Binary Black Holes at the Core of Galaxy Clusters
arXiv:astro-ph/0501658 · doi:10.1016/j.asr.2005.02.020
Abstract
In 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.
Accepted for publication in "Advances in Space Research" (Proceedings of the 35th COSPAR Assembly 2004; Session "New Insights from XMM-Newton, Chandra and INTEGRAL")
References in corpus (2)
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