Anomalous X-ray pulsar

Template:Short description Template:More footnotes needed Anomalous X-ray pulsars (AXPs) are an observational manifestation of magnetars—young, isolated, highly magnetized neutron stars. These energetic X-ray pulsars are characterized by slow rotation periods of ~2–12 seconds and large magnetic fields of ~10¹³–10¹⁵ gauss (1 to 100 gigateslas). Template:As of, there were 12 confirmed and 2 candidate AXPs known.<ref>SGR/AXP Online Catalog (An online catalog of SGR/AXP properties maintained by the pulsar group at McGill University)</ref> The identification of AXPs with magnetars was motivated by their similarity to soft gamma repeaters.

The AXP candidates and their estimated rotation period in seconds, Template:As of, were:
AXP 1E 2259+586	6.98
AXP 1E 1048-59	6.45
AXP 4U 0142+61	8.69
AXP 1RXS 1708-40	11.0
AXP 1E 1841-045	11.8
AXP AXJ1844-0258	6.97
AXP CXJ0110-7211	5.44
The second, fourth, and last names have been abbreviated.

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