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This report summarises progress made in estimating the local density of dark matter ($\rho_{\mathrm{DM,\odot}}$), a quantity that is especially important for dark matter direct detection experiments. We outline and compare the most common…

星系天体物理 · 物理学 2021-10-27 Pablo F. de Salas , Axel Widmark

Dark matter comprises the bulk of the matter in the universe but its particle nature and cosmological origin remain mysterious. Knowledge of the dark matter density distribution in the Milky Way Galaxy is crucial to both our understanding…

The rotation curve of the Milky Way is commonly used to estimate the local dark matter density $\rho_{{\rm DM},\odot}$. However, the estimates are subject to the choice of the distribution of baryons needed in this type of studies. In this…

星系天体物理 · 物理学 2019-10-16 P. F. de Salas , K. Malhan , K. Freese , K. Hattori , M. Valluri

The local density of dark matter is an important quantity. On the one hand, its value is needed for dark matter direct detection searches. On the other hand, a precise and robust determination of the local dark matter density would help us…

星系天体物理 · 物理学 2020-05-20 Pablo F. de Salas

We present the recent robust determination of the value of the Dark Matter density at the Sun's location ($\rho_\odot$) with a technique that does not rely on a global mass-modeling of the Galaxy. The method is based on the local equation…

宇宙学与河外天体物理 · 物理学 2012-12-18 Fabrizio Nesti , Paolo Salucci

Although commonly assumed to be spherical, dark matter halos are predicted to be non-spherical by N-body simulations and their asphericity has a potential impact on the systematic uncertainties in dark matter searches. The evaluation of…

宇宙学与河外天体物理 · 物理学 2015-06-19 Nicolas Bernal , Jaime E. Forero-Romero , Raghuveer Garani , Sergio Palomares-Ruiz

An accurate knowledge of the dark matter distribution in the Milky Way is of crucial importance for galaxy formation studies and current searches for particle dark matter. In this paper we set new dynamical constraints on the Galactic dark…

星系天体物理 · 物理学 2015-12-03 Miguel Pato , Fabio Iocco , Gianfranco Bertone

The rotation curve, the total mass and the gravitational potential of the Galaxy are sensitive measurements of the dark matter halo profile. In this publication cuspy and cored DM halo profiles are analysed with respect to recent…

宇宙学与河外天体物理 · 物理学 2010-11-30 Markus Weber , Wim de Boer

I review current efforts to measure the mean density of dark matter near the Sun. This encodes valuable dynamical information about our Galaxy and is also of great importance for 'direct detection' dark matter experiments. I discuss…

星系天体物理 · 物理学 2014-06-16 J. I. Read

In this work we characterize the distribution of Dark Matter (DM) in the Milky Way (MW), and its uncertainties, adopting the well known "Rotation Curve" method. We perform a full marginalization over the uncertainties of the Galactic…

星系天体物理 · 物理学 2019-06-12 Maria Benito , Alessandro Cuoco , Fabio Iocco

Despite strong evidence for the existence of large amounts of dark matter (DM) in our Universe, there is no direct indication of its presence in our own solar system. All estimates of the local DM density rely on extrapolating results on…

高能物理 - 唯象学 · 物理学 2021-12-23 Bradley J. Kavanagh , Timon Emken , Riccardo Catena

We use FIRE-2 zoom simulations of Milky Way size disk galaxies to derive easy-to-use relationships between the observed circular speed of the Galaxy at the Solar location, $v_\mathrm{c}$, and dark matter properties of relevance for direct…

星系天体物理 · 物理学 2024-08-15 Patrick G. Staudt , James S. Bullock , Michael Boylan-Kolchin , David Kirkby , Andrew Wetzel , Xiaowei Ou

We present a novel study on the problem of constructing mass models for the Milky Way, concentrating on features regarding the dark matter halo component. We have considered a variegated sample of dynamical observables for the Galaxy,…

宇宙学与河外天体物理 · 物理学 2014-11-20 Riccardo Catena , Piero Ullio

The differential event rate in Weakly Interacting Massive Particle (WIMP) direct detection experiments depends on the local dark matter density and velocity distribution. Accurate modelling of the local dark matter distribution is therefore…

宇宙学与河外天体物理 · 物理学 2017-08-02 Anne M Green

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…

星系天体物理 · 物理学 2020-10-20 Thomas Lacroix , Arturo Núñez-Castiñeyra , Martin Stref , Julien Lavalle , Emmanuel Nezri

The theoretical interpretation of dark matter (DM) experiments is hindered by uncertainties on the dark matter density and velocity distribution inside the Solar System. In order to quantify those uncertainties, we present a parameter that…

高能物理 - 唯象学 · 物理学 2018-12-14 Alejandro Ibarra , Bradley J. Kavanagh , Andreas Rappelt

We probe the gravitational force perpendicular to the Galactic plane at the position of the Sun based on a sample of red giants, with measurements taken from the DR3 Gaia catalogue. Measurements far out of the Galactic plane up to 3.5 kpc…

星系天体物理 · 物理学 2024-07-02 O. Bienaymé , A. C. Robin , J. -B. Salomon , C. Reylé

The fact that dark matter (DM), thus far, has revealed itself only on scales of galaxies and larger, again thrusts onto astrophysics the opportunity and the responsibility to confront the age old mystery "What is the nature of matter?" By…

We apply a new method to determine the local disc matter and dark halo matter density to kinematic and position data for \sim2000 K dwarf stars taken from the literature. Our method assumes only that the disc is locally in dynamical…

星系天体物理 · 物理学 2012-08-28 Silvia Garbari , Chao Liu , Justin I. Read , George 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,…

高能物理 - 唯象学 · 物理学 2026-04-08 Dylan Folsom , Carlos Blanco , Mariangela Lisanti , Lina Necib , Mark Vogelsberger , Lars Hernquist
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