Redshifts of blue galaxies toward the Virgo cluster

Astronomy and Astrophysics – Astronomy

Scientific paper

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Emission Spectra, Radial Velocity, Red Shift, Virgo Galactic Cluster, Dwarf Galaxies, Magnitude

Scientific paper

The equatorial coordinates (epoch 1950.0), apparent B magnitudes, calculated radial velocities (Vo) relative to the galactic center, standard errors of Vo and spectral lines used are presented in a table for 35 blue galaxies of magnitude 16-20 taken from lists of objects in the central field of the Virgo cluster (Boerngen, 1980 and 1983). Several galaxies of special interest are briefly characterized. It is found that only one object, Boe117, is actually a dwarf member of the Virgo cluster: Boe149, 185, and 201 belong to the extended supercorona of the Coma cluster, while the rest are distant background objects with a nonuniform distribution (relative to Vo) suggesting a periodicity of scale 90 Mpc.

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