1570007

The accreting millisecond X-ray pulsar SWIFT J1756.9-2508 is currently in outburst and it has been detected by both INTEGRAL and Swift (ATel 11497). Our group just obtained a 50 ks-long XMM DDT observation. We are thus requesting a dedicated short INTEGRAL simultaneous observation to have the possibility of performing a broad-band spectroscopy and studying the profile at high energies with both JEM-X and IBIS/ISGRI. This is a rare opportunity because the source showed so far only 2 outbursts in the past >10 years. [truncated! Please see actual data for full text]

正在爆发中的吸积毫秒X射线脉冲星SWIFT J1756.9-2508已由国际伽马射线天体物理实验室（INTEGRAL）与雨燕卫星（Swift）共同探测到（相关信息见于天文学电报ATel 11497）。我们团队新近获取了一段时长50千秒的XMM DDT观测数据。为此，我们申请开展一次专属的INTEGRAL同步短时观测，以便结合JEM-X与IBIS/ISGRI探测器开展宽波段光谱分析，并研究该源的高能能谱轮廓。这是一次极为难得的观测机遇：该天体在过去十余年间仅出现过两次爆发。[内容已截断，请查阅完整原始数据以获取全部文本]