Kes 75中分裂型脉冲星PSR J1846-0258的高能特征
High-energy characteristics of the schizophrenic pulsar PSR J1846-0258 in Kes 75
摘要：
PSR J1846-0258是一颗位于超新星Kes 75中心的脉冲星。它是所有已知脉冲星中最年轻的（约723岁），自2000年发现以来，它的速度非常可预测地减慢。直到2006年6月7日，非常稳定的行为已经显示在时间和光谱域与脉冲发射检测的INTEGRAL IBIS ISGRI和RXTE HEXTE高达~150千电子伏。然后，在2006年6月7日至12日钱德拉对Kes 75的观测中发现了脉冲星的戏剧性增亮。这一辐射事件持续了约55天，伴随着一个巨大的定时故障，在目前的工作中首次报道。此外，还发现了几个短的类磁星爆发。在这项工作中，不仅时间平均爆发前的X射线/软伽玛射线的特征进行了详细的讨论，但也解决了在爆发过程中的光谱演化及其弛豫阶段使用RXTE PCA和HEXTE和INTEGRAL IBIS ISGRI数据。
英文摘要：
PSR J1846-0258 is a radio-quiet rotation-powered pulsar at the center of Supernova remnant Kes 75. It is the youngest pulsar (~723 year) of all known pulsars and slows down very predictably since its discovery in 2000. Till June 7, 2006 very stable behavior has been displayed both in the temporal and spectral domains with pulsed emission detectable by INTEGRAL IBIS ISGRI and RXTE HEXTE up to ~150 keV. Then, a dramatic brightening was detected of the pulsar during June 7-12, 2006 Chandra observations of Kes 75. This radiative event, lasting for ~55 days, was accompanied by a huge timing glitch, reported on for the first in present work. Moreover, several short magnetar-like bursts were discovered. In this work not only the time-averaged pre-outburst X-ray/soft gamma-ray characteristics are discussed in detail, but also the spectral evolution during the outburst and its relaxation phase are addressed using RXTE PCA and HEXTE and INTEGRAL IBIS ISGRI data.
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