IBIS / ISGRI震源定位精度
The IBIS / ISGRI Source Location Accuracy
摘要：
我们在这里提出的结果的源定位精度的INTEGRAL IBIS/ISGRI编码掩模望远镜，根据10年的INTEGRAL数据和最近的发展，在数据分析程序。数据是通过新的离线科学分析管道（OSA 10.0）进行选择和处理的，该管道受益于最准确的背景校正，最有效的编码噪声清理和天空重建算法。我们从源信噪比获得了用于评估点源定位误差的更新参数。这些结果与以前的估计和理论预期进行了比较。此外，由于新的拟合过程，对于信噪比为10的源，在90%置信水平下的典型误差现在估计为1.5弧分。展望未来的分析点扩散函数拟合程序和剩余偏差的评估。描述源定位精度的新的统一参数将在不久的将来使用整个INTEGRAL数据库、新的拟合技术和偏差校正得出，这些参数将包括在OSA的未来版本中。
英文摘要：
We present here results on the source location accuracy of the INTEGRAL IBIS/ISGRI coded mask telescope, based on ten years of INTEGRAL data and on recent developments in the data analysis procedures. Data were selected and processed with the new Off-line Scientific Analysis pipeline (OSA10.0) that benefits from the most accurate background corrections, the most performing coding noise cleaning and sky reconstruction algorithms available. We obtained updated parameters for the evaluation of the point source location error from the source signal to noise ratio. These results are compared to previous estimates and to theoretical expectations. Also thanks to a new fitting procedure the typical error at 90% confidence level for a source at a signal to noise of 10 is now estimated to be 1.5 arcmin. Prospects for future analysis on the Point Spread Function fitting procedure and on the evaluation of residual biases are also presented. The new consolidated parameters describing the source location accuracy that will be derived in the near future using the whole INTEGRAL database, the new fitting technique and the bias correction, will be included in future versions of OSA.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
