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首页> 外文期刊>PASJ: Publications of the Astronomical Society of Japan >INTEGRAL and RXTE/ASM Observations on IGRJ17098-3628
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INTEGRAL and RXTE/ASM Observations on IGRJ17098-3628

机译：对IGRJ17098-3628的INTEGRAL和RXTE / ASM观察

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摘要

To further probe the possible nature of the unidentified source IGR J17098-3628, we have carried out a detailed analysis of its long-term time variability, as monitored by Rossi X-ray Timing Explorer/All Sky Monitor (RXTE/ASM), and of its hard X-ray properties, as observed by the International Gamma-Ray Astrophysics Laboratory (INTEGRAL). INTEGRAL has monitored this sky region for years, and significantly detected IGRJ17098-3628 only when the source was in its dubbed active state. In particular, at ≥ 20keV, Imager on Board of the INTEGRAL Satellite/INTEGRAL Soft Gamma-Ray Imager (IBIS/ISGRI) caught an outburst in 2005 March, lasting for ～5 d with a detection significance of 73σ (20-40 keV) and with emission at < 200keV. ASM observations have revealed that the outburst of the soft X-ray lightcurve is similar to that detected by INTEGRAL; however the peak of the soft X-ray lightcurve lags behind, or is preceded by, the hard X-ray (> 20 keV) outburst by ～ 2 d. This resembles the behavior of X-ray novae like XN 1124-683, and hence further suggests a Low-Mass X-ray Binary (LMXB) nature for IGRJ17098-3628. While the quality of the ASM data prevents us from drawing any definite conclusions, these discoveries are important clues that, coupled with future observations, will help us to resolve the nature of IGRJ17098-3628 that is unknown so far.
机译：为了进一步探究IGR J17098-3628来源不明的可能性质，我们对它的长期时间变异性进行了详细分析，并由Rossi X射线定时资源管理器/全天候监视仪（RXTE / ASM）进行了监视，并且由国际伽玛射线天体物理学实验室（INTEGRAL）观察到。 INTEGRAL多年来一直监视着这个天空区域，并且仅在源处于配音的活动状态时，才检测到IGRJ17098-3628。特别是在≥20keV时，INTEGRAL卫星/ INTEGRAL软伽玛射线成像仪（IBIS / ISGRI）上的成像仪在2005年3月爆发，持续约5 d，探测意义为73σ（20-40 keV）。发射<200keV。 ASM的观测表明，软X射线光曲线的爆发与INTEGRAL探测到的相似。但是，软X射线光曲线的峰值落后或先于硬X射线（> 20 keV）爆发〜2 d。这类似于X射线新星（如X​​N 1124-683）的行为，因此进一步暗示了IGRJ17098-3628的低质量X射线二进制（LMXB）性质。尽管ASM数据的质量使我们无法得出任何明确的结论，但这些发现是重要的线索，再加上未来的观察，将有助于我们解决迄今为止未知的IGRJ17098-3628的性质。

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