researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions
Showing 1992Show all

11 papers · 1 filter

hep-ph1992★ 105 cited

Detailed Stability Analysis of Electroweak Strings

Margaret James, Leandros Perivolaropoulos, Tanmay Vachaspati

We give a detailed stability analysis of the Z-string in the standard electroweak model. We identify the mode that determines the stability of the string and numerically map the re…

hep-ph1992★ 33 cited

On the Statistics of CMB Fluctuations Induced by Topological Defects

Leandros Perivolaropoulos

We use the analytical model recently introduced in Ref. \cite{lp92}, to investigate the statistics of temperature fluctuations on the cosmic microwave background (CMB), induced by…

astro-ph1992★ 2 cited

Gamma-Ray Bursts and Neutron Star Mergers - Possibly the Strongest Explosions in the Universe

Tsvi Piran

-ray bursts have baffled theorists ever since their accidental discovery at the sixties. We suggest that these bursts originate in merger of neutron star binaries, taking place…

astro-ph1992★ 38 cited

Fireballs in the Galactic Halo and -Ray Bursts

Tsvi Piran, Amotz Shemi

If gamma ray burst sources are in the galactic halo they inevitably involve a creation of an opaque pair plasma fireball, just like in cosmological sources. We find that the typica…

hep-ph1992★ 324 cited

Primordial magnetic fields from pseudo-Goldstone bosons

W. Daniel Garretson, George B. Field, Sean M. Carroll

The existence of large-scale magnetic fields in galaxies is well established, but there is no accepted mechanism for generating a primordial field which could grow into what is obs…

gr-qc1992

Comparison of the Sachs-Wolfe Effect for Gaussian and Non-Gaussian Fluctuations

Jong H. Kung

A consequence of non-Gaussian perturbations on the Sachs-Wolfe effect is studied. For a particular power spectrum, predicted Sachs-Wolfe effects are calculated for two cases: Gauss…

hep-ph1992★ 86 cited

COBE vs Cosmic Strings: An Analytical Model

Leandros Perivolaropoulos

We construct a simple analytical model to study the effects of cosmic strings on the microwave background radiation. Our model is based on counting random multiple impulses inflict…

hep-ph1992★ 14 cited

Nontopological Global Field Dynamics

Leandros Perivolaropoulos

We use arguments based on Derrick's theorem to show that the property of collapse which is the key feature of global texture appears in several field theory models with broken glob…

hep-ph1992★ 5 cited

Large Scale Structure by Global Monopoles and Cold Dark Matter

Leandros Perivolaropoulos

A cosmological model in which the primordial perturbations are provided by global monopoles and in which the dark matter is cold has several interesting features. The model is norm…

astro-ph1992★ 192 cited

Cosmic Microwave Background Probes Models of Inflation

R. L. Davis, H. M. Hodges, G. F. Smoot +2

Inflation creates both scalar (density) and tensor (gravity wave) metric perturbations. We find that the tensor mode contribution to the CMB anisotropy on large-angular scales can…

astro-ph1992★ 183 cited

Expanding Photospheres of Type II Supernovae and the Extragalactic Distance Scale

B P Schmidt, R P Kirshner, R G Eastman

We use the Expanding Photosphere Method to determine distances to 10 type II supernovae. The effects of asymmetries, extinction, and flux dilution are explored. Using empirical evi…