Here we make the first attempt to put precise lower limits on the mass of the dark matter particle, assuming it is a sterile neutrino. We begin by making the first published cored dark halo fits to the line of sight velocity dispersions as a function of radius (taken from Walker et al. 2007) for six of the Milky Way’s dwarf spheroidal galaxies. We use Osipkov-Merritt velocity anisotropy profile...

Abstract The Einstein Telescope (ET) is a proposed third-generation gravitational-wave (GW) underground observatory. It will have greatly increased sensitivity compared to current GW detectors, and it designed extend the observation band down few Hz. At these frequencies, major limitation of ET predicted be due gravitational fluctuations produced by environment, most importantly seismic field, ...

The explosive atmosphere may be caused by flammable gases / vapours or combustible dust. If the amount of substance, mixed with air, is sufficient, then a source ignition needed to cause an explosion. Liquids (for example petrol and other fuels) solvents from industrial products emit which, when can ignite explode. At normal temperatures, liquids enough form mixtures heat, often thick, black, t...