CEPHEID PERIOD–LUMINOSITY RELATIONS IN THE NEAR-INFRARED AND THE DISTANCE TO M31 FROM THE HUBBLE SPACE TELESCOPE WIDE FIELD CAMERA 3

@article{Riess2012CEPHEIDPR,
  title={CEPHEID PERIOD–LUMINOSITY RELATIONS IN THE NEAR-INFRARED AND THE DISTANCE TO M31 FROM THE HUBBLE SPACE TELESCOPE WIDE FIELD CAMERA 3},
  author={Adam G. Riess and Juergen Fliri and David Valls-Gabaud},
  journal={The Astrophysical Journal},
  year={2012},
  volume={745}
}
We present measurements of 68 classical Cepheids, most detected from the Canada–France–Hawaii Telescope POMME Survey, with periods from 10 to 78 days observed in the near-infrared by the Panchromatic Hubble Andromeda Treasury Program using the Wide Field Camera 3 (WFC3) on the Hubble Space Telescope (HST). The combination of HST's resolution and the use of near-infrared measurements provide a dramatic reduction in the dispersion of the period–luminosity relation over the present optical, ground… 

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