Current Challenges in Cepheid Distance Calibrations Using Gaia EDR3

Abstract

Using parallaxes from Gaia Early Data Release 3 (EDR3), we determine multi-wavelength BVI, JHK, and [3.6] & [4.5] micron absolute magnitudes for 37 nearby Milky Way Cepheids, covering the period range between 5 and 60 days. We apply these period-luminosity relations to Cepheids in the Large and Small Magellanic Clouds, and find that the derived distances are significantly discrepant with the geometric distances according to detached eclipsing binaries (DEBs). We explore several potential causes of these issues, including reddening, metallicity, and the existence of an additional zero-point offset, but none provide a sufficient reconciliation with both DEB distances. We conclude that the combination of the systematic uncertainties on the EDR3 parallaxes with the uncertainties on the effect of metallicity on the Cepheid distance scale leads to a systematic error floor of approximately 3%. We therefore find that the EDR3 data is not sufficiently accurate in the regime of these bright Cepheids to determine extragalactic distances precise to the 1% level at this time, in agreement with a number of contemporary studies.

arXiv comment23 pages, 9 figures, 11 tables. Accepted for publication in ApJ

References in corpus (55)

• SciPy 1.0--Fundamental Algorithms for Scientific Computing in Python
• Astropy: A Community Python Package for Astronomy
• The NumPy array: a structure for efficient numerical computation
• Binary companions of evolved stars in APOGEE DR14: Search method and catalog of ~5,000 companions
• Final Results from the Hubble Space Telescope Key Project to Measure the Hubble Constant
• Correcting for the Effects of Interstellar Extinction
• Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties
• A 2.4% Determination of the Local Value of the Hubble Constant
• Gaia Data Release 2: The astrometric solution
• Large Magellanic Cloud Cepheid Standards Provide a 1% Foundation for the Determination of the Hubble Constant and Stronger Evidence for Physics Beyond LambdaCDM
• Estimating distances from parallaxes. V: Geometric and photogeometric distances to 1.47 billion stars in Gaia Early Data Release 3
• A 3% Solution: Determination of the Hubble Constant with the Hubble Space Telescope and Wide Field Camera 3
• A Quantitative Comparison of SMC, LMC, and Milky Way UV to NIR Extinction Curves
• Gaia Early Data Release 3: The astrometric solution
• Gaia Early Data Release 3: Parallax bias versus magnitude, colour, and position
• The Wavelength Dependence of Interstellar Extinction from 1.25 to 8.0 microns Using GLIMPSE Data
• Cosmic Distances Calibrated to 1% Precision with Gaia EDR3 Parallaxes and Hubble Space Telescope Photometry of 75 Milky Way Cepheids Confirm Tension with LambdaCDM
• A distance to the Large Magellanic Cloud that is precise to one per cent
• Reddening and Extinction Toward the Galactic Bulge from OGLE-III: The Inner Milky Way's Rv ~ 2.5 Extinction Curve
• New Parallaxes of Galactic Cepheids from Spatially Scanning the Hubble Space Telescope: Implications for the Hubble Constant
• A million binaries from Gaia eDR3: sample selection and validation of Gaia parallax uncertainties
• Gaia Early Data Release 3 -- Catalogue validation
• Hubble Space Telescope Fine Guidance Sensor Parallaxes of Galactic Cepheid Variable Stars: Period-Luminosity Relations
• Astrometry with Hubble Space Telescope: A Parallax of the Fundamental Distance Calibrator delta Cephei
• The HST Key Project on the Extragalactic Distance Scale XIII. The Metallicity Dependence of the Cepheid Distance Scale
• A new Cepheid distance to the maser-host galaxy NGC 4258 and its implications for the Hubble Constant
• Parallax Systematics and Photocenter Motions of Benchmark Eclipsing Binaries in Gaia EDR3
• The influence of chemical composition on the properties of Cepheid stars. II-The iron content
• A new calibration of Galactic Cepheid Period-Luminosity relations from B to K bands, and a comparison to LMC PL relations
• The Effect of Metallicity on Cepheid-Based Distances
• A distance determination to the Small Magellanic Cloud with an accuracy of better than 2 percent based on late-type eclipsing binary stars
• Cepheid Parallaxes and the Hubble Constant
• New Period-Luminosity and Period-Color Relations of Classical Cepheids: II. Cepheids in LMC
• The Carnegie Hubble Program: The Distance and Structure of the SMC as Revealed by Mid-infrared Observations of Cepheids
• The effect of metallicity on the Cepheid Period-Luminosity relation from a Baade-Wesselink analysis of Cepheids in the Galaxy and in the Small Magellanic Cloud
• Evidence for a systematic offset of $-$0.25 mas in the Gaia DR1 parallaxes
• Hipparcos Parallaxes and the Cepheid Distance Scale
• The Carnegie Hubble Program: The Leavitt Law at 3.6 and 4.5 micron in the Milky Way
• The Cepheid period -- luminosity -- metallicity relation based on Gaia DR2 data
• Parallax Beyond a Kiloparsec from Spatially Scanning the Wide Field Camera 3 on the Hubble Space Telescope
• Validation of the accuracy and precision of Gaia EDR3 parallaxes with globular clusters
• The Carnegie Hubble Program: The Leavitt Law at 3.6 μm and 4.5 μm in the Large Magellanic Cloud
• Period-Luminosity Relations Derived from the OGLE-III Fundamental Mode Cepheids
• The effect of metallicity on Cepheid Period-Luminosity relations from a Baade-Wesselink analysis of Cepheids in the Milky Way and Magellanic Clouds
• Galactic Cepheids with Spitzer: I. Leavitt Law and Colors
• The Parallax Zero-Point of Gaia Early Data Release 3 from LAMOST Primary Red Clump Stars
• The influence of metallicity on the Leavitt Law from geometrical distances of Milky Way and Magellanic Clouds Cepheids
• A Bayesian Analysis of the Cepheid Distance Scale
• Cepheid Metallicity in the Leavitt Law (C-MetaLL) survey: I. HARPS-N@TNG spectroscopy of 47 Classical Cepheid and 1 BL Her variables
• The Carnegie Chicago Hubble Program: The Mid-Infrared Colours of Cepheids and the Effect of Metallicity on the CO Band-head at $4.6\mu$m
• Reddening map and recent star formation in the Magellanic Clouds based on OGLE IV Cepheids
• Distance Dependent Offsets between Parallaxes for Nearby Stars and Gaia DR1 Parallaxes
• A precision determination of the Effect of Metallicity on Cepheid absolute magnitudes in VIJHK bands from Magellanic Cloud Cepheids
• On a new and homogeneous metallicity scale for Galactic classical Cepheids - I. Physical parameters
• The surface brightness - colour relations based on eclipsing binary stars and calibrated with Gaia EDR3

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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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