标题： 揭示INTEGRAL的软伽马射线重复源 显示英文标题

标题： Unveiling Soft Gamma-Ray Repeaters with INTEGRAL

摘要： 感谢INTEGRAL对银河系平面的长时间曝光，首次在硬X/软伽马射线波段对两个最明亮的软伽马射线重复暴SGR 1806-20和SGR 1900+14进行了详细监测和研究。 这产生了大量新的科学结果，我们将在此进行综述。 由于SGR 1806-20在过去的两年中特别活跃，已通过INTEGRAL观测到300多次短爆发，并且在15-200 keV范围内以前所未有的灵敏度研究了它们的特性。 在爆发中发现了硬度-强度反相关性，并确定了爆发的整体数量-强度分布。 此外，在2004年10月5日观察到了一个特别活跃的状态，在此期间约10分钟内发射了约100次爆发，表明源的活动迅速增加。 最终导致了2004年12月27日的巨耀斑，对此可能检测到了软伽马射线（>80 keV）的早期余辉。 深入的观测使我们能够发现来自1806-20和1900+14的持续硬X射线（20-150 keV）辐射，后者处于平静状态，并直接比较了所有用INTEGRAL探测到的磁星（两个SGR和三个异常X射线脉冲星）的光谱特性。 显示英文摘要

摘要： Thanks to INTEGRAL's long exposures of the Galactic Plane, the two brightest Soft Gamma-Ray Repeaters, SGR 1806-20 and SGR 1900+14, have been monitored and studied in detail for the first time at hard-X/soft gamma rays. This has produced a wealth of new scientific results, which we will review here. Since SGR 1806-20 was particularly active during the last two years, more than 300 short bursts have been observed with INTEGRAL. and their characteristics have been studied with unprecedented sensitivity in the 15-200 keV range. A hardness-intensity anticorrelation within the bursts has been discovered and the overall Number-Intensity distribution of the bursts has been determined. In addition, a particularly active state, during which ~100 bursts were emitted in ~10 minutes, has been observed on October 5 2004, indicating that the source activity was rapidly increasing. This eventually led to the Giant Flare of December 27th 2004, for which a possible soft gamma-ray (>80 keV) early afterglow has been detected. The deep observations allowed us to discover the persistent emission in hard X-rays (20-150 keV) from 1806-20 and 1900+14, the latter being in a quiescent state, and to directly compare the spectral characteristics of all Magnetars (two SGRs and three Anomalous X-ray Pulsars) detected with INTEGRAL.