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Marusa Bradac (KIPAC)Doug Clowe (Ohio U.)
Anthony Gonzalez (U. Florida)
Maxim Markevitch (CfA)Christine Jones (CfA)
Phil Marshall (KIPAC)Scott Randall (CfA)Tim Schrabback (AlFA, Bonn)
William Forman (CfA)
Dennis Zaritsky (U. Arizona)
Bradac et al., 2006, ApJ, 652,937Clowe et al., 2006, ApJL, 648,108
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Zwicky (1933) : Coma Cluster (400x observed mass)Smith (1936) : Virgo Cluster
The Case for Dark Matter
H.D. Babcock (1938; PhD - unpublished) M 31, M/L ~ 50
Kahn & Woltjer (1959): Local Group Timing
argument
de Blok et al. 2001