Cepheid distances from infrared long-baseline interferometry II . Calibration of the Period – Radius and Period – Luminosity relations

@inproceedings{Kervella2004CepheidDF,
  title={Cepheid distances from infrared long-baseline interferometry II . Calibration of the Period – Radius and Period – Luminosity relations},
  author={Pierre Kervella and David Bersier and Denis Mourard and Nicolas Nardetto and Vincent Coud{\'e} du Foresto},
  year={2004}
}
Using our interferometric angular diameter measurements of seven classical Cepheids reported in Kervella et al. (2003, Paper I), complemented by previously existing measurements, we derive new calibrations of the Cepheids Period–Radius (P–R) and Period–Luminosity (P–L) relations. We obtain a P–R relation of log R = [0.767 ± 0.009] log P + [1.091 ± 0.011], only 1 σ away from the relation obtained by Gieren et al. (1998). We therefore confirm their P–R relation at a level of ∆(log R) = ±0.02. We… CONTINUE READING

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