A Definitive Optical Detection of a Supercluster at z ≈ 0.91

@article{Lubin2000ADO,
  title={A Definitive Optical Detection of a Supercluster at z ≈ 0.91},
  author={Lori M. Lubin and Robert J. Brunner and Mark Robert Metzger and Marc Postman and John Beverly Oke},
  journal={The Astrophysical Journal},
  year={2000},
  volume={531}
}
We present the results from a multiband optical imaging program that has definitively confirmed the existence of a supercluster at z ≈ 0.91. Two massive clusters of galaxies, Cl 1604+4304 at z = 0.897 and Cl 1604+4321 at z = 0.924, were originally observed in the high-redshift cluster survey of Oke, Postman, & Lubin. They are separated by 4300 km s-1 in radial velocity and 17' on the plane of the sky. Their physical and redshift proximity suggested a promising supercluster candidate. Deep BRi… 

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