The Parallax of Omega Centauri Measured from Gaia EDR3 and a Direct, Geometric Calibration of the Tip of the Red Giant Branch and the Hubble Constant

Abstract

We use data from the ESA Gaia mission Early Data Release 3 (EDR3) to measure the trigonometric parallax of $\omega$ Cen, the first high precision parallax measurement for the most massive globular cluster in the Milky Way. We use a combination of positional and high quality proper motion data from EDR3 to identify over 100,000 cluster members, of which 67,000 are in the magnitude and color range where EDR3 parallaxes are best calibrated. We find the estimated parallax to be robust, demonstrating good control of systematics within the color-magnitude diagram of the cluster. We find a parallax for the cluster of $0.191\pm 0.001$ (statistical) $\pm 0.004$ (systematic) mas (2.2\% total uncertainty) corresponding to a distance of $5.24\pm 0.11$ kpc. The parallax of $\omega$ Cen provides a unique opportunity to directly and geometrically calibrate the luminosity of the Tip of the Red Giant Branch (TRGB) because it is the only cluster with sufficient mass to provide enough red giant stars, more than 100 one magnitude below the tip, for a precise, model-free measurement of the tip. Combined with the pre-existing and most widely-used measurements of the tip and foreground Milky Way extinction, we find $M_{I,TRGB}=-3.97\pm 0.06$ mag for the $I$-band luminosity of the blue edge. Using the TRGB luminosity calibrated from the Gaia EDR3 parallax of $\omega$ Cen to calibrate the luminosity of SNIa results in a value for the Hubble constant of $H_0=72.1\pm 2.0$ km s${}^{-1}$ Mpc${}^{-1}$. We make the data for the stars in $\omega$ Cen available electronically and encourage independent analyses of the results presented here.

arXiv comment13 pages, 8 Figures, 2 Tables

References in corpus (55)

• Gaia Data Release 2. Summary of the contents and survey properties
• Measuring Reddening with SDSS Stellar Spectra and Recalibrating SFD
• The Gaia mission
• Gaia Data Release 2: The astrometric solution
• Tensions between the Early and the Late Universe
• The Carnegie-Chicago Hubble Program. VIII. An Independent Determination of the Hubble Constant Based on the Tip of the Red Giant Branch
• A distance to the Large Magellanic Cloud that is precise to one per cent
• Gaia Data Release 2: Kinematics of globular clusters and dwarf galaxies around the Milky Way
• Gaia Data Release 2: Catalogue validation
• Milky Way Cepheid Standards for Measuring Cosmic Distances and Application to Gaia DR2: Implications for the Hubble Constant
• A catalogue of masses, structural parameters and velocity dispersion profiles of 112 Milky Way globular clusters
• Carnegie Hubble Program: A Mid-Infrared Calibration of the Hubble Constant
• Mean proper motions, space orbits and velocity dispersion profiles of Galactic globular clusters derived from Gaia DR2 data
• Calibration of the Tip of the Red Giant Branch (TRGB)
• Hubble Space Telescope Fine Guidance Sensor Parallaxes of Galactic Cepheid Variable Stars: Period-Luminosity Relations
• Tip of the Red Giant Branch Distances. II. Zero-Point Calibration
• An Improved Distance to NGC 4258 and its Implications for the Hubble Constant
• A new Cepheid distance to the maser-host galaxy NGC 4258 and its implications for the Hubble Constant
• New evidence for the complex struscture of the RGB of Omega Cen
• Hubble Space Telescope Observations of Mira Variables in the Type Ia Supernova Host NGC 1559: An Alternative Candle to Measure the Hubble Constant
• Distances to PHANGS Galaxies: New Tip of the Red Giant Branch Measurements and Adopted Distances
• Consistent Calibration of the Tip of the Red Giant Branch in the Large Magellanic Cloud on the Hubble Space Telescope Photometric System and a Re-determination of the Hubble Constant
• A step toward the calibration of the RGB Tip as a Standard Candle
• Axion and neutrino bounds improved with new calibrations of the tip of the red-giant branch using geometric distance determinations
• New Optical Reddening Maps of the Large and Small Magellanic Clouds
• Confirmation of the $Gaia$ DR2 parallax zero-point offset using asteroseismology and spectroscopy in the $Kepler$ field
• Distance Scale Zero-Points from Galactic RR Lyrae Star Parallaxes
• First Cosmology Results Using Type Ia Supernovae From the Dark Energy Survey: Analysis, Systematic Uncertainties, and Validation
• Cluster AgeS Experiment: The Age and Distance of the Globular Cluster omega Centauri Determined from Observations of the Eclipsing Binary OGLEGC17
• New HST WFC3/UVIS observations augment the stellar-population complexity of omega Centauri
• Radial distribution of the multiple stellar populations in omega Centauri
• The HST large programme on $\omega$ Centauri - II. internal kinematics
• The Tip of the Red Giant Branch Distances to Type Ia Supernova Host Galaxies. IV. Color Dependence and Zero-Point Calibration
• Hubble Space Telescope proper motion (HSTPROMO) catalogs of Galactic globular clusters. III. Dynamical distances and mass-to-light ratios
• The State-of-the-Art HST Astro-Photometric Analysis of the core of ωCentauri. III. The Main Sequence's Multiple Populations Galore
• The HST Large Program on Omega Centauri. I. Multiple stellar populations at the bottom of the main sequence probed in NIR-Optical
• Metallicity-corrected Tip of the Red Giant Branch Distance to NGC 4258
• Empirical calibration of the reddening maps in the Magellanic Clouds
• Distances to the globular clusters 47 Tucanae and NGC 362 using Gaia DR2 parallaxes
• Bayesian Mass Estimates of the Milky Way II: The dark and light sides of parameter assumptions
• The Carnegie-Chicago Hubble Program. IX. Calibration of the Tip of the Red Giant Branch Method in the Mega-Maser Host Galaxy, NGC4258 (M106)
• The Carnegie-Chicago Hubble Program. VII. The Distance to M101 via the Optical Tip of the Red Giant Branch Method
• Relative distances of Omega Centauri and 47 Tucanae
• Reddening distribution across the center of the globular cluster Omega Centauri
• Four stellar populations and extreme helium variation in the massive outer-halo globular cluster NGC 2419
• Using the Tip of the Red Giant Branch as a Distance Indicator in the Near Infrared
• The Cluster Ages Experiment (CASE). VIII. Age and Distance of the Globular Cluster 47 Tuc from the Analysis of Two Detached Eclipsing Binaries
• The Tip of the Red Giant Branch Distances to Type Ia Supernova Host Galaxies. III. NGC 4038/39 and NGC 5584
• On a new method to estimate distance, reddening and metallicity of RR Lyrae stars using optical/near-infrared ($B$,$V$,$I$,$J$,$H$,$K$) mean magnitudes: $\omega$ Centauri as a first test case
• The not so simple globular cluster $\omega$ Cen. I. Spatial distribution of the multiple stellar populations
• RAVE stars tidally stripped/ejected from $\omega$ Centauri globular cluster
• The Araucaria Project. Multi-band calibrations of the TRGB absolute magnitude
• Gaia Parallax of Milky Way Globular Clusters -- A Solution of Mixture Model
• STREGA: STRucture and Evolution of the GAlaxy. I. Survey Overview and First Results
• Galactic Calibration of the Tip of the Red Giant Branch

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• Detecting Globular Cluster Tidal Extensions with Bayesian Inference: I. Analysis of $\omega$ Centauri with Gaia EDR3
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• Effects of a local physics change on the SH0ES determination of $H_0$
• A Geometric Calibration of the Tip of the Red Giant Branch in the Milky Way using Gaia DR3
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• Fundamental Physics and Cosmology with TianQin
• Unveiling the Universe with Emerging Cosmological Probes
• Estimating Hubble Constant with Gravitational Observations: A Concise Review
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• Hubble tension and matter inhomogeneities: a theoretical perspective
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• The Chicago Carnegie Hubble Program: Improving the Calibration of SNe Ia with JWST Measurements of the Tip of the Red Giant Branch
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• Gaia DR3 and nearby galaxies: where do foregrounds matter?
• Mapping the cosmic expansion history from LIGO-Virgo-KAGRA in synergy with DESI and SPHEREx
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• Disruption of a Giant: Spectroscopic Identification of Members in the Periphery and Tidal Tails of $\omega$ Centauri