24 citations · 127 across the 22 of their papers we have counts for
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astro-ph2001
Origins of Quasars and Galaxy Clusters
Halton Arp
The distribution on the sky of clusters of galaxies shows significant association with relatively nearby, large, active galaxies. The pattern is that of clusters paired equidistant…
astro-ph2001★ 24 cited
X-ray Emitting QSOs Ejected from Arp 220
H. C. Arp, E. M. Burbidge, Y. Chu
Four compact ROSAT X-ray sources very close to the nearby ultraluminous infrared galaxy Arp 220 (IC 4553) have been identified as medium-redshift QSOs. The closest pair lying symme…