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Table 3
Orientation measurements of the SMC disk.
| Data | Parameters before excluding the outliers | Parameters after excluding those | ||||
| which show deviation >6 kpc | ||||||
|
|
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| Number | i (degrees) | φ (degrees) | Number | i (degrees) | φ (degrees) | |
|
|
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| Fundamental-mode Cepheids | ||||||
|
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| Cepheids with log(P) < 0.47 | 1764 | 63.1 ± 0.98 | 156.1 ± 8.8 | 1549 | 63.2 ± 1.09 | 151.4 ± 9.2 |
| Cepheids with log(P) > 0.47 | 778 | 64.9 ± 1.61 | 148.7 ± 13.7 | 683 | 64.9 ± 1.66 | 154.9 ± 15.6 |
| Combined sample | 2542 | 63.3 ± 0.85 | 154.5 ± 7.4 | 2230 | 63.1 ± 0.96 | 151.5 ± 7.8 |
|
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| First-overtone Cepheids | ||||||
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| Cepheids with log(P) < 0.029 | 559 | 67.2 ± 0.90 | 174.1 ± 16.1 | 440 | 65.3 ± 1.21 | 174.2 ± 18.4 |
| Cepheids with log(P) > 0.029 | 1041 | 66.8 ± 1.04 | 154.3 ± 11.5 | 927 | 68.4 ± 0.95 | 156.3 ± 12.4 |
| Combined sample | 1600 | 66.7 ± 0.72 | 163.0 ± 9.6 | 1367 | 66.3 ± 0.86 | 159.3 ± 10.2 |
|
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| Combined sample of fundamental-mode and first-overtone | 4142 | 64.6 ± 0.58 | 158.3 ± 5.9 | 3591 | 64.4 ± 0.66 | 155.3 ± 6.3 |
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