Table 3
Comparison of Galactic bulge Type II Cepheids with PLRs from literature.
| Band | Slope | σ | N | Host | Type | Source | |T| | p(t) |
|
|
||||||||
| W V,I | –2.294±0.055 | 0.342 | 212 | GB | B+W | TW | – | – |
| –2.677±0.052 | 0.176 | 186 | LMC | all | TW | 4.265 | 0.000 | |
| –2.508±0.074 | 0.111 | 133 | LMC | B+W | TW | 1.171 | 0.242 | |
| K s | –2.189±0.056 | 0.234 | 201 | GB | B+W | TW | – | – |
| –2.240±0.140 | 0.410 | 39 | GB | all | G08 | 0.462 | 0.644 | |
| –2.395±0.027 | 0.228 | 167 | LMC | all | B17 | 3.621 | 0.000 | |
| –2.232±0.037 | 0.180 | 119 | LMC | B+W | B17 | 0.648 | 0.517 | |
| –2.413±0.053 | 0.150 | 43 | GGC | all | M06 | 2.309 | 0.022 | |
| –2.425±0.295 | 0.075 | 9 | MW | alla | B17 | 0.243 | 0.808 | |
Notes. B+W: BL Herculis and W Virginis;
represents absolute calibration of PLRs based on parallaxes for T2Cs and RRLs. Source column represents – TW: this work; G08: Groenewegen et al. (2008); B17: Bhardwaj et al. (2017); M06: Matsunaga et al. (2006) PLR with updated mean magnitudes from Bhardwaj et al. (2017). Last two columns represent the observed value of the t-statistic (|T|) and the probability, p(t), of acceptance of the null hypothesis.
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