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Bright source X-ray spectroscopy with XMM-Newton: A modified EPIC-pn Timing mode

机译:XMM-Newton的X射线源X射线光谱:改进的EPIC-pn定时模式

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The large collecting area of XMM-Newton combined with the good energy resolution of the EPIC-pn CCDs allows the study, with unprecedented detail, of accretion processes onto neutron stars and black holes. The EPIC-pn CCD camera in Timing mode, in which data are read out continuously, is among the fastest X-ray CCD camera available; however, telemetry constraints do not allow full use of these capabilities for many sources because currently randomly distributed data gaps are introduced by the on-board data handling electronics. As an alternative, we have proposed to implement a modification of the Timing mode in which data from soft X-ray events are not transmitted to Earth. Here we discuss the properties of this modified Timing mode, which will first be used in simultaneous XMM-Newton, RXTE, and INTEGRAL observations of the Galactic black hole binary Cygnus X-1 in autumn 2004. We discuss the predicted performance of this new mode based upon laboratory measurements, Monte Carlo simulations, and data from existing Timing mode observations.
机译:XMM-Newton的大收集面积与EPIC-pn CCD的良好能量分辨率相结合,使我们能够以前所未有的细节研究中子星和黑洞的吸积过程。定时模式下的EPIC-pn CCD摄像机可连续读取数据,是目前最快的X射线CCD摄像机之一。但是,遥测约束不允许对许多源充分利用这些功能,因为当前随机分布的数据间隙是由车载数据处理电子设备引入的。作为替代方案,我们建议对计时模式进行修改,在这种模式下,来自软X射线事件的数据不会传输到地球。在这里,我们讨论这种修改的计时模式的特性,该模式将首先在2004年秋季用于银河黑洞二进制天鹅座X-1的同时XMM-Newton,RXTE和INTEGRAL观测中。我们讨论了这种新模式的预测性能基于实验室测量,蒙特卡洛模拟以及现有计时模式观测数据。

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