Table 5
Spectral types and photometry for stars in the region.
| Star | Spectral type | V | B − V | U − B | (B − V)0 | (U − B)0 | E(B − V) | E(U − B) | V 0 |
|
|
|||||||||
| a801∗ | B1 V | 12.559 | 0.682 | −0.171 | −0.260 | −0.950 | 0.942 | 0.779 | 9.639 |
| a802 | B1 II | 11.525 | 1.211 | 0.101 | −0.240 | −0.990 | 1.451 | 1.091 | 7.027 |
| a803 | B2 III-IV | 12.152 | 0.712 | −0.068 | −0.240 | −0.930 | 0.952 | 0.863 | 9.201 |
| a805 | O7 II | 12.827 | 1.833 | 0.446 | −0.320 | −1.170 | 2.153 | 1.616 | 6.153 |
| A507∗ | B1 V | 14.733 | 1.554 | 0.373 | −0.260 | −0.950 | 1.814 | 1.323 | 9.110 |
| A263∗ | B1 V | 14.719 | 1.546 | 0.360 | −0.260 | −0.950 | 1.806 | 1.310 | 9.120 |
| A253∗ | B0.5 V | 14.646 | 1.582 | 0.406 | −0.280 | −1.000 | 1.862 | 1.406 | 8.874 |
| A197∗ | B1 V | 14.900 | 1.630 | 0.504 | −0.260 | −0.950 | 1.890 | 1.454 | 9.041 |
| A514∗ | B0.5 V | 14.674 | 1.923 | 0.641 | −0.280 | −1.000 | 2.203 | 1.641 | 7.845 |
| A515∗ | B0.5 V | 14.414 | 1.881 | 0.624 | −0.280 | −1.000 | 2.161 | 1.624 | 7.715 |
| b201 | O7 V | 12.434 | 1.261 | 0.059 | −0.320 | −1.170 | 1.581 | 1.229 | 7.533 |
| C81 | O7 V | 12.605 | 1.726 | 0.390 | −0.320 | −1.170 | 2.046 | 1.560 | 6.262 |
| C84 | B1 V | 12.636 | 0.863 | −0.075 | −0.260 | −0.950 | 1.123 | 0.876 | 9.155 |
| C129 | B7 III | 13.025 | 0.785 | 0.235 | −0.120 | −0.440 | 0.905 | 0.675 | 10.220 |
Notes. Stars marked with “*” have been observed with grism #14. Stars not marked have been observed with grism #16. The intrinsic colours from Fitzgerald (1970) are used to derive excesses and dereddened magnitudes. These agree well with those obtained from CHORIZOS, which should be considered more accurate, as the code takes colour terms into full account.
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