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Table 5

Distances for Cepheids with HST parallax measurements from Benedict et al. (2007).

(1) (2) (3) (4) (5) (6)
ID log (P) d(HST) d(IRSB) Δd σd)
(pc) (pc) (pc) (pc)

FF Aql 0.650390 355.9 369.8 14.0 42.3
RT Aur 0.571489 416.7 389.0  −27.6 33.0
 Car 1.550820 497.5 517.6 20.1 47.9
δ Cep 0.729678 273.2 266.7  −6.5 20.3
β Dor 0.993131 318.5 326.6 8.1 22.0
ζ Gem 1.006500 359.7 385.5 25.8 38.3
W Sgr 0.880529 438.6 216.8  −221.8 71.1
X Sgr 0.845893 333.3 322.1  −11.2 28.1
Y Sgr 0.761428 469.5 436.5  −33.0 75.6
T Vul 0.646934 526.3 542.0 15.7 59.4

Notes. The HST distances are given in Col. 3, the IRSB distances using our preferred p-factor relation from Eq. (7) are given in Col. 4 and the difference in Col. 5. The uncertainty on the difference is given in the last column. † Not considered in the fits. This star is a known spectroscopic binary.

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