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Title:
The dependence on distance and redshift of the velocity vectors of the sun, the Galaxy, and the Local Group with respect to different extragalactic frames of reference [ Erratum: 1985ApJ...293..616D ]
Authors:
de Vaucouleurs, G.; Peters, W. L.
Affiliation:
AA(Texas, University; McDonald Observatory, Austin, TX), AB(Texas, University; McDonald Observatory, Austin, TX)
Publication:
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 287, Dec. 1, 1984, p. 1-16. (ApJ Homepage)
Publication Date:
12/1984
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
ASTROMETRY, LOCAL GROUP (ASTRONOMY), MILKY WAY GALAXY, RADIAL VELOCITY, RED SHIFT, STELLAR MOTIONS, SUN, ASTRONOMICAL CATALOGS, BACKGROUND RADIATION, DISTANCE, HUBBLE CONSTANT, REFERENCE SYSTEMS
DOI:
10.1086/162658
Bibliographic Code:
1984ApJ...287....1D

Abstract

A new analysis of the solar motion and Hubble ratio derived from a sample of 600 "best observed" galaxies of all types having distance moduli estimated by one to four independent methods confirms a phenomenon first reported in 1968: the solar apex S moves steadily from Sarcmin (Varcmin = 336 km s-1 toward supergalactic coordinates Larcmin = 338°, Barcmin = +27°) to S*(V* = 366 km s-1 toward L* = 112°, B* = -17°) when the mean redshift of the reference frame increases from small values (Local Group, z = 0) to large values (background radiation). The mean values of the Hubble ratio derived from galaxies in six different distance intervals ranging from ≡6 to ≡36 Mpc are shown to be constant and independent of distance. The overall mean value >H*< = 101±2 (internal m.e.) or ±10, including zero point errors, should be a close approximation of the Hubble constant.

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