Supernova Plasma Effects

Simulations based on extragalactic supernova (SN) observations predict during active epochs several SN explosions (SNe) can occur within the Milky Way galaxy every century. A review of observational data collected on the Circumgalactic Medium (CGM) provides support for the existence of a class of SN originating as runaway OB stars or halo stars exploding in a rarified environment outside of the Interstellar Medium (ISM). Unlike most SN which explode within the ISM where the ambient gas generally absorbs blast waves within a million years, the blast waves from this class of SN propagate in a rarified medium and can remain in a high velocity free expansion phase for more extended periods. These high velocity blast waves are analyzed with a focus on their potential to influence celestial observations. The SN blast wave physical properties, such as the relative permittivity and permeability, are investigated and found to exhibit values outside the traditional bounds with ranges capable of altering the propagation of light. These plasma properties, when incorporated into dynamic SN blast wave models, are shown to induce reflections and redshifts to propagating light fields which can appear to observers as common cosmological phenomena such as elliptical galaxies, gravitational lenses and the Hubble constant.