Optical and X-ray image composite of the 47 Tucanae globular cluster. The left panel shows an optical image of the cluster, while the inset on the right shows a Chandra X-ray Observatory image of its core. The X-ray image reveals numerous colorful point sources representing compact binary star systems, including white dwarfs, neutron stars, and possibly black holes. The absence of a central massive black hole is also noteworthy.

Astronomy Picture from 24/05/2001

X-Ray Stars of 47 Tucanae

Source: https://apod.nasa.gov/apod/ap010524.html


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