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SUMMARY:Searches for fundamental physics with X-ray telescopes - Francesca
  Day (DAMTP)
DTSTART:20171009T120000Z
DTEND:20171009T130000Z
UID:TALK77361@talks.cam.ac.uk
CONTACT:Tobias Baldauf
DESCRIPTION:X-ray telescopes are an exceptional tool for discovering or co
 nstraining new fundamental physics. I will discuss two searches for new ph
 ysics using X-ray observations of galaxy clusters. Firstly\, we search for
  axions by observing the spectra of point sources shining through the larg
 e scale magnetic fields of galaxy clusters. Secondly\, I will review the s
 tatus of the anomalous 3.5 keV line observed in 2014 by Bulbul et al and B
 oyarsky et al. I will discuss our recent discovery of an absorption featur
 e at 3.5 keV in the AGN at the centre of the Perseus galaxy cluster\, and 
 how these anomalies may be linked. Finally\, I will describe how the next 
 generation of X-ray telescopes\, featuring far superior energy resolution 
 and polarimetry capabilities\, will improve the search for fundamental phy
 sics.
LOCATION:CMS\, Pav. B\, CTC Common Room (B1.19) [Potter Room]
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