2022
DOI: 10.48550/arxiv.2201.12315
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Galaxy flows within 8,000 km/s from Numerical Action methods

Edward Shaya,
R. Brent Tully,
Daniel Pomarède
et al.

Abstract: The trajectories since z = 4 of systems of galaxies ('halos') with cz < 8, 000 km s −1 are found through Numerical Action reconstructions. A set of 9,719 halos from a 2MASS group catalog and Cosmicflows-3 catalogs are given attention. Present distances are adjusted to minimize departures from observed redshifts. For those with the most precisely determined distances, compromises are made between distance and redshift agreement. H 0 is varied from 69 to 77 km s −1 Mpc −1 with Ω m set by the baryon acoustic osci… Show more

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