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The 3.5 keV X-ray line saga

Date and time: October 14th 2014 @ 15:00
Title: The 3.5 keV X-ray line saga
Presenter: Stefano Profumo (UC Santa Cruz)
Abstract: An X-ray line at an energy of 3.5 keV has been reported from several observations of galaxies and clusters of galaxies. The origin of the line might be related to the decay of dark matter, or to more complicated processes, possibly related to new physics, or more mundanely to atomic transitions. I will review the status of observations and of theoretical models, and outline future possible steps.
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