NAOC Open IR
Braking PSR J1734–3333 with a possible fall-back disk
Liu Xiongwei1; Xu Renxin2; Qiao Guojun2; Han Jinlin3; Tong Hao4
2014
Source PublicationResearch in Astronomy and Astrophysics
ISSN1674-4527
Volume14Issue:1Pages:85
AbstractThe very small braking index of PSR J1734-3333, n = 0.9 +/- 0.2, challenges the current theories of braking mechanisms in pulsars. We present a possible interpretation that this pulsar is surrounded by a fall-back disk and braked by it. A modified braking torque is proposed based on the competition between the magnetic energy density of the pulsar and the kinetic energy density of the fall-back disk. With this torque, a self-similar disk can fit all the observed parameters of PSR J1734-3333 with natural initial values of parameters. In this regime, the star will evolve to the region having anomalous X-ray pulsars and soft gamma repeaters in the P-(P) over dot diagram in about 20 000 years and stay there for a very long time. The mass of the disk around PSR J1734-3333 in our model is about 10M(circle plus), similar to the observed mass of the disk around AXP 4U 0142+61.
Language英语
Funding Project[National Basic Research Program of China (973 Program)] ; [National Natural Science Foundation of China] ; [XTP project]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/51288
Collection中国科学院国家天文台
Affiliation1.西华师范大学
2.北京大学
3.中国科学院国家天文台
4.中国科学院新疆天文台
Recommended Citation
GB/T 7714
Liu Xiongwei,Xu Renxin,Qiao Guojun,等. Braking PSR J1734–3333 with a possible fall-back disk[J]. Research in Astronomy and Astrophysics,2014,14(1):85.
APA Liu Xiongwei,Xu Renxin,Qiao Guojun,Han Jinlin,&Tong Hao.(2014).Braking PSR J1734–3333 with a possible fall-back disk.Research in Astronomy and Astrophysics,14(1),85.
MLA Liu Xiongwei,et al."Braking PSR J1734–3333 with a possible fall-back disk".Research in Astronomy and Astrophysics 14.1(2014):85.
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