Primordial dark matter halos from fifth forces

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Savastano , S , Amendola , L , Rubio , J & Wetterich , C 2019 , ' Primordial dark matter halos from fifth forces ' , Physical Review D , vol. 100 , no. 8 , 083518 . https://doi.org/10.1103/PhysRevD.100.083518

Title: Primordial dark matter halos from fifth forces
Author: Savastano, Stefano; Amendola, Luca; Rubio, Javier; Wetterich, Christof
Contributor: University of Helsinki, Helsinki Institute of Physics
Date: 2019-10-14
Language: eng
Number of pages: 14
Belongs to series: Physical Review D
ISSN: 2470-0010
URI: http://hdl.handle.net/10138/308451
Abstract: We argue that primordial dark matter halos could be generated during radiation domination by long-range attractive forces stronger than gravity. In this paper, we derive the conditions under which these structures could dominate the dark matter content of the Universe while passing microlensing constraints and cosmic microwave background energy injection bounds. The dark matter particles would be clumped in objects in the solar mass range with typical sizes of the order of the solar system. Consequences for direct dark matter searches are important.
Subject: CANDIDATE MICROLENSING EVENT
LAMBDA-CDM SUCCESS
LOW-SCALE PROBLEMS
BLACK-HOLES
MAGELLANIC CLOUDS
DENSITY PROFILES
OGLE VIEW
COSMOLOGIES
PROJECT
OBJECTS
115 Astronomy, Space science
114 Physical sciences
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