Dark matter halo response to the disc growth
نویسندگان
چکیده
منابع مشابه
Dark matter halo response to the disk growth
We consider the sensitivity of the circular-orbit adiabatic contraction approximation (Barnes & White 1984; Blumenthal et al. 1986) to the timing of baryon condensation and the orbital structure of dark matter halos in the ΛCDM paradigm. Using one-dimensional hydrodynamic simulations including the dark matter halo mass accretion history and gas cooling, we demonstrate that the adiabatic approxi...
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The dark matter problem will be solved only when all of the dark matter is accounted for. Although wimps may be discovered in direct detection experiments soon, we will not know what fraction of the dark matter halo they compose until we measure their local density. In this talk, I will offer a novel method to determine the mass of a wimp from direct detection experiments alone using kinematica...
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High energy particles are produced by the annihilation of dark matter particles in our galaxy. These are presently searched for using balloon-borne an-tiproton and positron detectors and large area, deep underground neutrino telescopes. Dark matter particles, trapped inside the sun, are an abundant source of such neutrinos. From both the cosmological and particle physics points of view the ligh...
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In an earlier paper we quantified the mean merger rate of dark matter haloes as a function of redshift z, descendant halo mass M0, and progenitor halo mass ratio ξ using the Millennium simulation of the ΛCDM cosmology. Here we broaden that study and investigate the dependence of the merger rate of haloes on their surrounding environment. A number of local mass overdensity variables, both includ...
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Gibson and Flynn cite several arguments to support their claim that our study (1) greatly overestimated the space density of halo white dwarfs. The first stems from a recomputation of our 1/V max calculation. Their new value actually lies within the uncertainty in our estimate, however, so it is not clear to begin with that there is any discrepancy. Regardless of how the numbers were calculated...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2006
ISSN: 0035-8711,1365-2966
DOI: 10.1111/j.1365-2966.2006.10990.x