Generalized cumulant correlators and hierarchical clustering
نویسندگان
چکیده
منابع مشابه
Determining Bias with Cumulant Correlators
The first non-trivial cumulant correlator of the galaxy density fieldQ21 is examined from the point of view of biasing. It is shown that to leading order it depends on two biasing parameters b, and b2, and on q21, the underlying cumulant correlator of the mass. As the skewness Q3 has analogous properties, the slope of the correlation function −γ, Q3, and Q21 uniquely determine the bias paramete...
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Shape dependence of higher order correlations introduces complication in direct determination of these quantities. For this reason theoretical and observational progress has been restricted in calculating one point distribution functions and related moments. Methods based on factorial moments of two point count probability distribution (cumulant correlators) were recently shown to be efficient ...
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The growth of Super Massive Black Holes and the parallel development of activity in galactic nuclei are implemented in an analytic code of hierarchical clustering. The evolution of the luminosity function of quasars and AGN will be computed with special attention paid to the connection between quasars and Seyfert galaxies. One of the major interests of the model is the parallel study of quasar ...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2000
ISSN: 0035-8711,1365-2966
DOI: 10.1046/j.1365-8711.2000.03042.x