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Table 1
Photometry and color indices of the program stars.
| Star | V | B − V | V − R | M [3.6]∗ | [3.6]−[4.5] | J− [3.6] | J − H | H − K | Q1 | Q2 | ||
| Name | (mag) | (mag) | (mag) | (mag) | (mag) | (mag) | (mag) | (mag) | ||||
|
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| Sex A 1 | 18.547 | 1.493 ± 0.008 | 1.017 ± 0.005 | −11.31 | 0.052 | 1.05 ± 0.05 | 0.932 ± 0.069 | 0.175 ± 0.116 | 0.30 | 0.53 | ||
| Sex A 2 | 19.097 | 1.484 ± 0.011 | 0.986 ± 0.006 | −10.71 | 0.121 | 1.20 ± 0.08 | 0.900 ± 0.108 | −0.034 ± 0.181 | 0.25 | −0.28 | ||
| Sex A 3 | 18.650 | 0.835 ± 0.006 | 0.485 ± 0.005 | −9.40 | 0.049 | 0.53 ± 0.16 | 0.451 ± 0.281 | 1.632 ± 0.227 | 0.61 | – | ||
| Sex A 4 | 18.295 | 1.860 ± 0.008 | 0.935 ± 0.005 | −11.11 | −0.064 | 1.08 ± 0.05 | 0.902 ± 0.084 | 0.058 ± 0.135 | 0.30 | 0.40 | ||
| Sex A 5 | 18.322 | 1.802 ± 0.008 | 0.918 ± 0.005 | −11.11 | −0.027 | 1.16 ± 0.06 | 0.763 ± 0.075 | 0.176 ± 0.114 | 0.32 | 0.61 | ||
| Sex A 6 | 18.596 | 1.899 ± 0.009 | 0.992 ± 0.005 | −11.11 | −0.004 | 1.26 ± 0.06 | 0.883 ± 0.090 | 0.001 ± 0.155 | 0.26 | −0.18 | ||
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| IC 1613 1 | 18.98† | – | – | −9.52 | 0.667 | 3.26 ± 0.05 | 0.337 ± 0.087 | 0.973 ± 0.091 | −0.53 | −10.38 | ||
| IC 1613 2 | 17.258 | 1.513 ± 0.006 | 0.778 ± 0.011 | −11.02 | −0.009 | 0.90 ± 0.03 | 0.692 ± 0.037 | 0.212 ± 0.044 | 0.32 | 0.65 | ||
Notes.
(∗)
The distance modulus that we used is 25.61 ± 0.07 mag for Sextans A (Dolphin et al. 2003), and 24.32 ± 0.06 mag for IC 1613 (Dolphin et al. 2001).
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