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Peculiar Velocities and Galaxy Formation
1986The cosmic microwave background (CMB) dipole anisotropy (DA) (Lubin and Villela, this volume) implies a Local Group (LG) velocity v D = 640 ± 50Km s -1 relative to the comoving reference frame, in a direction which is 45° away from the Virgo cluster. The CMBDA seems to be consistent both in amplitude and in direction with the DA of the Hubble flow (780
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Peculiar Velocities of Nearby Spiral Galaxies
1989We report measurements of peculiar velocities from a sample of over 300 intermediate-type spiral galaxies. The galaxies have been observed at λ21cm at Jodrell Bank and Parkes (Staveley-Smith & Davies 1987,1988; Davies, Staveley-Smith & Murray 1988) and include, as a subset, an updated version of the Sbc data utilized by Hart & Davies (1982).
L. Staveley-Smith, R. D. Davies
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Large scale peculiar velocities of galaxies
Chinese Astronomy and Astrophysics, 1991Abstract We have calculated in detail the distribution of large scale peculiar velocities on assuming gaussian primordial mass perturbation and spherical symmetry, instead of the linear perturbaton approximation and window function used in usual fluid models. Calculation was made for several model universes dominated by various kinds of matter.
null Xiang Shou-Ping +2 more
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Peculiar velocities from cosmic strings
Physical Review D, 1987, Brandenberger +3 more
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Peculiar Velocity Effects on the CMB
2016The aberration effect due to our peculiar velocity \(\boldsymbol{\beta }\) with respect to the CMB induces mixing among multipoles and off-diagonal correlations at all scales which can be used as a measurement of \(\boldsymbol{\beta }\), which is independent of the standard measurement using the CMB temperature dipole. Here we review the two techniques
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Surveys of Peculiar Velocities of Galaxies
1999Substantial progress has recently been made in the understanding of the mass distribution in the local Universe through analysis of the all-sky velocity field. The current status of such peculiar velocity surveys is reviewed in this paper. Recent discrepant conclusions for the density of the Universe are discussed.
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THE COSMOLOGICAL Ω FROM PECULIAR VELOCITIES
Annals of the New York Academy of Sciences, 1993openaire +2 more sources