Details

Autor(en) / Beteiligte

• Tong, Hao

Titel

Pulsar braking： magnetodipole vs. wind

Ist Teil von

• Science China. Physics, mechanics & astronomy, 2016, Vol.59 (1), p.33-44, Article 619501

Ort / Verlag

Beijing: Science China Press

Erscheinungsjahr

2016

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Pulsars are good clocks in the universe. One fundamental question is that why they are good clocks？ This is related to the braking mechanism of pulsars. Nowadays pulsar timing is done with unprecedented accuracy. More pulsars have braking indices measured. The period derivative of intermittent pulsars and magnetars can vary by a factor of several. However, during pulsar studies, the magnetic dipole braking in vacuum is still often assumed. It is shown that the fundamental assumption of magnetic dipole braking （vacuum condition） does not exist and it is not consistent with the observations. The physical torque must consider the presence of the pulsar magnetosphere. Among various efforts, the wind braking model can explain many observations of pulsars and magnetars in a unified way. It is also consistent with the up-to-date observations. It is time for a paradigm shift in pulsar studies： from magnetic dipole braking to wind braking. As one alternative to the magnetospheric model, the fallback disk model is also discussed.