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

Details 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 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

Dec 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...287....1d&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 287, Dec. 1, 1984, p. 1-16.

Astronomy and Astrophysics

Astronomy

70

Astrometry, Local Group (Astronomy), Milky Way Galaxy, Radial Velocity, Red Shift, Stellar Motions, Sun, Astronomical Catalogs, Background Radiation, Distance, Hubble Constant, Reference Systems

Scientific paper

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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