Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996apjs..103...63b&link_type=abstract
Astrophysical Journal Supplement v.103, p.63
Astronomy and Astrophysics
Astronomy
53
Cosmology: Theory, Galaxies: Clusters: General, Methods: Numerical, Catalogs
Scientific paper
In adjoining papers, we developed a picture of large-scale structure formation based upon the collapse and flow of regions of Lagrangian (initial condition) space surrounding peaks in the density field. To illustrate the utility of this "Peak-Patch" method, we construct cluster catalogues covering very large volumes of space for four inflation- inspired Gaussian structure formation theories with a critical density in clustering matter and whose σ_8_ normalizations roughly fit the COBE anisotropy measurements. We use these to make deep field X-ray and Sunyaev-Zeldovich maps. Subject to some uncertainties in the internal peak-patch physics and the X-ray data, we find that current X-ray temperature data suggest σ_8_ is within ~15% of 0.7 and the spectrum is flatter than CDM gives, for Einstein-de Sitter models. We also find the current X-ray luminosity data are difficult to fit over the entire range with such models. The prospect for the observation of the ambient thermal and kinetic SZ effect with a variety of experimental designs is discussed.
Bond Richard J.
Myers Steven T.
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