Compact Objects and Accretion in the Era of X-ray Calorimeters

Thursday, April 30, 2020 - 4:00pm
Phillips Auditorium
University of Michigan

High resolution observations of the iron k-shell band in X-rays (roughly 6-10 keV) is the final frontier of atomic spectroscopy. The power of X-ray calorimeter spectroscopy to transform our view of the hottest, most energetic, and most extreme environments was dramatically illustrated by Hitomi observations of the Perseus cluster. Arguably even more dramatic advances will be achieved in studies of accretion onto - and ejection from - compact objects, because this field has benefitted from 20 years of Chandra gratings spectroscopy. The mass of compact objects, the size of the central engine, the structure of advective flows, the key physical parameters of thin disks, and the true mass loss rate and kinetic power in winds will be within reach with XRISM (launch: 2022), and fully revealed with Athena (launch: 2032) and Lynx.

Special Note: 
Event Status: