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Very-Late-Type Spiral and Irregular Galaxy Supernova Search

The Space Plasma Wave Group within the Department of Physics and Astronomy at the University of Iowa in Iowa City, Iowa, provides information about the Very-Late-Type Spiral and Irregular Galaxy Supernova Search project. The purpose of the project is to discover new supernovae in very-late-type and irregular galaxies. The rates of occurrence of supernovae of different types is to be determined. Images of supernovae are available.

The purpose of the project is to discover new supernovae in very-late-type and irregular galaxies. The rates of occurrence of supernovae of different types is to be determined. Images of supernovae are available.

Supernova Science with an Advanced Compton Telescope

Gamma-ray line emission is a direct probe of the nucleosynthesis that occurs in Type Ia supernovae. In this work we describe the wealth of information obtainable from observations of this emission. Advanced Compton telescope designs are being studied by the Naval Research Laboratory, with the goal being the construction of a telescope which would be capable of detecting SNe Ia to distances in excess of 100 Mpc. We describe the instrument capabilities and the design issues that are being addressed. We assume a SN Ia rate and quantify the frequency at which an advanced Compton telescope could detect, discriminate between, and diagnose Type Ia supernovae. From these estimates, we argue that an advanced Compton telescope would be a powerful astrophysical tool.

Gamma-ray line emission is a direct probe of the nucleosynthesis that occurs in Type Ia supernovae. In this work we describe the wealth of information obtainable from observations of this emission.

Hadronic Gamma Rays from Supernova Remnants

A gas cloud near a supernova remnant (SNR) provides a target for pp-collisions leading to subsequent.

A gas cloud near a supernova remnant (SNR) provides a target for pp-collisions leading to subsequent.

Gravitational Lensing of Supernova Neutrinos

The black hole at the center of the galaxy is a powerful lens for supernova neutrinos. In the very special circumstance of a supernova near the extended line of sight from Earth to the galactic center, lensing could dramatically enhance the neutrino flux at Earth and stretch the neutrino pulse.

The black hole at the center of the galaxy is a powerful lens for supernova neutrinos.