We study nucleosynthesis in ’hypernovae’, i.e., supernovae with very large explosion energies ( ∼ > 10 ergs) for both spherical and aspherical explosions. The hypernova yields compared to those of ordinary corecollapse supernovae show the following characteristics: 1) Complete Siburning takes place in more extended region, so that the mass ratio between the complete and incomplete Si burning re...

We test the performance of high-frequency regional P/S discriminants to differentiate between earthquakes and explosions at test sites and over broad regions using a historical dataset of explosions recorded at the Borovoye observatory in Kazakhstan. We compare these explosions to modern recordings of earthquakes at the same location. We then evaluate the separation of the two types of events u...

The problem of monitoring for low magnitude nu clear explosions using seismic array data under a Comprehensive Test Ban Treaty CTBT requires a capability for distinguishing nuclear explosions from other seismic events Industrial mining explosions are one type of seismic event that needs to be ruled out when trying to detect nuclear tests We consider a Bayesian approach to the problem of detecti...

We present results of simulations of stellar collapse and explosions in spherical symmetry for progenitor stars in the 8–10 M⊙ range with an O-Ne-Mg core. The simulations were continued until nearly one second after core bounce and were performed with the P/V code with a variable Eddington factor solver for the neutrino transport, including a state-of-the-art treatment of neutrino...

A detailed analysis of the surface wave radiation from two underground explosions (BILBY and SHOAL) and an earthquake near Fallon, Nevada, whose epicentre is only 60 km from SHOAL, indicates that: (1) at long periods the surface wave radiation from the earthquake can be explained by a pure quadrupole (double couple) source, but at higher frequencies the radiation pattern contains asymmetries wh...

BACKGROUND Explosions cause more complex and multiple forms of damage than any other wounding agent, are the leading cause of death on the battlefield, and are often used by terrorists. Because explosion-related injuries are infrequently seen in civilian practice, a broader base of knowledge is needed in the medical community to address acute needs of patients with explosion-related injuries an...