On November 28, 1967, Jocelyn Bell Burnell and Anthony Hewish discovered the first Pulsar, a fast rotating neutron star that emits a beam of electromagnetic radiation. The radiation of a pulsar can only be observed when the beam of emission is pointing toward the Earth, much the way a lighthouse can only be seen when the light is pointed in the direction of an observer, and is responsible for the pulsed appearance of emission.
A pulsar is a highly magnetized, rotating neutron star that emits a beam of electromagnetic radiation. This radiation can only be observed when the beam of emission is pointing towards the Earth, much the way a lighthouse can only be seen when the light is pointed in the direction of an observer, and is responsible for the pulsed appearance of emission.
D. Malyshev, I. Cholis, и J. Gelfand. (2009)cite arxiv:0903.1310
Comment: 23 pages, 15 figures, 1 table; v2: minor corrections, references
added; v3: 20 pages, 10 figures, 1 table, major changes in presentation, main
conclusions unchanged; v4: minor corrections.