New Parallaxes of Galactic Cepheids from Spatially Scanning the Hubble Space Telescope: Implications for the Hubble Constant

Abstract

We present new parallax measurements of 7 long-period (> 10 days) Milky Way Cepheids (SS CMa, XY Car, VY Car, VX Per, WZ Sgr, X Pup and S Vul) using astrometry from spatial scanning of WFC3 on HST. Observations were obtained at 6 month intervals over 4 years. The distances are 1.7--3.6 kpc with a mean precision of 45 microarcseconds and a best of 29 microarcseconds (SNR = 14). The accuracy of the parallaxes is demonstrated through independent analyses of >100 reference stars. This raises to 10 the number of long-period Cepheids with significant parallax measurements, 8 obtained from this program. We also present high-precision F555W, F814W, and F160W magnitudes of these Cepheids, allowing a direct, zeropoint-independent comparison to >1800 extragalactic Cepheids in the hosts of 19 SNeIa. This sample addresses two outstanding systematic uncertainties affecting prior comparisons of Milky Way and extragalactic Cepheids used to calibrate H_0: their dissimilarity of periods and photometric systems. Comparing the new parallaxes to their predicted values derived from reversing the distance ladder gives a ratio (or independent scale for H_0) of 1.037+/-0.036, consistent with no change and inconsistent at the 3.5 sigma level with a ratio of 0.91 needed to match the value predicted by Planck+LCDM. Using these data instead to augment the Riess et al. (2016) measurement of H_0 improves the precision to 2.3%, yielding 73.48+/-1.66 km/s/Mpc, and tension with Planck+LCDM increases to 3.7 sigma. The future combination of Gaia parallaxes and HST spatial scanning photometry of 50 Milky Way Cepheids can support a < 1% calibration of H_0.

arXiv commentaccepted by ApJ, 15 pages of Text, 7 Tables, 13 Figures

References in corpus (31)

• PARSEC: stellar tracks and isochrones with the PAdova and TRieste Stellar Evolution Code
• A 2.4% Determination of the Local Value of the Hubble Constant
• The trouble with $H_0$
• Modelling the Galactic Interstellar Extinction Distribution in Three Dimensions
• An eclipsing binary distance to the Large Magellanic Cloud accurate to 2 per cent
• Gaia Data Release 1: Astrometry - one billion positions, two million proper motions and parallaxes
• H0LiCOW V. New COSMOGRAIL time delays of HE0435-1223: $H_0$ to 3.8% precision from strong lensing in a flat $\Lambda$CDM model
• Planck intermediate results. XLVI. Reduction of large-scale systematic effects in HFI polarization maps and estimation of the reionization optical depth
• Hubble Space Telescope Fine Guidance Sensor Parallaxes of Galactic Cepheid Variable Stars: Period-Luminosity Relations
• Toward a New Geometric Distance to the Active Galaxy NGC 4258. III. Final Results and the Hubble Constant
• Dark Energy Survey Year 1 Results: A Precise H0 Measurement from DES Y1, BAO, and D/H Data
• The influence of chemical composition on the properties of Cepheid stars. II-The iron content
• Cepheid Parallaxes and the Hubble Constant
• Astrometry and photometry with HST WFC3. II. Improved geometric-distortion corrections for 10 filters of the UVIS channel
• Measuring the Hubble constant with Type Ia supernovae as near-infrared standard candles
• Clarifying the Hubble constant tension with a Bayesian hierarchical model of the local distance ladder
• The first INTEGRAL-OMC catalogue of optically variable sources
• Sample variance in the local measurements of the Hubble constant
• Large Magellanic Cloud Near-Infrared Synoptic Survey. I. Cepheid variables and the calibration of the Leavitt Law
• Insensitivity of The Distance Ladder Hubble Constant Determination to Cepheid Calibration Modeling Choices
• Determining $H_0$ with Bayesian hyper-parameters
• Parallax Beyond a Kiloparsec from Spatially Scanning the Wide Field Camera 3 on the Hubble Space Telescope
• A Comparison of Cosmological Parameters Determined from CMB Temperature Power Spectra from the South Pole Telescope and the Planck Satellite
• Parallax of Galactic Cepheids from Spatially Scanning the Wide Field Camera 3 on the Hubble Space Telescope: The Case of SS Canis Majoris
• New NIR light-curve templates for classical Cepheids
• The Carnegie-Chicago Hubble Program. III. The Distance to NGC 1365 via the Tip of the Red Giant Branch
• A test of Gaia Data Release 1 parallaxes: implications for the local distance scale
• A Probabilistic Approach to Fitting Period-Luminosity Relations and Validating Gaia Parallaxes
• On the local variation of the Hubble constant
• Vetting Galactic Leavitt Law Calibrators using Radial Velocities: On the Variability, Binarity, and Possible Parallax Error of 19 Long-period Cepheids
• The variance of the locally measured Hubble parameter explained with different estimators

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• A Chi-Squared Analysis of the Measurements of Two Cosmological Parameters Over Time
• The method of the kernel of the evolution equation in the gravity theory
• Equipartition Dark Energy
• An Isolated Stellar-Mass Black Hole Detected Through Astrometric Microlensing
• Demonstration of Plate Analysis, an algorithm for precise relative astrometry