Clusters in the Zone of Avoidance

Details Clusters in the Zone of Avoidance Clusters in the Zone of Avoidance

2003-04-24

arxiv.org/abs/astro-ph/0304453v1

Astronomy and Astrophysics

Astrophysics

6 Pages, 3 Figures, to appear in Carnegie Observatories Centennial Symposium III: Clusters of Galaxies

Scientific paper

The Clusters in the Zone of Avoidance (CIZA) project is producing the first statistically complete catalogue of X-ray selected galaxy clusters behind the Galactic plane. Current optically selected cluster catalogues have excluded a wide band of sky centered on the Milky Way (|b| < 20 deg) due to the high extinction and stellar obscuration at low Galactic latitudes. An X-ray search for cluster candidates overcomes the problems faced by optically selected catalogues, hence providing the first opportunity to explore the sky in the traditional Zone of Avoidance; principally, the Great Attractor region. When added to other X-ray selected cluster surveys such as the BCS and REFLEX, CIZA will complete the first unbiased, all-sky cluster catalogue. We here report on the progress of the CIZA survey as well as preliminary results of a dipole analysis which utilizes the current CIZA sample.

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