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Possible Evolution of the Pulsar Braking Index from Larger than Three to About One
Tong,H.1,2; Kou,F. F.2
Source PublicationThe Astrophysical Journal
Contribution Rank2

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.

KeywordPulsars: General Pulsars: Individual (Psr J1640-4631) Stars: Neutron
Indexed BySCI
WOS IDWOS:000397497300004
PublisherThe American Astronomical Society
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.School of Physics and Electronic Engineering, Guangzhou University, 510006 Guangzhou, China; htong_2005@163.com
2.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, China
First Author AffilicationXinjiang Astronomical Observatory, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Tong,H.,Kou,F. F.. Possible Evolution of the Pulsar Braking Index from Larger than Three to About One[J]. The Astrophysical Journal,2017,837(2):117.
APA Tong,H.,&Kou,F. F..(2017).Possible Evolution of the Pulsar Braking Index from Larger than Three to About One.The Astrophysical Journal,837(2),117.
MLA Tong,H.,et al."Possible Evolution of the Pulsar Braking Index from Larger than Three to About One".The Astrophysical Journal 837.2(2017):117.
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