Next Article in Journal
Millimeter-Wave Monitoring of Active Galactic Nuclei with the Africa Millimetre Telescope
Next Article in Special Issue
Halo Substructure Boosts to the Signatures of Dark Matter Annihilation
Previous Article in Journal
The Self-Control of Cosmic Rays
Previous Article in Special Issue
γ-ray and ν Searches for Dark-Matter Subhalos in the Milky Way with a Baryonic Potential
Article Menu
Issue 2 (June) cover image

Export Article

Open AccessArticle

Remnants of Galactic Subhalos and Their Impact on Indirect Dark-Matter Searches

1
Laboratoire Univers et Particules de Montpellier (LUPM), Université de Montpellier & CNRS, Place Eugène Bataillon, 34095 Montpellier CEDEX 05, France
2
Instituto de Fisica Teórica, C/ Nicolás Cabrera 13-15, Campus de Cantoblanco UAM, 28049 Madrid, Spain
*
Author to whom correspondence should be addressed.
Galaxies 2019, 7(2), 65; https://doi.org/10.3390/galaxies7020065
Received: 6 May 2019 / Revised: 28 May 2019 / Accepted: 29 May 2019 / Published: 4 June 2019
(This article belongs to the Special Issue The Role of Halo Substructure in Gamma-Ray Dark Matter Searches)
  |  
PDF [1080 KB, uploaded 18 June 2019]
  |     |  

Abstract

Dark-matter subhalos, predicted in large numbers in the cold-dark-matter scenario, should have an impact on dark-matter-particle searches. Recent results show that tidal disruption of these objects in computer simulations is overefficient due to numerical artifacts and resolution effects. Accounting for these results, we re-estimated the subhalo abundance in the Milky Way using semianalytical techniques. In particular, we showed that the boost factor for gamma rays and cosmic-ray antiprotons is increased by roughly a factor of two. View Full-Text
Keywords: particle dark matter; subhalos; indirect searches. particle dark matter; subhalos; indirect searches.
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Stref, M.; Lacroix, T.; Lavalle, J. Remnants of Galactic Subhalos and Their Impact on Indirect Dark-Matter Searches. Galaxies 2019, 7, 65.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Galaxies EISSN 2075-4434 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top