Effect of electromagnetic dipole dark matter on energy transport in the solar interior
File(s)1610.06737.pdf (1.85 MB)
Accepted version
Author(s)
Type
Journal Article
Abstract
In recent years, a revised set of solar abundances has led to a discrepancy in the sound-speed profile between helioseismology and theoretical solar models. Conventional solutions require additional mechanisms for energy transport within the Sun. Vincent et al. have recently suggested that dark matter with a momentum or velocity dependent cross section could provide a solution. In this work, we consider three models of dark matter with such cross sections and their effect on the stellar structure. In particular, the three models incorporate dark matter particles interacting through an electromagnetic dipole moment: an electric dipole, a magnetic dipole or an anapole. Each model is implemented in the DarkStec stellar evolution program, which incorporates the effects of dark matter capture and heat transport within the solar interior. We show that dark matter with an anapole moment of ~ 1 GeV−2 or magnetic dipole moment of ~ 10−3μp can improve the sound-speed profile, small frequency separations and convective zone radius with respect to the Standard Solar Model. However, the required dipole moments are strongly excluded by direct detection experiments.
Date Issued
2017-03-01
Date Acceptance
2017-02-28
Citation
Journal of Cosmology and Astroparticle Physics, 2017, 2017 (3)
ISSN
1475-7516
Publisher
IOP Publishing
Journal / Book Title
Journal of Cosmology and Astroparticle Physics
Volume
2017
Issue
3
Copyright Statement
©2017 IOP Publishing Ltd.
Subjects
Science & Technology
Physical Sciences
Astronomy & Astrophysics
Physics, Particles & Fields
Physics
dark matter theory
solar physics
DEGREE P-MODES
LINE FORMATION
MASSIVE PARTICLES
ABUNDANCE DETERMINATIONS
ELEMENTAL COMPOSITION
CHEMICAL-COMPOSITION
ELASTIC-SCATTERING
STELLAR EVOLUTION
SEPARATION RATIOS
COSMIC ASYMMETRY
Publication Status
Published
Article Number
029