机译:Deep optical imaging of a compact group of galaxies, Seyfert's Sextet
Tohoku Univ, Grad Sch Sci, Astron Inst, Aoba Ku, Sendai, Miyagi 9808578, Japan.;
Dark matter; Galaxies : individual (seyfert's sextet = hcg 79); X-rays; X-ray-emission; Rosat observations; Elliptical galaxies; Sample; Atlas;