6 papers · 1 filter
Constraining the strength of Dark Matter Interactions from Structure Formation
Celine Boehm, Pierre Fayet, Richard Schaeffer
We discuss the damping of primordial dark matter fluctuations, taking into account explicitly the interactions of dark matter - whatever their intensity - both with itself and with…
Multiplicity Functions and X-ray emission of Clusters and Groups versus Galaxies and Quasars
P. Valageas, R. Schaeffer
We use a unified analytical formulation for the multiplicity functions of clusters and galaxies which is free from the cloud-in-cloud problem encountered in earlier approaches and…
The redshift evolution of Lyman- absorbers
P. Valageas, R. Schaeffer, J. Silk
We present a model for the Lyman-alpha absorbers that treats all objects (from the low-density forest clouds to the dense damped systems) in a unified description. This approach is…
The Mass and Luminosity Functions of Galaxies and their Evolution
Patrick Valageas, Richard Schaeffer
We set up a model for the evolution of the galaxy luminosity function, taking advantage of recent work that brought in some better understanding of the mass function for gravitatio…
Biasing and high-order statistics from the SSRS2
C. Benoist, A. Cappi, L. N. da Costa +3
We analyze different volume-limited samples extracted from the Southern Sky Redshift Survey (SSRS2), using counts-in-cells to compute the Count Probability Distribution Function (C…
The Multiplicity Function of Galaxies, Clusters and Voids
Patrick Valageas, Richard Schaeffer
We calculate the multiplicity function of matter condensations by directly considering the actual, deeply non-linear density field, which we compare to the popular Press-Schechter…