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Author Tong, H. ♦ Kou, F. F.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword ASTROPHYSICS, COSMOLOGY AND ASTRONOMY ♦ CRABS ♦ DIPOLES ♦ EVOLUTION ♦ INCLINATION ♦ PULSARS ♦ ROTATION ♦ SPIN ♦ WIND
Abstract The coupled evolution of pulsar rotation and inclination angle in the wind braking model is calculated. The oblique pulsar tends to align. The pulsar alignment affects its spin-down behavior. As a pulsar evolves from the magneto-dipole radiation dominated case to the particle wind dominated case, the braking index first increases and then decreases. In the early time, the braking index may be larger than three. During the following long time, the braking index is always smaller than three. The minimum braking index is about one. This can explain the existence of a high braking index larger than three and a low braking index simultaneously. The pulsar braking index is expected to evolve from larger than three to about one. The general trend is for the pulsar braking index to evolve from the Crab-like case to the Vela-like case.
ISSN 0004637X
Educational Use Research
Learning Resource Type Article
Publisher Date 2017-03-10
Publisher Place United States
Journal Astrophysical Journal
Volume Number 837
Issue Number 2


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