Large Magellanic Cloud Cepheid Standards Provide a 1% Foundation for the Determination of the Hubble Constant and Stronger Evidence for Physics beyond ΛCDM

@article{Riess2019LargeMC,
  title={Large Magellanic Cloud Cepheid Standards Provide a 1% Foundation for the Determination of the Hubble Constant and Stronger Evidence for Physics beyond ΛCDM},
  author={A. Riess and S. Casertano and W. Yuan and L. Macri and D. Scolnic},
  journal={The Astrophysical Journal},
  year={2019},
  volume={876},
  pages={85}
}
  • A. Riess, S. Casertano, +2 authors D. Scolnic
  • Published 2019
  • Physics
  • The Astrophysical Journal
  • We present an improved determination of the Hubble constant (H0) from Hubble Space Telescope (HST) observations of 70 long-period Cepheids in the Large Magellanic Cloud. These were obtained with the same WFC3 photometric system used to measure Cepheids in the hosts of Type Ia supernovae. Gyroscopic control of HST was employed to reduce overheads while collecting a large sample of widely-separated Cepheids. The Cepheid Period-Luminosity relation provides a zeropoint-free link with 0.4% precision… CONTINUE READING
    558 Citations

    Figures and Tables from this paper.

    A measurement of the Hubble constant from Type II supernovae.
    • 7
    • Highly Influenced
    • PDF
    An Improved Distance to NGC 4258 and Its Implications for the Hubble Constant
    • 32
    • PDF
    A thin shell of ionized gas explaining the IR excess of classical Cepheids
    • 5
    • PDF
    The Carnegie Chicago Hubble Program. VI. Tip of the Red Giant Branch Distances to M66 and M96 of the Leo I Group
    • 2
    • Highly Influenced
    • PDF

    References

    SHOWING 1-10 OF 26 REFERENCES
    Strong Dependence of Type Ia Supernova Standardization on the Local Specific Star Formation Rate
    • 37
    • PDF
    Calibration of the WFC3-IR Count-rate Nonlinearity, Sub-percent Accuracy for a Factor of a Million in Flux
    • 4
    • PDF
    Should Type Ia Supernova Distances Be Corrected for Their Local Environments
    • 34
    • PDF
    An Independent Determination of WFC3-IR Zeropoints and Count Rate Non-Linearity from 2MASS Asterisms
    • 18
    • Highly Influential