AAS 201st Meeting, January, 2003
Session 101. Cosmology and Gravitation
Oral, Wednesday, January 8, 2003, 10:00-11:30am, 612

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[101.03] Mass/Light Variations with Environment

R.B. Tully (University of Hawaii)

There is legitimate concern that the distribution of visible objects might be a poor reflection of the distribution of matter in the Universe. Evidence will be presented for factor 10 variations in the ratio of blue light to mass as a function of environment on group scales. Mass concentrations on scales of 1012 - 1013 have moderate values of M/L while values are substantially larger in mass concentrations that are either larger or smaller.

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Bulletin of the American Astronomical Society, 34, #4
© 2002. The American Astronomical Soceity.