The decay in the orbit of a binary of these stars provides indirect evidence for gravitational radiation; one of those two stars emits highly periodic radiation, making it a pulsar.
Quakes in the crusts of these stars may be the source of gamma-ray bursts from soft gamma repeaters, a subclass of these stars which may have tremendous magnetic fields, making them magnetars. Above approximately two solar masses, these stars may turn into strange stars. The core of the Crab Nebula, which formed from SN 1054, is one of these stars. The decay in the orbit of a binary of these stars provides indirect evidence for gravitational radiation; one of those two stars emits highly periodic radiation, making it a pulsar. For 10 points, name these very dense stars which are named for the uncharged subatomic particles which compose their cores.
Quakes in the crusts of these stars may be the source of gamma-ray bursts from soft gamma repeaters, a subclass of these stars which may have tremendous magnetic fields, making them magnetars.
neutron stars [accept pulsars until it is read; accept magnetars until it is read; accept soft gamma repeaters until it is read] &lt;AD/AS&gt;