An Astronomical (Anti-)Glitch

An Astronomical (Anti-)Glitch

The authors of this article observe a sudden slowing in the rotation rate of a known magnetar. Although hundreds of glitches (a sudden increase in rotation rate) have been observed in radio pulsars and magnetars, this is the first direct evidence for an anti-glitch.

A Pulsar Alone

A Pulsar Alone

The closest known isolated radio pulsar also has one of the slowest rotation rates — far below what should be observable for a pulsar. This paper discusses X-ray and optical observations of this puzzling object.