A giant intergalactic H I bubble near Arp143 Appleton, P. N. ; Ghigo, F. D. ; van Gorkom, J. H. ; Schombert, J. M. ; Struck-Marcell, Curtis Abstract Publication: Nature Pub Date: December 1987 DOI: 10.1038/330500a0 Bibcode: 1987Natur.330..500A