[Astro] Lunch talks next week

[Joseph Butler]

Reminder of the lunch talk at 1pm!

Joe



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Hi all,

The second lunch talk this week will be in our usual 1pm slot on Thursday (20/11/25) in A113, and will be given by Helen Russell.

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Thursday 20/11/25 - Helen Russell

Title: XRISM's first results

Abstract: The X-ray Imaging and Spectroscopy Mission (XRISM) was launched by JAXA and NASA in late 2023.  XRISM carries onboard the next generation of X-ray instrumentation - the X-ray microcalorimeter.  With nearly two orders of magnitude improvement in spectral resolution over current CCD spectroscopy, XRISM is now revealing the dynamics of hot atmospheres in galaxy clusters.  I will review the first results from the performance verification phase and present our Cycle 1 observations of gas motions driven by AGN feedback in the Ophiuchus cluster.

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Thanks,
Joe


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