Publications (14)
Remnants of Galactic subhalos and their impact on indirect dark matter searches
Martin Stref, Thomas Lacroix, Julien Lavalle
Dark matter subhalos, predicted in large numbers in the cold dark matter scenario, should have an impact on particle dark matter searches. Recent results show that tidal disruption…
Tidal stripping of dark matter subhalos by baryons from analytical perspectives: disk shocking and encounters with stars
Gaétan Facchinetti, Martin Stref, Julien Lavalle
The cold dark matter (CDM) scenario predicts that galactic halos should host a huge amount of subhalos possibly lighter than planets, depending on the nature of dark matter. Predic…
Investigating the effect of Milky Way dwarf spheroidal galaxies extension on dark matter searches with Fermi-LAT data
Mattia Di Mauro, Martin Stref, Francesca Calore
Satellite galaxies of the Milky Way with high mass-to-light ratios and little baryon content, i.e. dwarf spheroidal galaxies (dSphs), are among the most promising targets to detect…
Gamma-ray sensitivity to dark matter subhalo modelling at high latitudes
Francesca Calore, Moritz Hütten, Martin Stref
Searches for "dark" subhaloes in gamma-ray point-like source catalogues are among promising strategies for indirect dark matter detection. Such a search is nevertheless affected by…
-ray and searches for dark matter subhalos in the Milky Way with a baryonic potential
Moritz Hütten, Martin Stref, Céline Combet +2
The distribution of dark matter (DM) subhalos in our Galaxy remains disputed, leading to varying -ray and flux predictions from their annihilation or decay. In this work,…
Modeling dark matter subhalos in a constrained galaxy: Global mass and boosted annihilation profiles
Martin Stref, Julien Lavalle
The interaction properties of cold dark matter (CDM) particle candidates, such as those of weakly interacting massive particles (WIMPs), generically lead to the structuring of dark…
Analytical insight into dark matter subhalo boost factors for Sommerfeld-enhanced - and -wave -ray signals
Gaétan Facchinetti, Martin Stref, Thomas Lacroix +4
As searches for thermal and self-annihilating dark matter (DM) intensify, it becomes crucial to include as many relevant physical processes and ingredients as possible to refine si…
Classification of gamma-ray targets for velocity-dependent and subhalo-boosted dark-matter annihilation
Thomas Lacroix, Gaétan Facchinetti, Judit Pérez-Romero +4
Gamma-ray observations have long been used to constrain the properties of dark matter (DM), with a strong focus on weakly interacting massive particles annihilating through velocit…
In-depth analysis of the clustering of dark matter particles around primordial black holes I: density profiles
Mathieu Boudaud, Thomas Lacroix, Martin Stref +2
Primordial black holes may have been produced in the early stages of the thermal history of the Universe after cosmic inflation. If so, dark matter in the form of elementary partic…
Investigating the detection of dark matter subhalos as extended sources with Fermi-LAT
Mattia Di Mauro, Martin Stref, Francesca Calore
Cold dark matter (DM) models for structure formation predict that DM subhalos are present in the Galaxy. In the standard paradigm of DM as weakly interacting massive particle, subh…
Predicting the dark matter velocity distribution in galactic structures: tests against hydrodynamic cosmological simulations
Thomas Lacroix, Arturo Núñez-Castiñeyra, Martin Stref +2
Reducing theoretical uncertainties in Galactic dark matter (DM) searches is an important challenge as several experiments are now delving into the parameter space relevant to popul…
Anatomy of Eddington-like inversion methods in the context of dark matter searches
Thomas Lacroix, Martin Stref, Julien Lavalle
Irrespective of the dark matter (DM) candidate, several potentially observable signatures derive from the velocity distribution of DM in halos, in particular in the Milky Way (MW)…
Statistics for dark matter subhalo searches in gamma rays from a kinematically constrained population model: Fermi-LAT-like telescopes
Gaétan Facchinetti, Julien Lavalle, Martin Stref
Cold dark matter subhalos are expected to populate galaxies in numbers. If dark matter self-annihilates, these objects turn into prime targets for indirect searches, in particular…
Robust cosmic-ray constraints on -wave annihilating MeV dark matter
Mathieu Boudaud, Thomas Lacroix, Martin Stref +1
We recently proposed a method to constrain -wave annihilating MeV dark matter from a combination of the Voyager 1 and the AMS-02 data on cosmic-ray electrons and positrons. Voya…