Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. Chandra's x-ray vision detects the presence of an unexpectedly large number of these exotic star systems within 47 Tucanae , but it also indicates the apparent absence of a large central black hole. The finding suggests that compact binary star systems of 47 Tucanae may be ejected from the cluster before coalescing to form a large black hole at its core .
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