The left partial image shows OJ 287 in the center on an image taken by the space-based Swift telescope in ultraviolet light. The source of the ultraviolet light is the core region of the active galaxy OJ 287, but its substructure cannot be resolved further with this telescope. The right subimage shows an artist’s rendering of this core, including the matter disk, the jet, and the postulated pair of second black holes. Here, the lower-mass and smaller black hole orbits the primary black hole. © S. Komossa et al.;
Large-scale observing campaign provides new insights into black-hole pair at the center of active galaxy OJ 287. The left partial image shows OJ 287 in the center on an image taken by the space-based Swift telescope in ultraviolet light. The source of the ultraviolet light is the core region of the active galaxy OJ 287, but its substructure cannot be resolved further with this telescope. The right subimage shows an artist's rendering of this core, including the matter disk, the jet, and the postulated pair of second black holes. Here, the lower-mass and smaller black hole orbits the primary black hole. S. Komossa et al. NASA/JPL-Caltech - A long-term study using data from four telescopes ranging from the radio to the high energy frequency range penetrates to the core of the much-discussed active galaxy OJ 287, revealing more details about what is happening inside it.
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