Modern cosmological observations allow us to study in great detail the evolution and history of the large scale structure hierarchy. The fundamental problem of accurate constraints on the cosmological parameters, within a given cosmological model, requires precise modelling of the observed structure. In this paper we briefly review the current most effective techniques of large scale structure ...

The recent WMAP data have confirmed that exotic dark matter together with the vacuum energy (cosmological constant) dominate in the flat Universe. Modern particle theories naturally provide viable cold dark matter candidates with masses in the GeV-TeV region. Supersymmetry provides the lightest supersymmetric particle (LSP), theories in extra dimensions supply the lightest Kaluza-Klein particle...

Lotic ecosystems are substantially different than most other ecosystems because the continuous unidirectional flow through the system tends to transport matter to downstream reaches. This gives rise to the common erroneous view of streams as conduits or pipes. The process of retention removes matter from transport and makes it available for utilization by stream biota, thus providing a critical...

We show that discreteness effects related to classical two-body relaxation produce spurious heating of the gaseous component in numerical simulations of galaxy formation. A simple analytic calculation demonstrates that this artificial heating will dominate radiative cooling in any simulation where the mass of an individual dark matter particle exceeds a certain critical value. This maximum mass...

Understanding the nature of the Dark Matter (DM) is one of the current challenges in 1 modern astrophysics and cosmology. Knowing the properties of the DM particle would shed light on 2 physics beyond the Standard Model and even provide us with details of the early Universe. In fact, 3 the detection of such a relic would bring us information from the pre-Big Bang Nucleosynthesis (BBN) 4 period,...

We explore dark matter in the Finely Tuned Minimal Supersymmetric Standard model recently proposed by Arkani-Hamed and Dimopoulos. Relative to the MSSM, there are fewer particles at freezeout, so the calculation of the relic abundance simplifies. Similarly, the predictions for direct detection of the dark matter sharpen. There is a large region of mixed bino–higgsino dark matter where the light...

The self consistency between the impressive DAMA annual modulation signal and the measured recoil energy spectrum is identified as an important test for dark matter candidates. Mirror matter-type dark matter passes this test while other dark matter candidates, including standard WIMPs and mini-electric charged particle dark matter , fail. We argue that the unique properties of mirror matter-typ...

It has been argued that the observed core density profile of galaxies is inconsistent with having a dark matter particle that is collisionless and alternative dark matter candidates which are self interacting may explain observations better. One new class of self interacting dark matter that has been proposed in the context mirror universe models of particle physics is the mirror hydrogen atom ...

The physical basis of the modern cosmological inflationary models with baryosynthesis and nonbaryonic dark matter and energy implies such predictions of particle theory, that, in turn, apply to cosmology for their test. It makes physics of early Universe ambiguous and particle model dependent. The study of modern cosmology is inevitably linked with the probe for the new physics, underlying it. ...

We make connections between studies in the condensed matter literature on quantum phase transitions in square lattice antiferromagnets, and results in the particle theory literature on abelian supersymmetric gauge theories in 2+1 dimensions. In particular, we point out that supersymmetric U(1) gauge theories (with particle content similar, but not identical, to those of theories of doped antife...