Originally hypothesized to be rapidly-spinning neturon stars, for 10 points, name these ultra-dense spinning balls which regularly emit radiation as they spin.
The lighthouse model describes the misalignment of the axes of these entities. One of these objects forms the center of the Crab Nebula and serves as the source of its synchotron radiation. A subclass of these without a companion star and powered by magnetic field decay is called the magnetar. These objects discovered by Anthony Hewish and his student Jocelyn Bell are a subset of neutron stars and were originally dubbed "Little Green Men." Originally hypothesized to be rapidly-spinning neturon stars, for 10 points, name these ultra-dense spinning balls which regularly emit radiation as they spin.
The lighthouse model describes the misalignment of the axes of these entities.
{pulsars} [prompt on {neutron} star]