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A fundamental prediction of the cold dark matter (CDM) model of structure formation is the existence of a vast population of dark matter haloes extending to subsolar masses. By contrast, other dark matter models, such as a warm thermal…

Cosmology and Nongalactic Astrophysics · Physics 2022-02-10 Qiuhan He , Andrew Robertson , James Nightingale , Shaun Cole , Carlos S. Frenk , Richard Massey , Aristeidis Amvrosiadis , Ran Li , Xiaoyue Cao , Amy Etherington

We present a new formalism designed to discover dark matter annihilation occurring in the Milky Way's dwarf galaxies. The statistical framework extracts all available information in the data by simultaneously combining observations of all…

Cosmology and Nongalactic Astrophysics · Physics 2015-04-28 Alex Geringer-Sameth , Savvas M. Koushiappas , Matthew G. Walker

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…

Astrophysics of Galaxies · Physics 2024-08-15 Patrick G. Staudt , James S. Bullock , Michael Boylan-Kolchin , David Kirkby , Andrew Wetzel , Xiaowei Ou

Joint analyses of small-scale cosmological structure probes are relatively unexplored and promise to advance measurements of microphysical dark matter properties using heterogeneous data. Here, we present a multidimensional analysis of dark…

Cosmology and Nongalactic Astrophysics · Physics 2021-08-10 Ethan O. Nadler , Simon Birrer , Daniel Gilman , Risa H. Wechsler , Xiaolong Du , Andrew Benson , Anna M. Nierenberg , Tommaso Treu

Dark matter direct and indirect detection signals depend crucially on the dark matter distribution. While the formation of large scale structure is independent of the nature of the cold dark matter (CDM), the fate of inhomogeneities on…

Astrophysics · Physics 2011-05-05 Anne M. Green , Stefan Hofmann , Dominik J. Schwarz

Directional detection is a promising direct Dark Matter (DM) search strategy. The angular distribution of the nuclear recoil tracks from WIMP events should present an anisotropy in galactic coordinates. This strategy requires both a…

Instrumentation and Methods for Astrophysics · Physics 2013-06-19 Q. Riffard , J. Billard , G. Bosson , O. Bourrion , O. Guillaudin , J. Lamblin , F. Mayet , J. -F. Muraz , J. -P. Richer , D. Santos , L. Lebreton , D. Maire , J. Busto , J. Brunner , D. Fouchez

Milky Way (MW) satellites reside within dark matter (DM) subhalos with a broad distribution of circular velocity profiles. This diversity is enhanced with the inclusion of ultra-faint satellites, which seemingly have very high DM densities,…

Astrophysics of Galaxies · Physics 2019-09-25 Jesús Zavala , Mark R. Lovell , Mark Vogelsberger , Jan D. Burger

In our galaxy, the white dwarfs (WDs) will inevitably capture the dark matter (DM) particles streaming through them, if there exist interactions between DM particles and nuclei/electrons. At the same time, these DM particles can also be…

High Energy Physics - Phenomenology · Physics 2024-01-18 Jia-Shu Niu , Hui-Fang Xue

In the cosmological paradigm, cold dark matter (DM) dominates the mass content of the Universe and is present at every scale. Candidates for DM include many extensions of the standard model, such as weakly interacting massive particles…

High Energy Astrophysical Phenomena · Physics 2019-08-13 Benjamin Zitzer

Several astrophysical and cosmological observations suggest the existence of dark matter (DM) through its gravitational effects, yet its nature remains elusive. Despite the lack of DM signals from direct detection experiments, efforts…

High Energy Astrophysical Phenomena · Physics 2025-06-04 Aman Gupta , Pooja Bhattacharjee , Pratik Majumdar

The analysis of the vertical velocity dispersion of disc stars is the most direct astronomical means of estimating the local dark matter density, $\rho_{DM}$. Current estimates based on the mid-plane dynamic density use a local baryonic…

Astrophysics of Galaxies · Physics 2015-08-06 Frederic V. Hessman

An intermediate mass black hole (IMBH) may have a dark matter (DM) mini-halo around it and develop a spiky structure within less than a parsec from the IMBH. When a stellar mass object is captured by the mini-halo, it eventually infalls…

General Relativity and Quantum Cosmology · Physics 2013-06-03 Kazunari Eda , Yousuke Itoh , Sachiko Kuroyanagi , Joseph Silk

Dark Matter (DM) properties at small scales remain uncertain. Recent theoretical and observational advances have provided the tools to narrow them down. Here, we show for the first time that the correlation between internal velocities and…

Cosmology and Nongalactic Astrophysics · Physics 2024-11-01 Ivan Esteban , Annika H. G. Peter , Stacy Y. Kim

Measurements of the accelerations of stars enabled by time-series extreme-precision spectroscopic observations, from pulsar timing, and from eclipsing binary stars in the Solar Neighborhood offer insights into the mass distribution of the…

While Dark Matter (DM) is typically assumed to interact only very weakly with the particles of the Standard Model, many direct detection experiments are currently exploring regions of parameter space where DM can have a large scattering…

High Energy Physics - Phenomenology · Physics 2025-12-18 Agustín Lantero-Barreda , Carlos Centeno-Lorca , Bradley J. Kavanagh , Núria Castello-Mor

A leading candidate for astrophysical dark matter (DM) is a massive particle with a mass in the range from 50 GeV to greater than 10 TeV and an interaction cross section on the weak scale. The self-annihilation of such particles in…

High Energy Astrophysical Phenomena · Physics 2019-08-13 Robert G. Wagner

Dark matter (DM) is currently searched for with a variety of detection strategies. Accelerator searches are particularly promising, but even if Weakly Interacting Massive Particles (WIMPs) are found at the Large Hadron Collider (LHC), it…

High Energy Physics - Phenomenology · Physics 2010-10-13 Gianfranco Bertone , David G. Cerdeno , Mattia Fornasa , Roberto Ruiz de Austri , Roberto Trotta

With regard to the observed dark matter density profile in galaxies and clusters, the scalar dark matter scenario has been previously studied for potential detectability through gravitational wave observations at measurable signal-to-noise…

General Relativity and Quantum Cosmology · Physics 2025-12-17 Rajesh Karmakar , Debaprasad Maity , Kaustubh Mukund Vispute

We investigate singlet scalar dark matter (DM) candidate in a left-right symmetric gauge model with two Higgs bidoublets (2HBDM) in which the stabilization of the DM particle is induced by the discrete symmetries P and CP. According to the…

High Energy Physics - Phenomenology · Physics 2010-12-13 Wan-Lei Guo , Yue-Liang Wu , Yu-Feng Zhou

Indirect detection experiments typically measure the flux of annihilating dark matter (DM) particles propagating freely through galactic halos. We consider a new scenario where celestial bodies "focus" DM annihilation events, increasing the…

High Energy Astrophysical Phenomena · Physics 2021-05-05 Rebecca K. Leane , Tim Linden , Payel Mukhopadhyay , Natalia Toro
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