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ASCA Temperature Maps for Merging and Relaxed Clusters and Physics of the Cluster GasASCA temperature maps for several galaxy clusters undergoing strong mergers will be presented. From these maps, it is possible to estimate velocities of the colliding subclusters. I will discuss several interesting implications of these estimates for the physics of the cluster gas and the shape of the gravitational potential. I will also present temperature maps and profiles for several relaxed clusters selected for X-ray mass determination, and present the mass values derived without the assumption of isothermality. The accurate mass-temperature and luminosity-temperature relations will be discussed. This talk will review how AXAF will revolutionize X-ray astronomy through its radically better imaging and spectroscopic resolution. Examples from many fields of astrophysics will be given.
Document ID
19990072354
Acquisition Source
Marshall Space Flight Center
Document Type
Reprint (Version printed in journal)
Authors
Markevitch, M.
(Smithsonian Astrophysical Observatory Cambridge, MA United States)
Sarazin, C.
(Smithsonian Astrophysical Observatory Cambridge, MA United States)
Nevalainen, J.
(Smithsonian Astrophysical Observatory Cambridge, MA United States)
Vikhlinin, A.
(Smithsonian Astrophysical Observatory Cambridge, MA United States)
Forman, W.
(Smithsonian Astrophysical Observatory Cambridge, MA United States)
Date Acquired
August 19, 2013
Publication Date
January 1, 1999
Subject Category
Astrophysics
Meeting Information
Meeting: Heating and Acceleration in the Universe
Location: Tokyo
Country: Japan
Start Date: March 16, 1999
End Date: March 20, 1999
Sponsors: ASCA
Funding Number(s)
CONTRACT_GRANT: NAS8-39073
Distribution Limits
Public
Copyright
Other

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