00
NGC 4258-GC1	184.729270	47.264868	17.83 ± 0.00	1.63 ± 0.00	0.79 ± 0.10	–	2.69	311	1.16	−11.57	5.25	00
NGC 4258-GC2	184.865700	47.210389	17.89 ± 0.00	3.37 ± 0.01	1.13 ± 0.10	–	2.79	165	1.18	−11.50	16.78	00
NGC 4258-GC3	184.745970	47.301067	17.97 ± 0.00	2.15 ± 0.01	0.99 ± 0.10	0.43 ± 0.05	4.03	440	1.65	−11.42	0.69	02
M51-GC1	202.459584	47.174710	18.90 ± 0.03	2.05 ± 0.00	1.07 ± 0.10	−0.06 ± 0.17	3.10	462	1.44	−10.76	3.23	02
M51-GC2	202.507117	47.241845	19.18 ± 0.03	3.50 ± 0.00	1.52 ± 0.10	1.17 ± 0.17	2.77	271	1.35	−10.48	7.96	03
M51-GC3	202.469420	47.253906	19.31 ± 0.03	1.75 ± 0.00	1.25 ± 0.10	–	2.47	281	1.24	−10.35	8.80	00
NCG628-GC1	24.221429	15.788914	18.28 ± 0.03	2.51 ± 0.00	1.08 ± 0.16	1.82 ± 0.07	3.33	471	1.56	−11.66	7.84	03
NCG628-GC2	24.171023	15.782500	19.13 ± 0.03	1.90 ± 0.00	0.68 ± 0.16	0.28 ± 0.09	2.75	243	1.37	−10.81	0.52	02
NCG628-GC3	24.212973	15.734987	19.71 ± 0.03	3.15 ± 0.00	1.25 ± 0.16	–	2.62	183	1.16	−10.23	10.48	00

ID	RA	DEC	I	(B − I)₀	(B − V)₀	(U − B)₀	FWHM	AREA	CI	M_F814W	r_gc (kpc)	FLAG
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)	(11)	(12)	(13)
M81-GC1	148.84125	69.110425	16.13 ± 0.03	2.06 ± 0.10	1.10 ± 0.10	1.63 ± 0.10	3.62	–	–	−11.66	3.03	02
M81-GC2	148.94123	69.050097	16.75 ± 0.03	2.24 ± 0.10	1.27 ± 0.10	2.05 ± 0.10	3.45	–	–	−11.03	1.54	03
M81-GC3	149.11440	69.019380	16.95 ± 0.03	1.78 ± 0.10	1.00 ± 0.10	1.43 ± 0.10	5.82	–	–	−10.84	5.87	02
M101-GC1	210.824946	54.318723	17.63 ± 0.02	2.51 ± 0.00	1.20 ± 0.17	1.31 ± 0.41	3.07	449	1.30	−11.57	4.00	03
M101-GC2	210.884651	54.414166	18.57 ± 0.02	2.74 ± 0.00	1.14 ± 0.17	–	3.38	394	1.50	−10.63	9.82	00
M101-GC3	210.884508	54.369237	19.10 ± 0.02	2.48 ± 0.00	1.46 ± 0.17	–	2.92	301	1.39	−10.10	6.31	00
NGC 4258-GC1	184.729270	47.264868	17.83 ± 0.00	1.63 ± 0.00	0.79 ± 0.10	–	2.69	311	1.16	−11.57	5.25	00
NGC 4258-GC2	184.865700	47.210389	17.89 ± 0.00	3.37 ± 0.01	1.13 ± 0.10	–	2.79	165	1.18	−11.50	16.78	00
NGC 4258-GC3	184.745970	47.301067	17.97 ± 0.00	2.15 ± 0.01	0.99 ± 0.10	0.43 ± 0.05	4.03	440	1.65	−11.42	0.69	02
M51-GC1	202.459584	47.174710	18.90 ± 0.03	2.05 ± 0.00	1.07 ± 0.10	−0.06 ± 0.17	3.10	462	1.44	−10.76	3.23	02
M51-GC2	202.507117	47.241845	19.18 ± 0.03	3.50 ± 0.00	1.52 ± 0.10	1.17 ± 0.17	2.77	271	1.35	−10.48	7.96	03
M51-GC3	202.469420	47.253906	19.31 ± 0.03	1.75 ± 0.00	1.25 ± 0.10	–	2.47	281	1.24	−10.35	8.80	00
NCG628-GC1	24.221429	15.788914	18.28 ± 0.03	2.51 ± 0.00	1.08 ± 0.16	1.82 ± 0.07	3.33	471	1.56	−11.66	7.84	03
NCG628-GC2	24.171023	15.782500	19.13 ± 0.03	1.90 ± 0.00	0.68 ± 0.16	0.28 ± 0.09	2.75	243	1.37	−10.81	0.52	02
NCG628-GC3	24.212973	15.734987	19.71 ± 0.03	3.15 ± 0.00	1.25 ± 0.16	–	2.62	183	1.16	−10.23	10.48	00

Note. (1) Assigned name, which follows the convention of GAL-GCn, where GAL stands for galaxy name and n is 1 for the brightest object in the F814W filter, and increases sequentially as the magnitude increases. (2,3) Right ascension, Declination, coordinates in J2000. (4) Magnitude in F814W-band and magnitude error from SExtractor and aperture correction, added in quadrature, (5) (F435W − F814W)₀ colour, the error is the quadrature sum of the error in each band from SExtractor. (6) (F435W − F555W)₀ colour, error is quadrature sum as in column 5. In the case of M81 the colour is (F435W − F606W)₀. (7) (F336W − F435W)₀ colour, the error is the quadrature sum of the error in each band. In the case of M81 the colour is. (u − g)₀. (8) FWHM in pixel units from SExtractor. (9) AREA in pixels from SExtractor. (10) Concentration index, defined as the difference between magnitudes measured in 1 and 3 pixel radius apertures. (11) Absolute magnitude in F814W-band. (12) Galactocentric distance of the GC in kiloparsec. (13) FLAG classification: 00 clusters without U-band photometry; 01 determined as a reddened young cluster from U-band photometry; 02 – determined as bonafide GC from U-band photometry; and 03 – error in U-B is likely to be larger than the indicated formal error.

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