Spectroscopic measures of galaxies, their companions, and peculiar galaxies in the southern hemisphere

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Astronomical Spectroscopy, Galactic Clusters, Peculiar Galaxies, Red Shift, Southern Sky, Absorption Spectra, Line Spectra, Position (Location), Spectrographs, Spectrum Analysis, Tables (Data)

Scientific paper

Examples of apparent association of galaxies and also of single peculiar galaxies have been drawn from the Catalogue of Southern Peculiar Galaxies and Associations (Arp and Madore, in preparation). Spectroscopic measures are reported for 75 central or peculiar galaxies and for 97 companion galaxies. Objects are identified by position and illustrated by photographic prints from the UK Schmidt (SRC) survey. Absorption and emission characteristics are tabulated for each spectrum, and heliocentric redshifts are given. The redshifts are calculated to be on the Reference Catalog II system (de Vaucouleurs et al. 1976) to within plus or minus 50 km/s. The average redshift is repeatable to within plus or minus 50 km/s. Differential redshifts of objects observed simultaneously or sequentially can be considerably more accurate.

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