Table 2
PLRs (M = αlog P + β) of fundamental mode Cepheids for Z = 0.014, 0.006, and 0.002, determined separately on blue and red IS edges as well as for each of the three IS crossings in four photometric bands and Wesenheit indices (cf. Eqs. (1) and (2)).
| Z = 0.014 | Z = 0.006 | Z = 0.002 | |||||||||||
| Band | Blue edge | Red edge | Blue edge | Red edge | Blue edge | Red edge | |||||||
| α b | β b | α r | β r | α b | β b | α r | β r | α b | β b | α r | β r | ||
|
|
|||||||||||||
| V | 1st | –3.040 | –1.600 | –2.602 | –1.037 | –3.162 | –1.617 | –2.791 | –1.003 | –3.107 | –1.609 | –2.943 | –0.984 |
| V | 2nd | –2.878 | –1.619 | –2.008 | –1.487 | –2.836 | –1.793 | –2.281 | –1.265 | –2.978 | –1.607 | –2.642 | –1.043 |
| V | 3rd | –2.816 | –1.664 | –1.761 | –1.766 | –2.859 | –1.655 | –2.077 | –1.465 | –3.046 | –1.435 | –2.461 | –1.063 |
|
|
|||||||||||||
| H | 1st | –3.483 | –2.570 | –3.316 | –2.353 | –3.543 | –2.549 | –3.389 | –2.300 | –3.503 | –2.499 | –3.452 | –2.248 |
| H | 2nd | –3.389 | –2.519 | –2.981 | –2.540 | –3.278 | –2.670 | –3.086 | –2.362 | –3.387 | –2.490 | –3.276 | –2.218 |
| H | 3rd | –3.286 | –2.579 | –2.927 | –2.580 | –3.279 | –2.549 | –3.026 | –2.391 | –3.421 | –2.352 | –3.212 | –2.133 |
|
|
|||||||||||||
| W VI | 1st | –3.570 | –2.809 | –3.371 | –2.632 | –3.635 | –2.782 | –3.431 | –2.581 | –3.599 | –2.722 | –3.499 | –2.533 |
| W VI | 2nd | –3.442 | –2.789 | –3.020 | –2.825 | –3.344 | –2.924 | –3.096 | –2.675 | –3.466 | –2.727 | –3.292 | –2.525 |
| W VI | 3rd | –3.324 | –2.861 | –3.106 | –2.716 | –3.320 | –2.828 | –3.114 | –2.629 | –3.478 | –2.609 | –3.234 | –2.435 |
|
|
|||||||||||||
| W H,VI | 1st | –3.569 | –2.765 | –3.440 | –2.609 | –3.619 | –2.737 | –3.492 | –2.554 | –3.582 | –2.678 | –3.541 | –2.497 |
| W H,VI | 2nd | –3.480 | –2.707 | –3.143 | –2.755 | –3.360 | –2.852 | –3.217 | –2.588 | –3.466 | –2.670 | –3.381 | –2.456 |
| W H,VI | 3rd | –3.367 | –2.772 | –3.143 | –2.733 | –3.353 | –2.738 | –3.193 | –2.578 | –3.491 | –2.541 | –3.337 | –2.354 |
Notes. Each PLR is obtained as an average over the three initial rotation speeds. All magnitudes are determined using the interpolation program and data by Worthey & Lee (2011). The WVI relations are shown in Fig. 8.
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