Coherent peculiar velocities and periodic redshifts

Journal Article · Tue Jan 01 00:00:00 EST 1991 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/185908· OSTI ID:6155020

Hill, C T; Steinhardt, P J; Turner, M S ^[1]

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1. Fermi National Accelerator Laboratory, Batavia, IL (USA) Pennsylvania Univ., Philadelphia (USA) NASA/Fermilab Astrophysics Center, Batavia (USA) Chicago Univ., IL (USA)

A coherent, sinusoidal peculiar velocity field of 0.003 amplitude and wavelength of 128/h Mpc could explain the apparent redshift periodicity seen in the recent pencil-beam survey of Broadhurst et al. (1990). Such a peculiar velocity field could arise if the power spectrum of density perturbations has a strong feature at about this wavelength. This explanation has additional predictions: the phase, period, and strength of the periodicity should vary in different directions; the strength of the periodicity should decrease at higher redshifts; and there should be more thin structures perpendicular to the line of sight than parallel to it. 28 refs.

• OSTI ID: 6155020
• Journal Information: Astrophysical Journal; (USA), Vol. 366; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
RED SHIFT
VARIATIONS
AMPLITUDES
COHERENT RADIATION
DENSITY
MASS DISTRIBUTION
PERTURBATION THEORY
RELICT RADIATION
STARS
VELOCITY
DISTRIBUTION
ELECTROMAGNETIC RADIATION
MICROWAVE RADIATION
PHYSICAL PROPERTIES
RADIATIONS
SPATIAL DISTRIBUTION
640106* - Astrophysics & Cosmology- Cosmology