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We study the implications of galaxy formation on dark matter direct detection using high resolution hydrodynamic simulations of Milky Way-like galaxies simulated within the EAGLE and APOSTLE projects. We identify Milky Way analogues that…

The spatial and velocity distributions of dark matter particles in the Milky Way Halo affect the signals expected to be observed in searches for dark matter. Results from direct detection experiments are often analyzed assuming a simple…

Astrophysics of Galaxies · Physics 2016-11-08 Chris Kelso , Christopher Savage , Monica Valluri , Katherine Freese , Gregory S. Stinson , Jeremy Bailin

We study the local dark matter velocity distribution in simulated Milky Way-mass galaxies, generated at high resolution with both dark matter and baryons. We find that the dark matter in the Solar neighborhood is influenced appreciably by…

Astrophysics of Galaxies · Physics 2016-11-09 Jonathan D. Sloane , Matthew R. Buckley , Alyson M. Brooks , Fabio Governato

We use high-resolution, hydrodynamic, galaxy simulations from the Latte suite of FIRE-2 simulations to investigate the inherent variation of dark matter in sub-sampled regions around the Solar Circle of a Milky Way-type analogue galaxy and…

Astrophysics of Galaxies · Physics 2022-09-28 Grace E. Lawrence , Alan R. Duffy , Chris A. Blake , Philip F. Hopkins

We study high-resolution hydrodynamic simulations of Milky Way type galaxies obtained within the "Evolution and Assembly of GaLaxies and their Environments" (EAGLE) project, and identify the those that best satisfy observational constraints…

Astrophysics of Galaxies · Physics 2016-01-05 F. Calore , N. Bozorgnia , M. Lovell , G. Bertone , M. Schaller , C. S. Frenk , R. A. Crain , J. Schaye , T. Theuns , J. W. Trayford

We study three cosmological hydrodynamical simulations of Milky Way(MW)-sized halos including a comparison with the dark matter(DM)-only counterparts. We find one of our simulated galaxies with interesting MW-like features. Thanks to a…

Astrophysics of Galaxies · Physics 2015-06-19 Pol Mollitor , Emmanuel Nezri , Romain Teyssier

Making robust predictions for the phase space distribution of dark matter at the solar neighbourhood is vital for dark matter direct detection experiments. To date, almost all such predictions have been based on simulations that model the…

Astrophysics of Galaxies · Physics 2015-05-13 J. I. Read , L. Mayer , A. M. Brooks , F. Governato , G. Lake

We study the effects of dark matter self-interactions on the local dark matter distribution in selected Milky Way-like galaxies in the EAGLE hydrodynamical simulations. The simulations were run with two different self-interacting dark…

Cosmology and Nongalactic Astrophysics · Physics 2023-03-01 Elham Rahimi , Evan Vienneau , Nassim Bozorgnia , Andrew Robertson

We study the orbital properties of dark matter haloes by combining a spectral method and cosmological simulations of Milky Way-sized galaxies. We compare the dynamics and orbits of individual dark matter particles from both hydrodynamic and…

Astrophysics of Galaxies · Physics 2017-02-01 Qirong Zhu , Lars Hernquist , Federico Marinacci , Volker Springel , Yuexing Li

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 popular (particle or not) candidates. Since many DM signal…

Astrophysics of Galaxies · Physics 2020-10-20 Thomas Lacroix , Arturo Núñez-Castiñeyra , Martin Stref , Julien Lavalle , Emmanuel Nezri

Numerical simulations play an important role in current astronomy researches. Previous dark-matter-only simulations have represented the large-scale structure of the Universe. However, nowadays, hydro-dynamical simulations with baryonic…

Cosmology and Nongalactic Astrophysics · Physics 2017-10-09 Weiguang Cui , Youcai Zhang

Predicting the local flux of dark matter particles is vital for dark matter direct detection experiments. To date, such predictions have been based on simulations that model the dark matter alone. Here we include the influence of the…

Astrophysics of Galaxies · Physics 2015-05-13 J. I. Read , V. Debattista , O. Agertz , L. Mayer , A. M. Brooks , F. Governato , G. Lake

The sensitivity of direct detection experiments depends on the phase-space distribution of dark matter near the Sun, which can be modeled theoretically using cosmological hydrodynamical simulations of Milky Way-like galaxies. However,…

High Energy Physics - Phenomenology · Physics 2026-04-08 Dylan Folsom , Carlos Blanco , Mariangela Lisanti , Lina Necib , Mark Vogelsberger , Lars Hernquist

Directional detection is an important way to detect dark matter. An input to these experiments is the dark matter velocity distribution. Recent hydrodynamical simulations have shown that the dark matter velocity distribution differs…

Cosmology and Nongalactic Astrophysics · Physics 2018-02-12 Ranjan Laha

Dark matter (DM) direct detection experiments aim to place constraints on the DM--nucleon scattering cross-section and the DM particle mass. These constraints depend sensitively on the assumed local DM density and velocity distribution…

Cosmology and Nongalactic Astrophysics · Physics 2020-11-25 Robert Poole-McKenzie , Andreea S. Font , Billy Boxer , Ian G. McCarthy , Sergey Burdin , Sam G. Stafford , Shaun T. Brown

In this paper, we use hydrodynamic zoom-in simulations of Milky Way-type haloes to explore using dust as an observational tracer to discriminate between cold and warm dark matter (WDM) universes. Comparing a cold and 3.5 keV WDM particle…

Astrophysics of Galaxies · Physics 2024-10-28 Adam Ussing , Robert Mostoghiu Paun , Darren Croton , Celine Boehm , Alan Duffy , Chris Power

We have carried out a comparative analysis of the properties of dark matter halos in N-body and hydrodynamical simulations. We analyze their density profiles, shapes and kinematical properties with the aim of assessing the effects that…

Astrophysics · Physics 2009-10-30 P. B. Tissera , R. Dom\ci nguez-Tenreiro

Direct detection experiments are poised to detect dark matter in the form of weakly interacting massive particles (WIMPs). The signals expected in these experiments depend on the ultra-local WIMP density and velocity distribution. Firstly…

Cosmology and Nongalactic Astrophysics · Physics 2012-02-14 Anne M. Green

Dark matter particles may decay, emitting photons. Drawing on the EAGLE family of hydrodynamic simulations of galaxy formation -- including the APOSTLE and C-EAGLE simulations -- we assess the systematic uncertainties and scatter on the…

Cosmological surveys aim at answering fundamental questions about our Universe, including the nature of dark matter or the reason of unexpected accelerated expansion of the Universe. In order to answer these questions, two important…

Cosmology and Nongalactic Astrophysics · Physics 2019-04-02 Xinyue Zhang , Yanfang Wang , Wei Zhang , Yueqiu Sun , Siyu He , Gabriella Contardo , Francisco Villaescusa-Navarro , Shirley Ho
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