论文标题
在PSR J1124--5916中发现国家过渡行为
Discovery of state transition behaviors in PSR J1124--5916
论文作者
论文摘要
随着{\ sl fermi} -lat的十二年观察结果，我们发现了PSR J1124---5916的两对旋转状态过渡，使其成为第二个年轻的Pulsar检测到的行为。 PSR J1124--5916主要根据其旋转速率演变，正常旋转状态和低旋转状态显示了两个状态。在观察时间的约80％中，脉冲星处于正常的旋转状态，其中旋转速率线性降低，并给出制动指数$ 1.98 \ pm0.04 $。向低旋转状态的两个过渡分别在MJD 55183--55803和MJD 56114---56398中，分数幅度均为$ \ sim0.4 \％$。检测到两个旋转状态的$γ$ - 射线曲线之间没有显着差异，这与PSR B0540-69相似，这是另一个检测到状态过渡的年轻脉冲星。
With the twelve-year long observations by {\sl Fermi}-LAT, we discover two pairs of spin-down state transitions of PSR J1124--5916, making it the second young pulsar detected to have such behaviors. PSR J1124--5916 shows mainly two states according to its spin-down rate evolution, the normal spin-down state and the low spin-down state. In about 80\% of the observation time, the pulsar is in the normal spin-down state, in which the spin-down rate decreases linearly and gives a braking index of $1.98\pm0.04$. The two transitions to the low spin-down state are in MJD 55183--55803 and MJD 56114--56398 respectively, with fractional amplitudes both $\sim0.4\%$. No significant difference between the $γ$-ray profiles of the two spin-down states is detected, which is similar to PSR B0540-69, the other young pulsar with state transition detected.
