Soft X-Ray and Extreme Ultraviolet Excess Emission from Clusters of Galaxies [chapter]

F. Durret, J. S. Kaastra, J. Nevalainen, T. Ohashi, N. Werner
Clusters of Galaxies  
An excess over the extrapolation to the extreme ultraviolet and soft X-ray ranges of the thermal emission from the hot intracluster medium has been detected in a number of clusters of galaxies. We briefly present each of the satellites (EUVE, ROSAT PSPC and BeppoSAX, and presently XMM-Newton, Chandra and Suzaku) and their corresponding instrumental issues, which are responsible for the fact that this soft excess remains controversial in a number of cases. We then review the evidence for this
more » ... vidence for this soft X-ray excess and discuss the possible mechanisms (thermal and non-thermal) which could be responsible for this emission.
doi:10.1007/978-0-387-78875-3_4 fatcat:lkc6hab265fsvmrewty4stmfzm