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In LambdaCDM, massive satellites are dragged into the disk-plane by dynamical friction where they dissolve into a stellar thick disk and a more massive dark matter disk. The distinctive kinematics of the dark disk matches the stars that…

天体物理学 · 物理学 2009-06-23 T. Bruch , J. Read , L. Baudis , G. Lake

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…

星系天体物理 · 物理学 2015-05-13 J. I. Read , V. Debattista , O. Agertz , L. Mayer , A. M. Brooks , F. Governato , G. Lake

As disc galaxies form in a hierarchical cosmology, massive merging satellites are preferentially dragged towards the disc plane. The material accreted from these satellites forms a dark matter disc that contributes 0.25 - 1.5 times the…

高能天体物理现象 · 物理学 2010-04-15 Tobias Bruch , Annika H. G. Peter , Justin Read , Laura Baudis , George Lake

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…

星系天体物理 · 物理学 2015-05-13 J. I. Read , L. Mayer , A. M. Brooks , F. Governato , G. Lake

Massive satellite accretions onto early galactic disks can lead to the deposition of dark matter in disk-like configurations that co-rotate with the galaxy. This phenomenon has potentially dramatic consequences for dark matter detection…

星系天体物理 · 物理学 2011-02-11 Chris W. Purcell , James S. Bullock , Manoj Kaplinghat

Recent N-body simulations indicate that a thick disc of dark matter, co-rotating with the stellar disc, forms in a galactic halo after a merger at a redshift $z<2$. The existence of such a dark disc component in the Milky Way could affect…

星系天体物理 · 物理学 2014-11-20 Fu-Sin Ling

Direction sensitive direct detection of Weakly Interacting Massive Particles (WIMPs) as dark matter would provide an unambiguous non-gravitational signature of dark matter (DM). The diurnal variation of DM signal due to earth's rotation…

高能物理 - 唯象学 · 物理学 2012-04-16 Abhijit Bandyopadhyay , Debasish Majumdar

Weakly interacting massive particles (WIMPs) are a viable candidate for the relic abundance of dark matter (DM) produced in the early universe. So far WIMPs have eluded direct detection through interactions with baryonic matter. Neutrino…

天体物理学 · 物理学 2009-11-13 Zacharia Myers , Adi Nusser

Rates for detection of weakly-interacting massive-particle (WIMP) dark matter are usually carried out assuming the Milky Way halo is an isothermal sphere. However, it is possible that our halo is not precisely spherical; it may have some…

高能物理 - 唯象学 · 物理学 2010-11-30 Marc Kamionkowski , Ali Kinkhabwala

Over a handful of rotation periods, dynamical processes in barred galaxies induce non-axisymmetric structure in dark matter halos. Using n-body simulations of a Milky Way-like barred galaxy, we identify both a trapped dark-matter component,…

高能物理 - 唯象学 · 物理学 2017-02-01 Michael S. Petersen , Neal Katz , Martin D. Weinberg

Weakly Interacting Massive Particles (WIMPs) are one of the leading candidates for Dark Matter. Currently, the most promising method to detect WIMPs is the direct detection of the recoil energy deposited in a low-background laboratory…

天体物理学 · 物理学 2011-11-10 Chung-Lin Shan

Cosmological observations indicate that most of the matter in the Universe is Dark Matter. Dark Matter in the form of Weakly Interacting Massive Particles (WIMPs) can be detected directly, via its elastic scattering off target nuclei. Most…

We investigate the presence and importance of dark matter discs in a sample of 24 simulated Milky Way galaxies in the APOSTLE project, part of the EAGLE programme of hydrodynamic simulations in Lambda-CDM cosmology. It has been suggested…

星系天体物理 · 物理学 2016-07-12 Matthieu Schaller , Carlos S. Frenk , Azadeh Fattahi , Julio F. Navarro , Kyle A. Oman , Till Sawala

Weakly Interacting Massive Particle (WIMP) direct detection experiments are just reaching the sensitivity required to detect Galactic dark matter in the form of neutralinos (or indeed any stable weakly interacting particle). Detection…

天体物理学 · 物理学 2007-05-23 Anne M Green

Weakly Interacting Massive Particles (WIMPs), are a leading candidate for the dark matter that is observed to constitute ~25% of the total mass-energy density of the Universe. The direct detection of relic WIMPs (those produced during the…

仪器与探测器 · 物理学 2017-08-23 Tarek Saab

The next generation of dark matter (DM) direct detection experiments and neutrino telescopes will probe large swaths of dark matter parameter space. In order to interpret the signals in these experiments, it is necessary to have good models…

高能天体物理现象 · 物理学 2009-07-30 Annika H. G. Peter

We extract at redshift z=0 a Milky Way sized object including gas, stars and dark matter (DM) from a recent, high-resolution cosmological N-body simulation with baryons. Its resolution is sufficient to witness the formation of a rotating…

星系天体物理 · 物理学 2014-11-20 F. -S. Ling , E. Nezri , E. Athanassoula , R. Teyssier

Weakly interacting massive particles (WIMPs) are one of the leading candidates for dark matter. Currently, the most promising method to detect many different WIMP candidates is the direct detection of the recoil energy deposited in a…

天体物理学 · 物理学 2010-10-27 Manuel Drees , Chung-Lin Shan

Direct detection of dark matter with directional sensitivity is a promising concept for improving the search for weakly interacting massive particles. With information on the direction of WIMP induced nuclear recoils one has access to the…

高能物理 - 唯象学 · 物理学 2015-10-15 Ciaran A. J. O'Hare

The signals in dark matter direct-detection experiments should exhibit modulation signatures due to the Earth's motion with respect to the Galactic dark matter halo. The annual and daily modulations, due to the Earth's revolution about the…

宇宙学与河外天体物理 · 物理学 2016-06-21 Vivian Britto , Joel Meyers
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