Glitches in the X-Ray Pulsar 1e 2259+586

Abstract

Starquakes are considered for fast-rotating magnetic white dwarfs. The X-ray pulsar 1E 2259 + 586 may be such a white dwarf. It is shown that in this case starquakes may be responsible for the decrease of the mean spin-down rate which was observed for 1E 2259 + 586 between 1987 and 1990. The required mass of the white dwarf which is identified with 1E 2259 + 586 is $\sim 1.4-1.5M_{\odot }$, making this X-ray pulsar the most massive white dwarf known.

5 pages of Tex, accepted for publication in ApJ, WIS-93/77/Aug-PH

Cited by in corpus (10)

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• Do magnetars glitch? : Timing irregularities in anomalous X-ray pulsars
• Suzaku Studies of the Supernova Remnant CTB~109 Hosting the Magnetar 1E~2259+586
• SGR 0418+5729, Swift J1822.3-1606, and 1E 2259+586 as massive fast rotating highly magnetized white dwarfs
• High-energy emission of fast rotating white dwarfs
• Soft gamma-ray repeaters and anomalous X-ray pulsars as highly magnetized white dwarfs
• Thermal X-ray emission from massive, fast rotating, highly magnetized white dwarfs
• A magnetic white-dwarf accretion model for the anomalous X-ray pulsar 4U 0142+61