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Table 5
PL and MV− [Fe/H] relations for RR Lyrae stars based on TGAS parallaxes.
| Relation | rms | ||
| (mag) | |||
|
|
|||
| PMKs 195 stars (LSQ) | −2.73log P−(1.06 ± 0.04) | 0.84 | |
| PMKs 200 stars (ABL) | −2.73log P−(1.26 ± 0.04) | 0.90 | |
| PMKs 200 stars (BA) | −2.73log P−(1.24 ± 0.05) | 1.02 | |
|
|
|||
| PMKsZ 195 stars (LSQ) | −2.73log P−(0.01 ± 0.07) [Fe/H] −(1.08 ± 0.09) | 0.84 | |
| PMKsZ 200 stars (ABL) | −2.73log P + (0.07 ± 0.07) [Fe/H] −(1.17 ± 0.10) | 0.89 | |
| PMKsZ 200 stars (BA) |
|
1.02 | |
|
|
|||
| PMW1 193 stars (LSQ) | −2.44log P−(1.02 ± 0.04) | 0.82 | |
| PMW1 198 stars (ABL) | −2.44log P−(1.21 ± 0.04) | 0.87 | |
| PMW1 198 stars (BA) | −2.44log P−(1.20 ± 0.05) | 1.02 | |
|
|
|||
| MV− [Fe/H] 195 stars (LSQ) | 0.214 [Fe/H] + (1.01 ± 0.04) | 0.82 | |
| MV− [Fe/H] 200 stars (ABL) | 0.214 [Fe/H] + (0.82 ± 0.04) | 0.87 | |
| MV− [Fe/H] 200 stars (BA) |
|
1.21 | |
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