Figure 2 (IMAGE)
Caption
X-ray image of the H1821+643 galaxy group obtained with the Chandra X-ray Observatory. The green dashed square indicates the observed region, corresponding to a physical scale of approximately 900,000 light-years on each side. The lower panel shows the energy distribution of X-ray emission lines from iron ions (e.g., at 6.7 keV) in the central region (within a radius of about 300,000 light-years), with observational data (white) overlaid with the best-fit model (red). Compared with a typical galaxy cluster such as the Perseus cluster, the line broadening is significantly more pronounced, indicating highly turbulent and dynamically active hot gas over a wide spatial extent.
Credit
Yamada et al.
Usage Restrictions
Credit must be given to the creator.
License
CC BY