5k citations · 37.1k across the 535 of their papers we have counts for
13 papers · 1 filter
The entropy history of the universe
P. Valageas, J. Silk
Using a unified analytic model for quasars, galaxies, Lyman-alpha absorbers and the IGM, we obtain the redshift evolution of the temperature and the entropy of the gas and the corr…
Dark matter annihilation at the galactic center
Paolo Gondolo, Joseph Silk
If cold dark matter is present at the galactic center, as in current models of the dark halo, it is accreted by the central black hole into a dense spike. Particle dark matter then…
Constraining Primordial Non-Gaussianity With the Abundance of High Redshift Clusters
James Robinson, Eric Gawiser, Joseph Silk
We show how observations of the evolution of the galaxy cluster number abundance can be used to constrain primordial non-Gaussianity in the universe. We carry out a maximum likelih…
Lensing-Induced Structure of Submillimeter Sources: Implications for the Microwave Background
Evan Scannapieco, Joseph Silk, Jonathan C. Tan
We consider the effect of lensing by galaxy clusters on the angular distribution of submillimeter wavelength objects. While lensing does not change the total flux and number counts…
On the structure and nature of dark matter halos
Andreas Burkert, Joseph Silk
The structure of dark matter halos as predicted from cosmological models is discussed and compared with observed rotation curves of dark matter-dominated dwarf galaxies. The theore…
A Semi-Empirical Model of the Infra-Red Universe
Jonathan C. Tan, Joe Silk, Christophe Balland
We present a simple model of the infra-red universe, based as much as possible on local observations. We model the luminosity and number evolution of disk and starburst galaxies, i…
The reheating and reionization history of the universe
P. Valageas, J. Silk
We incorporate quasars into an analytic model to describe the reheating and reionization of the universe. In combination with a previous study of galaxies and Lyman- clouds, we…
Seven Paradigms in Structure Formation
Joseph Silk
Have we converged on the definitive model of cosmology? I present a critical assessment of the current paradigms for the evolution of large-scale structure.
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…
WOMBAT & FORECAST: Making Realistic Maps of the Microwave Sky
Andrew H. Jaffe, Eric Gawiser, Douglas Finkbeiner +11
The Wavelength-Oriented Microwave Background Analysis Team (WOMBAT) is constructing microwave maps which will be more realistic than previous simulations. Our foreground models rep…
The Sunyaev-Zel'dovich Effect by Cocoons of Radio Galaxies
Masako Yamada, Naoshi Sugiyama, Joseph Silk
We estimate the deformation of the cosmic microwave background radiation by the hot region (``cocoon'') around a radio galaxy. A simple model is adopted for cocoon evolution while…
Event Rate and Einstein Time Evaluation in Pixel Microlensing
Edward A. Baltz, Joseph Silk
It has been shown that a flux--weighted full width at half maximum timescale of a microlensing event can be used in an unbiased estimator of the optical depth. For the first time,…
A Fundamental Test of the Nature of Dark Matter
R. Benton Metcalf, Joseph Silk
Dark matter may consist of weakly interacting elementary particles or of macroscopic compact objects. We show that the statistics of the gravitational lensing of high redshift supe…