Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26as...58..549t&link_type=abstract
Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 58, Dec. 1984, p. 549-557.
Astronomy and Astrophysics
Astronomy
2
Galaxies, Radial Velocity, Radio Astronomy, Astronomical Catalogs, Centimeter Waves, Comparison, Red Shift, Seyfert Galaxies, Visible Spectrum
Scientific paper
The H I-optical content of the Catalogue of Radial Velocities of Galaxies (Palumbo et al., 1983) and its up-dated extension have been investigated in order to study the cross-comparison of these two kinds of measurements over the whole range of measured velocities. The statistical behaviour of the radio-optical residuals have been surveyed for double galaxies, Seyfert galaxies, different morphological types and inclinations. The consistency among various sources of 21 cm data has been investigated and a self-adjusted average H I velocity available on each galaxy has been used to evaluate possible external errors of 25 optical references. The outcoming results have been compared with those obtained considering the H I standard proposed by Rood (1982).
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