The article explores the cooling flow problem in galaxy clusters, particularly focusing on the Phoenix cluster. Despite hot gas in these clusters potentially cooling quickly, low star formation rates and absence of soft X-ray lines suggest that much gas remains hot. Utilizing the James Webb Space Telescope, researchers mapped [Ne vi] emissions, unveiling a recent increase in cooling rates, estimated between 5,000 and 23,000 solar masses per year. These findings emphasize the significant impact of black hole feedback in regulating and promoting gas cooling in massive galaxy clusters.
Observations of the Phoenix cluster using JWST reveal extended [Ne vi] emission, indicating a recent episode of rapid cooling in the intracluster medium.
These findings suggest a significant cooling rate spike, estimated between 5,000 and 23,000 solar masses per year, tied to black hole feedback.
#galaxy-clusters #cooling-flow-problem #james-webb-space-telescope #black-hole-jets #intracluster-medium
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