First cosmological results using Type Ia supernovae from the Dark Energy Survey: measurement of the Hubble constant
By E. MacAulay, R. Nichol, David Bacon, D. Brout, T. Davis, B. Zhang, Bruce A. Bassett, D. Scolnic, A. Moller, C. D'Andrea and 99 more. Monthly notices of the Royal Astronomical Society, 2018
209 citations recorded by the source corpus.
We present an improved measurement of the Hubble constant (H0) using the ‘inverse distance ladder’ method, which adds the information from 207 Type Ia supernovae (SNe Ia) from the Dark Energy Survey (DES) at redshift 0.018 < z < 0.85 to existing distance measurements of 122 low-redshift (z < 0.07) SNe Ia (Low-z) and measurements of Baryon Acoustic Oscillations (BAOs). Whereas traditional measurements of H0 with SNe Ia use a distance ladder of parallax and Cepheid variable stars, the inverse distance ladder relies on absolute distance measurements from the BAOs to calibrate the intrinsic magnitude of the SNe Ia. We find H0 = 67.8 ± 1.3 km s−1 Mpc−1 (statistical and systematic uncertainties, 68 per cent confidence). Our measurement makes minimal assumptions about the underlying cosmological model, and our analysis was blinded to reduce confirmation bias. We examine possible systematic uncertainties and all are below the statistical uncertainties. Our H0 value is consistent with estimates derived from the Cosmic Microwave Background assuming a ΛCDM universe.
Subfields: Astronomy and Astrophysics
View Paper: https://www.semanticscholar.org/paper/6a2c43243292431c6819cd8f9c5028ab4d26cbaf
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In Astronomy and Astrophysics
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Citations in the corpus
- H0LiCOW – XIII. A 2.4 per cent measurement of H0 from lensed quasars: 5.3σ tension between early- and late-Universe probes (2019, methodology): “The inverse distance ladder method uses distances measured from baryon acoustic oscillations (BAO) in this way (e.g. Aubourg et al. 2015; Cuesta et al. 2015; Macaulay et al. 2019).”
- The Hubble Constant from Infrared Surface Brightness Fluctuation Distances (2021, unknown): “In addition, an analysis of the “inverse distance ladder” of SNe Ia calibrated from BAO gives H0= 67.8± 1.3 km s −1 Mpc−1(Macaulay et al. 2019).”
- Large Magellanic Cloud Cepheid Standards Provide a 1% Foundation for the Determination of the Hubble Constant and Stronger Evidence for Physics beyond ΛCDM (2019, unknown): “…the CMB or ΩB with baryon acoustic oscillation (BAO) data (Addison et al. 2018) and from “inverse distance ladders,” such as the one built by the Dark Energy Survey that is calibrated from the sound horizon at z∼1000 (Macaulay et al. 2019, see Discussion for further consideration of these results).”