scholarly journals ASTROPHYSICAL UNCERTAINTIES ON DIRECT DETECTION EXPERIMENTS

2012 ◽  
Vol 27 (03) ◽  
pp. 1230004 ◽  
Author(s):  
ANNE M. GREEN
Keyword(s):  
Dark Matter ◽  
Milky Way ◽  
Direct Detection ◽  
Event Rate ◽  
Weakly Interacting Massive Particles ◽  
Dark Matter Halos ◽  
Matter Distribution ◽  
Direction Dependence ◽  
Dark Matter Distribution ◽  
Escape Speed

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 we review methods for modeling the dark matter distribution. We then discuss observational determinations of the local dark matter density, circular speed and escape speed, and the results of numerical simulations of Milky Way-like dark matter halos. In each case we highlight the uncertainties and assumptions made. We then overview the resulting uncertainties in the signals expected in direct detection experiments, specifically the energy, time and direction dependence of the event rate. Finally we conclude by discussing techniques for handling the astrophysical uncertainties when interpreting data from direct detection experiments.

scholarly journals DARK MATTER DYNAMICS AND INDIRECT DETECTION

2005 ◽  
Vol 20 (14) ◽  
pp. 1021-1036 ◽  
Author(s):  
GIANFRANCO BERTONE ◽  
DAVID MERRITT
Keyword(s):  
Dark Matter ◽  
Total Mass ◽  
Galactic Center ◽  
Direct Detection ◽  
Indirect Detection ◽  
Matter Distribution ◽  
Dark Matter Distribution ◽  
Particle Dark Matter ◽  
The Universe ◽  
Rule Out

Non-baryonic, or "dark", matter is believed to be a major component of the total mass budget of the Universe. We review the candidates for particle dark matter and discuss the prospects for direct detection (via interaction of dark matter particles with laboratory detectors) and indirect detection (via observations of the products of dark matter self-annihilations), focusing in particular on the Galactic center, which is among the most promising targets for indirect detection studies. The gravitational potential at the Galactic center is dominated by stars and by the supermassive black hole, and the dark matter distribution is expected to evolve on sub-parsec scales due to interaction with these components. We discuss the dominant interaction mechanisms and show how they can be used to rule out certain extreme models for the dark matter distribution, thus increasing the information that can be gleaned from indirect detection searches.

scholarly journals Analysis of the very inner Milky Way dark matter distribution and gamma-ray signals

2016 ◽  
Vol 94 (12) ◽  
Author(s):  
V. Gammaldi ◽  
V. Avila-Reese ◽  
O. Valenzuela ◽  
A. X. Gonzalez-Morales
Keyword(s):  
Dark Matter ◽  
Milky Way ◽  
Gamma Ray ◽  
Matter Distribution ◽  
Dark Matter Distribution

scholarly journals Baryonic impact on the dark matter distribution in Milky Way-sized galaxies and their satellites

2016 ◽  
Vol 458 (2) ◽  
pp. 1559-1580 ◽  
Author(s):  
Qirong Zhu ◽  
Federico Marinacci ◽  
Moupiya Maji ◽  
Yuexing Li ◽  
Volker Springel ◽  
...  
Keyword(s):  
Dark Matter ◽  
Milky Way ◽  
Matter Distribution ◽  
Dark Matter Distribution

scholarly journals Bayesian reconstruction of the Milky Way dark matter distribution

2019 ◽  
Vol 2019 (09) ◽  
pp. 046-046 ◽  
Author(s):  
E.V. Karukes ◽  
M. Benito ◽  
F. Iocco ◽  
R. Trotta ◽  
A. Geringer-Sameth
Keyword(s):  
Dark Matter ◽  
Milky Way ◽  
Matter Distribution ◽  
Bayesian Reconstruction ◽  
Dark Matter Distribution

scholarly journals Dark Matter distribution in the Milky Way: microlensing and dynamical constraints

2011 ◽  
Vol 2011 (11) ◽  
pp. 029-029 ◽  
Author(s):  
Fabio Iocco ◽  
Miguel Pato ◽  
Gianfranco Bertone ◽  
Philippe Jetzer
Keyword(s):  
Dark Matter ◽  
Milky Way ◽  
Matter Distribution ◽  
Dynamical Constraints ◽  
Dark Matter Distribution

scholarly journals MC2: CONSTRAINING THE DARK MATTER DISTRIBUTION OF THE VIOLENT MERGING GALAXY CLUSTER CIZA J2242.8+5301 BY PIERCING THROUGH THE MILKY WAY

2015 ◽  
Vol 802 (1) ◽  
pp. 46 ◽  
Author(s):  
M. James Jee ◽  
Andra Stroe ◽  
William Dawson ◽  
David Wittman ◽  
Henk Hoekstra ◽  
...  
Keyword(s):  
Dark Matter ◽  
Milky Way ◽  
Galaxy Cluster ◽  
Matter Distribution ◽  
Dark Matter Distribution

scholarly journals The barred inner Milky Way: dynamical models from surveys

2017 ◽  
Vol 13 (S334) ◽  
pp. 73-81
Author(s):  
Ortwin Gerhard
Keyword(s):  
Dark Matter ◽  
Survey Data ◽  
Milky Way ◽  
Matter Distribution ◽  
Dynamical Models ◽  
Unique Case ◽  
Dynamical Equilibrium ◽  
Pattern Speed ◽  
Central Bulge ◽  
Dark Matter Distribution

AbstractThe Milky Way is a barred galaxy whose central bulge has a box/peanut shape and consists of multiple stellar populations with different orbit distributions. This review describes dynamical and chemo-dynamical equilibrium models for the Bulge, Bar, and inner Disk based on recent survey data. Some of the highlighted results include (i) stellar mass determinations for the different Galactic components, (ii) the need for a core in the dark matter distribution, (iii) a revised pattern speed putting corotation at ~6 kpc, (iv) the strongly barred distribution of the metal-rich stars, and (v) the radially varying dynamics of the metal-poor stars which is that of a thick disk-bar outside ~1 kpc, but changes into an inner centrally concentrated component with several possible origins. On-going and future surveys will refine this picture, making the Milky Way a unique case for studying how similar galaxies form and evolve.

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