AbstractIn this paper, we push forward and exploit an analogy between the morphologies of the X-ray cavities observed in some galaxy clusters, and the optically deficient point-symmetric bubbles occurring in some planetary nebulae (PNe). Point-symmetric PNe are thought to be shaped by stellar binary interactions; namely, the presence of a companion to the PN’s progenitor star is required. We suggest that similar point-symmetric structures in the X-ray cavities of galaxy clusters might be associated with the presence of massive binary black holes. A systematic cataloguing of high-resolution images of the diffuse X-ray emission at the core of galaxy clusters might contribute to individuate massive binary black holes.
Binary black holes at the core of galaxy clusters
Advances in Space Research ; 36 , 4 ; 762-766
2005-02-07
5 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Binary black holes at the core of galaxy clusters
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