THE HELICAL JET OF THE VELA PULSAR
THE HELICAL JET OF THE VELA PULSAR
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DOI：
10.1088/0004-637x/763/2/72
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发表时间：
2013-02-01
影响因子：
4.9
通讯作者：
Levenfish, Kseniya
中科院分区：
文献类型：
--
作者：
Durant, Martin;Kargaltsev, Oleg;Levenfish, Kseniya
在钱德拉x射线天文台1140千米的观测中，我们研究了附近船帆脉冲星星云的迷人动力学。迄今为止最深的图像揭示了2角分长的脉冲星射流的形状、结构和运动。我们发现喷流的形状和动力学与投射在天空上的稳定旋转的螺旋非常一致。我们讨论了我们的结果可能的含义，包括中子星的自由进动和MHD不稳定情景。
We have studied the fascinating dynamics of the nearby Vela pulsar's nebula in a campaign comprising 11 40 ks observations with the Chandra X-Ray Observatory. The deepest images yet revealed the shape, structure, and motion of the 2 arcmin long pulsar jet. We find that the jet's shape and dynamics are remarkably consistent with those of a steadily turning helix projected on the sky. We discuss possible implications of our results, including free precession of the neutron star and MHD instability scenarios.