Dark matter self-interactions and small scale structure

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Small-scale structure of cold dark matter

We investigate the clumping of cold dark matter (CDM) at small scales. If the CDM particle is the neutralino, we find that collisional damping during its kinetic decoupling from the radiation fluid and free streaming introduce a small-scale cut-off in the primordial power spectrum of CDM. This cut-off sets the scale for the very first CDM objects in the Universe, which we expect to have a mass ...

متن کامل

Particle Models and the Small-Scale Structure of Dark Matter

Abstract. The kinetic decoupling of weakly interacting massive particles (WIMPs) in the early universe sets a scale that can directly be translated into a small-scale cutoff in the spectrum of matter density fluctuations. The formalism presented here allows a precise description of the decoupling process and thus the determination of this scale to a high accuracy from the details of the underly...

متن کامل

Dark Matter and Large Scale Structure

A review of the study of dark matter and large scale structure of the Universe at Tartu Observatory is given. Tartu astronomers have participated in this development, starting from Ernst Öpik and Grigori Kuzmin, and continuing with the present generation of astronomers. Our goal was to understand better the structure, origin and evolution of the Universe.

متن کامل

Large-Scale Structure and Dark Matter Problem

I review the observational data most relevant for large scale structure. These data determine the system of cosmological parameters: the Hubble parameter, densities of various populations of the Universe, parameters characterizing the power spectrum of matter, including the biasing parameter of galaxies relative to matter. Recent data suggest that the overall matter/energy density is approximat...

متن کامل

Dark Matter and Large-scale Structure

The three parts of this paper cover the following topics: (1) status of the cosmological parameters H0, t0, , and especially ; (2) how to compare cosmological theories of structure formation and cosmological simulations to observational data; and (3) structure formation in Cold Dark Matter (CDM) and related cosmological models, especially Cold + Hot Dark Matter (CHDM). I will also brie y discus...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Physics Reports

سال: 2018

ISSN: 0370-1573

DOI: 10.1016/j.physrep.2017.11.004