Large-scale structure probes of modified gravity

نویسندگان
چکیده

برای دانلود رایگان 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

Modified Newtonian Dynamics of Large Scale Structure

We examine the implications of Modified Newtonian Dynamics (MOND) on the large scale structure in a Friedmann-Robertson-Walker universe. We employ a “Jeans swindle” to write a MOND-type relationship between the fluctuations in the density and the gravitational force, g. In linear Newtonian theory, |g| decreases with time and eventually becomes < g0 , the threshold below which MOND is dominant. ...

متن کامل

Constraining f ( R ) Gravity by the Large - Scale Structure

Over the past few decades, general relativity and the concordance ΛCDM model have been successfully tested using several different astrophysical and cosmological probes based on large datasets (precision cosmology). Despite their successes, some shortcomings emerge due to the fact that general relativity should be revised at infrared and ultraviolet limits and to the fact that the fundamental n...

متن کامل

Cosmological probes of modified gravity: the nonlinear regime.

We review the effects of modified gravity on large-scale structure in the nonlinear regime, focusing on f(R) gravity and the Dvali-Gabadadze-Porrati model, for which full N-body simulations have been performed. In particular, we discuss the abundance of massive halos, the nonlinear matter power spectrum and the dynamics within clusters and galaxies, with particular emphasis on the screening mec...

متن کامل

OPTIMIZATION OF LARGE-SCALE TRUSS STRUCTURES USING MODIFIED CHARGED SYSTEM SEARCH

Optimal design of large-scale structures is a rather difficult task and the computational efficiency of the currently available methods needs to be improved. In view of this, the paper presents a modified Charged System Search (CSS) algorithm. The new methodology is based on the combination of CSS and Particle Swarm Optimizer. In addition, in order to improve optimization search, the sequence o...

متن کامل

Improvement of Large-scale PRP production by Haemophilus influenzae typeb, using modified CY medium

Background and Objective: Haemophilus influenzae type b (Hib) is a gram negative bacterium and one of the most common causative agents of acute meningitis in infants and less than 5 years old children worldwide. The production of Hib capsular polysaccharide polyribosyl ribitolphosphate (PRP) is important for the production of conjugate vaccines against Hib infections. The aim of this study is t...

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: International Journal of Modern Physics D

سال: 2018

ISSN: 0218-2718,1793-6594

DOI: 10.1142/s021827181848005x