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Hydra A:
Chandra Ploughs Up a Snake In Hydra A
Credit: NASA/CXC/SAO
Chandra Ploughs Up a Snake In Hydra A
Credit: NASA/CXC/SAO
Hydra A is a galaxy cluster that is 840 million light years from Earth (redshift = .054). The cluster gets its name from the strong radio source, Hydra A, that originates in a galaxy near the center of the cluster. Optical observations show a few hundred galaxies in the cluster. Chandra X-ray observations reveal a large cloud of hot gas that extends throughout the cluster. The gas cloud is several million light years across and has a temperature of about 40 million degrees in the outer parts decreasing to about 35 million degrees in the inner region.
| Multi-wavelength Images: (*Images not to scale) | ||
|---|---|---|
X-ray
 NASA/CXC/SAO Jpg (160 k) Tiff (3.8 mb) PS (3.4 mb) |
Optical
 La Palma/B. McNamara Jpg (28 k) |
Radio
 Greg Taylor, NRAO Jpg (31 k) |
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Revised: December 08, 2020