The Department of Astronomy 2024-2025 Colloquium Series Presents:
Irina Zhuravleva, Clare Boothe Luce Assistant Professor, The University of Chicago
"Unveiling Complex Kinematics of Hot Gas in Galaxy Clusters with XRISM"
The recent launch of the XRISM observatory has opened a new era of high-energy astrophysics. Resolve, the primary instrument on XRISM, provides high-resolution (~5 eV) X-ray spectra of various X-ray sources, including extended sources like galaxy clusters. This capability enables direct kinematic mapping of hot gas in many galaxy clusters for the first time. In this talk, I will highlight some of the results from observations of galaxy clusters taken during the first year of the mission. In particular, I will discuss a “double-cascade” of velocities found in the core of the Perseus cluster, stormy weather of the Coma cluster and unusual properties of the velocity power spectrum, gas kinematic properties in a relaxed cluster A2029 out to cosmologically interesting radii, among other exciting results.
The recent launch of the XRISM observatory has opened a new era of high-energy astrophysics. Resolve, the primary instrument on XRISM, provides high-resolution (~5 eV) X-ray spectra of various X-ray sources, including extended sources like galaxy clusters. This capability enables direct kinematic mapping of hot gas in many galaxy clusters for the first time. In this talk, I will highlight some of the results from observations of galaxy clusters taken during the first year of the mission. In particular, I will discuss a “double-cascade” of velocities found in the core of the Perseus cluster, stormy weather of the Coma cluster and unusual properties of the velocity power spectrum, gas kinematic properties in a relaxed cluster A2029 out to cosmologically interesting radii, among other exciting results.
Building: | West Hall |
---|---|
Website: | |
Event Type: | Lecture / Discussion |
Tags: | astronomy, astrophysics |
Source: | Happening @ Michigan from Department of Astronomy, Department of Physics |