As an idealized model of the effects of energy release by supernovae during galaxy formation, we consider an explosion at the center of a halo which forms at the intersection of filaments in the plane of a cosmological pancake by gravitational instability during pancake collapse. Such halos resemble the virialized objects found in N–body simulations in a CDM universe and, therefore, serve as a ...

The SH waves from 21 underground nuclear explosions at Pahute Mesa (NTS) were used to investigate tectonic release. The equivalent double-couple representation of the tectonic release, which was constrained by waveform modeling and the polarity of sP, is very similar for all the explosions. The average orientation is a right-lateral, strike-slip fault trending N15°W. Seismic moments were determ...

The paper explores the physically-based modeling of a blast wave impact on surrounding objects. We propose a connected voxel representation of objects to model explosions that result in realistic solid debris, rather than flat polygons. The paper also presents improved fracture algorithms capable of accounting for the damage of multiple explosions. The important implementation issues and the re...

We discuss the optical spectropolarimetry of several core-collapse supernovae, SN 1996cb (Type IIB), SN 1997X (Type Ic), and SN 1998S (Type IIn). The data show polarization evolution of several spectral features at levels from 0.5% to above 4%. The observed line polarization is intrinsic to the supernovae and not of interstellar origin. These data suggest that the the distribution of ejected ma...

Assembling objects from building blocks by means of predefined combination rules leads to combinatorial explosions. Indeed, it does not matter, how many classes of building blocks or alternatives of combination rules are given provided one of both is two or larger, because then the number of possible objects commonly increases exponentially with the number of elements and soon exceeds the reali...

A bstract Small black holes are a powerful tool to explore infinite distances in moduli spaces. However, we show that 4d theories with scalar potential growing fast enough at infinity, it is energetically too costly for scalars diverge the core, and small hole puffs up into regular hole, or follows runaway behaviour. We derive critical exponent characterizing occurrence not of such explosions, ...