Three types of systems, illustrated here, may host Type Ia supernovae.
An asteroid or comet too close to a neutron star being shredded. Gamma rays would be produced as the debris hit the star, as seen in this illustration.
In this illustration, one photon (purple) carries a million times the energy of the other. Some theorists predict travel delays for higher-energy photons. However, Fermi data on two photons from […]
Rendition/schematic of a dense magnetar, a neutron star possessing a magnetic field trillions or even quadrillions of times stronger that Earth’s.
Illustration of a gamma-ray burst occurring in a dusty region of intense star formation.