Dark Matter Gravitational Clustering With a Long-Range Scalar Interaction - AstrophysicsReportar como inadecuado




Dark Matter Gravitational Clustering With a Long-Range Scalar Interaction - Astrophysics - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Abstract: We explore the possibility of improving the $\Lambda$CDM model at megaparsecscales by introducing a scalar interaction which increases the mutualgravitational attraction of dark matter particles. Using N-body simulations, westudy the spatial distribution of dark matter particles and halos. We measurethe effect of modifications in the Newton-s gravity on properties of thetwo-point correlation function, the dark matter power spectrum, the cumulativehalo mass function and density probability distribution functions. The resultslook promising: the scalar interactions produce desirable features atmegaparsec scales without spoiling the $\Lambda$CDM successes at larger scales.



Autor: Wojciech A. Hellwing, Roman Juszkiewicz

Fuente: https://arxiv.org/







Documentos relacionados