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Table 2

Cross-identification of 43 X-ray sources from Claeskens et al. (2011) with CrW optical photometry.

ID(X-ray) α(J2000) δ(J2000) V (VI) (VR) (BV) (UB) Spectral type YSO number

#1 159.894496 –59.737510 20.386 2.860 1.438 2.250 N/A 183
#2 159.947016 –59.608981 12.991 0.809 0.436 0.653 –0.042
#3 159.948029 –59.746218 10.470 N/A N/A 0.440 N/A F5 V
#4 159.983333 –59.618056 11.279 N/A N/A 0.668 N/A
#5 160.042973 –59.619011 17.720 2.299 1.195 1.721 1.051 57
#6 160.051779 –59.802809 8.140 N/A N/A –0.020 –0.780 O8.5 III
#7 160.069977 –59.534346 14.720 1.386 0.787 1.006 0.673 G6 III 13
#8
#9 160.132138 –59.778854 8.880 N/A N/A –0.030 –0.900 O9.7 V
#10 160.161981 –59.462519 12.839 0.807 0.419 0.590 0.028 F8 V
#11 160.174252 –59.621872 12.609 0.429 0.258 0.320 0.108 A5 V
#12 160.174412 –59.539547 14.974 0.954 0.540 0.736 0.149 G9 V
#13 160.184003 –59.826372 17.565 3.222 1.551 2.103 1.018
#14 160.193248 –59.700809 19.680 2.144 1.115 1.544 N/A
#15 160.214424 –59.622191 15.365 1.332 0.716 1.109 0.609 G8 III 18
#16
#17 160.229239 –59.639602 17.422 1.552 0.835 1.217 0.607 48
#18 160.230446 –59.710999 18.214 1.586 0.928 1.086 0.373 F8 V
#19 160.235367 –59.862561 11.363 0.340 N/A N/A N/A A1 III
#20 160.247070 –59.457005 13.031 1.825 0.860 1.340 –0.031 O7
#21
#22a 160.322983 –59.676915 6.420 N/A N/A 0.080 –0.730
#23 160.335850 –59.589894 11.692 0.718 N/A 0.841 –0.285 F3 V
#24 160.338038 –59.659587 17.131 1.316 0.758 0.978 0.259
#25
#26 160.362639 –59.656561 16.698 1.334 0.774 0.896 0.494
#27 160.364564 –59.686933 16.339 1.174 0.658 0.903 0.215
#28 160.387108 –59.604288 19.416 2.737 1.136 1.667 N/A
#29 160.426017 –59.635431 16.982 1.335 0.712 1.054 0.482
#30 160.437963 –59.807270 19.050 2.058 0.922 1.818 N/A
#31 160.464076 –59.720771 12.626 0.782 0.442 0.550 –0.019
#32 160.478811 –59.689836 13.146 1.224 0.793 0.935 0.923 G3 V-III
#33
#34
#35
#36
#37 160.523400 –59.604232 14.022 0.554 0.316 0.357 0.158 A1 V
#38 160.556738 –59.599388 18.204 2.910 1.446 2.081 0.479 87
#39 160.564481 –59.565945 19.215 2.738 1.145 1.679 N/A
#40 160.603836 –59.669004 14.842 1.105 0.636 0.576 0.164 G8  V
#41 160.636112 –59.611374 16.242 1.834 0.975 1.461 1.079 30
#42 160.652591 –59.731771 15.372 1.454 0.764 1.096 0.746 G9  III
#43 160.679111 –59.591296 15.898 1.365 0.738 1.165 0.425

Notes. Stars brighter than V = 11.3 are from the literature. The YSOs identified in Sect. 4.2 are also mentioned in the last column.

(a)

WR 22 itself;

(†)

The YSO entry numbers are from Table 3.

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