PSR~J1119$-$6127, a high-magnetic field pulsar detected from radio to high-energy wavelengths, underwent a magnetar-like outburst beginning on July 27, 2016. In this paper, we study the post-outburst multi-wavelength properties of this pulsar from the radio to GeV bands and discuss its similarity with the outburst of the magnetar XTE~J1810$-$197. In phase-resolved spectral analysis of 0.5--10\,keV X-ray data collected in August 2016, the on-pulse and off-pulse spectra are both characterized by two blackbody components and also require a power-law component similar to the hard X-ray spectra of magnetars. This power-law component is no longer distinguishable in data from December, 2016. We likewise find that there was no substantial shift between the radio and X-ray pulse peaks after the 2016 X-ray outburst. The gamma-ray pulsation after the X-ray outburst is confirmed with data taken after 2016 December and the pulse structure and phase difference between the gamma-ray and radio peaks ($\sim$0.4 cycle) are also consistent with those before the X-ray outburst. These multi-wavelength observations suggest that the re-configuration of the global magnetosphere after 2016 magnetar-like outburst at most continued for about six months. We discuss the evolution of the X-ray emission after the 2016 outburst with the untwisting magnetosphere model.

中文翻译：

---

2016 年爆发后 PSR J1119-6127 的多波长研究

PSR~J1119$-$6127 是一颗从射电到高能波长探测到的高磁场脉冲星，从 2016 年 7 月 27 日开始经历了类似磁星的爆发。在本文中，我们研究了爆发后的多波长特性这个脉冲星从无线电到 GeV 波段，并讨论它与磁星 XTE~J1810$-$197 爆发的相似性。在对 2016 年 8 月收集的 0.5--10\,keV X 射线数据进行相位分辨光谱分析时，开脉冲和关脉冲光谱均以两个黑体分量为特征，并且还需要一个幂律分量，类似于磁星的硬 X 射线光谱。这个幂律分量在 2016 年 12 月的数据中不再可区分。我们同样发现，在 2016 年 X 射线爆发后，射电和 X 射线脉冲峰值之间没有实质性偏移。X射线爆发后的伽马射线脉动得到了2016年12月之后的数据的证实，伽马射线和射电波峰之间的脉冲结构和相位差（$\sim$0.4周期）也与X-射线爆发之前的一致。射线爆发。这些多波长观测表明，2016 年类磁星爆发后全球磁层的重新配置最多持续了大约 6 个月。我们使用解旋磁层模型讨论了 2016 年爆发后 X 射线发射的演变。这些多波长观测表明，2016 年类磁星爆发后全球磁层的重新配置最多持续了大约六个月。我们使用解旋磁层模型讨论了 2016 年爆发后 X 射线发射的演变。这些多波长观测表明，2016 年类磁星爆发后全球磁层的重新配置最多持续了大约 6 个月。我们使用解旋磁层模型讨论了 2016 年爆发后 X 射线发射的演变。