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arXiv · astro-ph/0501658

Binary Black Holes at the Core of Galaxy Clusters

Fabio Pizzolato Noam Soker
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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.

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Fabio Pizzolato Noam Soker. 2005-01-30. Binary Black Holes at the Core of Galaxy Clusters. https://doi.org/10.1016/j.asr.2005.02.020

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