RX J185635-3754, the closest one of these ever seen, is the result of an explosion 1 million years ago.
RX J185635-3754, the closest one of these ever seen, is the result of an explosion 1 million years ago. Kept under two solar masses by the Oppenheimer- Volkoff limit, it is prevented from complete collapse by degeneracy pressure. Consisting of a super-fluid interior surrounded by a 1-kilometer think crust of iron, the typical diameter is around 30 kilometers. Resulting from a Type II supernova, the significant change occurs when the core of the star reaches a density of 1017 kg/m3 at which point protons and electrons combine. For 10 points, name this extremely small, super-dense object named for a type of subatomic particle.
RX J185635-3754, the closest one of these ever seen, is the result of an explosion 1 million years ago.
{Neutron} Star