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Title:
Glitches in the X-ray pulsar 1E 2259+586
Authors:
Usov, V. V.
Affiliation:
AA(Weizmann Institute, Rehovot, Israel)
Publication:
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 427, no. 2, p. 984-986 (ApJ Homepage)
Publication Date:
06/1994
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
Periodic Variations, Pulsars, Spin Dynamics, Starquakes, Stellar Rotation, White Dwarf Stars, X Ray Stars, Gamma Rays, Pulsar Magnetospheres, Radiation Sources, Stellar Cores, Stellar Mass, Supernova Remnants
DOI:
10.1086/174205
Bibliographic Code:
1994ApJ...427..984U

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 that was observed for 1E 2259+586 between 1987 and 1990. The required mass of the white dwarf that is identified with 1E 2259+586 is approximately 1.4-1.5 solar mass making this X-ray pulsar the most massive white dwarf known.

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