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The Density of the Universe from the Peculiar Velocities of Sc Galaxies
Author(s) -
Freudling Wolfram,
Costa Luiz N.,
Giovanelli Riccardo,
Haynes Martha P.,
Salzer John J.,
Wegner Gary
Publication year - 1995
Publication title -
annals of the new york academy of sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.712
H-Index - 248
eISSN - 1749-6632
pISSN - 0077-8923
DOI - 10.1111/j.1749-6632.1995.tb17628.x
Subject(s) - galaxy , physics , universe , redshift , astrophysics , sky , peculiar velocity , metric expansion of space , field (mathematics) , astronomy , cosmology , dark energy , mathematics , pure mathematics
The all‐sky survey of Sc galaxies with estimated redshift–independent distances presented by Haynes et al. (1993) is used to map the peculiar velocity field in the local universe. After suitable correction for Malmquist and selection biases, the resulting peculiar velocities are used to estimate the mass density in the local universe using the POTENT method (Dekel 1994). The resulting density field is compared with the distribution of galaxies.