18
X-ray Masses for Clusters
•
So, from the spectrum we can get the
temperature as a function of radius, and from
the intensity we can get the emissivity and
hence the density.
•
Chandra is great for this type of observation:
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http://chandra.harvard.edu/photo/2002/0146/
•
http://chandra.harvard.edu/photo/0087/
•
http://www1.msfc.nasa.gov/NEWSROOM/new
s/photos/2002/photos02-037.html
•
Cooling flows
are one
possible
complication.
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