The peculiar velocity field up to $z\sim 0.05$ by forward-modeling Cosmicflows-3 data

Abstract

A hierarchical Bayesian model is applied to the Cosmicflows-3 catalog of galaxy distances in order to derive the peculiar velocity field and distribution of matter within $z\sim 0.054$. The model assumes the $\Lambda$CDM model within the linear regime and includes the fit of the galaxy distances together with the underlying density field. By forward modeling the data, the method is able to mitigate biases inherent to peculiar velocity analyses, such as the Homogeneous Malmquist bias or the log-normal distribution of peculiar velocities. The statistical uncertainty on the recovered velocity field is about 150 km/s depending on the location, and we study systematics coming from the selection function and calibration of distance indicators. The resulting velocity field and related density fields recover the cosmography of the Local Universe which is presented in an unprecedented volume of universe 10 times larger than previously reached. This methodology open the doors to reconstruction of initial conditions for larger and more accurate constrained cosmological simulations. This work is also preparatory to larger peculiar velocity datasets coming from Wallaby, TAIPAN or LSST.

15 pages, 14 figures, 1 table. Accepted by MNRAS

References in corpus (11)

• The Laniakea supercluster of galaxies
• The 6dF Galaxy Survey: Peculiar Velocity Field and Cosmography
• Galaxy Groups: A 2MASS Catalog
• 2MTF VI. Measuring the velocity power spectrum
• The Dipole Repeller
• Deriving accurate peculiar velocities (even at high redshift)
• Cosmic Bulk Flow and the Local Motion from Cosmicflows-2
• An Unbiased Estimator of Peculiar Velocity with Gaussian Distributed Errors for Precision Cosmology
• 2MTF IV. A bulk flow measurement of the local Universe
• Cosmicflows-3: Cold Spot Repeller?
• Accounting for sample selection in Bayesian analyses

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• The Local Distance Network: a community consensus report on the measurement of the Hubble constant at 1% precision
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• From Cosmicflows distance moduli to unbiased distances and peculiar velocities
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• Reconstructing dark matter distribution with peculiar velocities: Bayesian forward modelling with corrections for inhomogeneous Malmquist bias
• WISDOM Project -- XIII. Feeding molecular gas to the supermassive black hole in the starburst AGN-host galaxy Fairall 49
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• Field-Based Physical Inference From Peculiar Velocity Tracers
• Secular Extragalactic Parallax: Measurement Methods and Predictions for Gaia
• Prospects of calibrating afterglow modeling of short GRBs with gravitational wave inclination angle measurements and resolving the Hubble tension with a GW-GRB association event
• The HI Mass Function of the Local Universe: Combining Measurements from HIPASS, ALFALFA and FASHI
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• Photometry and kinematics of dwarf galaxies from the Apertif HI survey
• Identification of Intermediate-mass Black Hole Candidates Among a Sample of Sd Galaxies
• Testing inhomogeneous cosmography in our cosmic neighborhood using CosmicFlows-4
• Hawai'i Supernova Flows: A Peculiar Velocity Survey Using Over a Thousand Supernovae in the Near-Infrared
• SN 2016iyc: A Type IIb supernova arising from a low-mass progenitor
• The Velocity Field Olympics: Assessing velocity field reconstructions with direct distance tracers
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• Bright siren without electromagnetic counterpart by LISA-Taiji-TianQin network
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