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Inexplicable cloud of magnetized plasma found in Hydra galaxy cluster
High sensitivity radio observations have discovered a cloud of magnetized plasma in the Hydra galaxy cluster. The odd location and shape of this plasma defy all conventional explanations. Dubbed the Flying Fox based on its silhouette, this plasma will remain a mystery until additional observations can provide more insight.
A team led by Kohei Kurahara at the National Astronomical Observatory of Japan analyzed observations from the Giant Metrewave Radio Telescope (GMRT) targeting the Hydra galaxy cluster, located more than 100 million light years away in the direction of the constellation Hydra.
By applying recent analysis techniques to the GMRT (Giant Metrewave Radio Telescope) data archive, the team was able to discover a cloud of magnetized plasma shaped like a flying fox, which has never been reported before. The team published their find in Publications of the Astronomical Society of Japan.
Radio/optical/IR/X-ray images failed to find a host galaxy at the center of the Flying Fox. This combined with its elongated shape, has left astronomers scratching their heads; the Flying Fox does not fit the model for any known class of objects.
New observing facilities, like the Square Kilometer Array currently under construction, are expected to study the Flying Fox and provide new insights into the nature and history of this unusual object.
More information: Kohei Kurahara et al, Discovery of diffuse radio source in Abell 1060, Publications of the Astronomical Society of Japan (2024). DOI: 10.1093/pasj/psae011
Provided by National Astronomical Observatory of Japan
