peculiar velocity

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Noun1.peculiar velocity - velocity with respect to the local standard of rest
speed, velocity - distance travelled per unit time
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References in periodicals archive ?
They used galaxies' peculiar velocities, which are the galaxies' motions due to the local gravitational landscape.
The CLUES simulations use the observed positions and peculiar velocities of galaxies within 10,000,000 light-years of the Milky Way to accurately simulate the local environment of the Milky Way.
When discarding supernovae with z < 0.0233 (due to larger uncertainties in the peculiar velocities) they found an offset of 0.037 [+ or -] 0.021 magnitude between the data sets, which they then corrected for by subtracting this constant from the HST data set.