107 citations · 525 across the 22 of their papers we have counts for
4 papers · 1 filter
Degeneracy between warm and coupled cold dark matter: A clarifying note
Hermano Velten, Humberto A. Borges, Thiago R. P. Caramês
Wei et al [PRD 88, 043510 (2013)] have proposed the existence of a cosmological degeneracy between warm dark matter (WDM), modified gravity and coupled cold dark matter (CDM) cosmo…
Structure formation in a CDM universe
Hermano Velten, Thiago R. P. Caramês, Júlio C. Fabris +2
The possibility of dark matter being a dissipative component represents an option for the standard view where cold dark matter (CDM) particles behave on large scales as an ideal fl…
Non-linear dark matter collapse under diffusion
Hermano E. S. Velten, Thiago R. P. Caramês
Diffusion is one of the physical processes allowed for describing the large scale dark matter dynamics. At the same time, it can be seen as a possible mechanism behind the interact…
Spherical collapse for unified dark matter models
Thiago R. P. Caramês, Júlio C. Fabris, Hermano E. S. Velten
We study the non-linear spherical "top hat" collapse for Chaplygin and viscous unified cosmologies. The term unified refers to models where dark energy and dark matter are replaced…