Large-Scale Structure in the ROSAT North Ecliptic Pole Survey
Abstract
We have used the ROSAT All-Sky Survey around the North Ecliptic Pole to construct a complete sample of galaxy clusters. The deep and contiguous nature of the survey affords us the opportunity to examine large-scale structure in the Universe on scales of hundreds of megaparsecs. We have identified over 99% of the 446 X-ray sources in the survey area. The cluster sample consists of 65 objects with redshifts approaching unity. Surprisingly, some 20% of the clusters exists in a wall-like structure at z=0.088 spanning the entire 9 deg x 9 deg survey region. This is a very significant extension of both the membership and the spatial extent to a known supercluster in this location.
- Publication:
-
Large Scale Structure in the X-ray Universe
- Pub Date:
- March 2000
- DOI:
- 10.48550/arXiv.astro-ph/9912258
- arXiv:
- arXiv:astro-ph/9912258
- Bibcode:
- 2000lssx.proc..149M
- Keywords:
-
- Astrophysics
- E-Print:
- 4 pages, 1 figure, oral contribution to "Large-Scale Structure in the X-ray Universe", Santorini, GREECE (September 1999) Additional figures and animations are available at http://www.ifa.hawaii.edu/~mullis/nep.html