Alexander Kolodzig (Kavli Institute, Beijing)

Can AGN, galaxy clusters, and WHIM explain the surface brightness fluctuations of the cosmic X-ray background?
Wann Am 21.12.2016 von 15:30 bis 16:30
  • Special Seminar
  • Kolloquium
Wo SH, Seminarraum
Termin übernehmen vCal / iCal

Studies of the surface brightness fluctuations of the cosmic X-ray background (CXB) are becoming a new frontier of large-scale structure (LSS) studies in X-rays. Those fluctuations carry unique information about faint and low luminosity source populations, which are inaccessible for conventional LSS studies based on resolved sources. I will demonstrate this by presenting the first full description of CXB fluctuations on the angular scales up to ~3deg. It is the result of our extensive study of the CXB fluctuations with XBOOTES, which is currently the largest continuous extragalactic survey by Chandra covering an area of ~9deg^2. It enabled us to conduct the most accurate measurement of power spectrum of CXB fluctuations to date.