One dark matter mystery: halos in the cosmic web

3rd International Conference on Mathematical Modeling in Physical Sciences

物理学;数学

Gaite, Jose^1

Instituto de Microgravedad IDR, ETSIAE, Universidad Politécnica de Madrid, Madrid

E-28040, Spain^1

关键词: Cold dark matters;    Cosmological modeling;    Dark matter;    Dark matter halos;    Small scale;    Web structures;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/574/1/012040/pdf
DOI  :  10.1088/1742-6596/574/1/012040

来源: IOP

【 摘 要 】

The current cold dark matter cosmological model explains the large scale cosmic web structure but is challenged by the observation of a relatively smooth distribution of matter in galactic clusters. We consider various aspects of modeling the dark matter around galaxies as distributed in smooth halos and, especially, the smoothness of the dark matter halos seen in N-body cosmological simulations. We conclude that the problems of the cold dark matter cosmology on small scales are more serious than normally admitted.