The Berkeley-Illinois-Maryland-Association (BIMA) Array and
Owens Valley Radio Observatory (OVRO) have been used with
cm-wave receivers to conduct a survey of known clusters of
galaxies through observations of the Sunyaev-Zel-dovich (SZ)
effect. With observatoins of over 40 clusters of galaxies, a
value for the Hubble constant has been derived that is
consistent with other observations. Analysis has also
constrained the value of the baryon density in the universe.
The BIMA instrument is based out of the Radio
Astronomy Laboratory at U.C. Berkeley, the Laboratory
for Astronomical Imaging at U. Illinois at Urbana, and Laboratory for
Millimeter-Wave Astronomy at U. Maryland.
The OVRO instrument is based run by the Astronomy Dept. of
California Institute of Technology.