MMT和麦哲伦红外光谱仪的数据处理流水线
Data Reduction Pipeline for the MMT and Magellan Infrared Spectrograph
摘要：
我们描述了新的光谱数据简化流水线的多目标MMT/麦哲伦红外光谱仪。pipeline在idl中作为一个独立的包实现，并且在稳定和开发版本中公开可用。我们描述了新的算法天空减法和大地吸收校正。我们证明，我们的天空减法技术达到了泊松极限的光子统计。我们的大地校正使用混合方法，首先计算从观测到的恒星光谱的校正函数，然后差分校正它使用网格的大气传输模型的目标气团值。流水线为实时减少提供了足够的性能水平，从而在观测期间实现了数据质量控制。我们减少了一个示例数据集，以证明高数据减少质量。
英文摘要：
We describe the new spectroscopic data reduction pipeline for the multi-object MMT/Magellan Infrared Spectrograph. The pipeline is implemented in idl as a stand-alone package and is publicly available in both stable and development versions. We describe novel algorithms for sky subtraction and correction for telluric absorption. We demonstrate that our sky subtraction technique reaches the Poisson limit set by the photon statistics. Our telluric correction uses a hybrid approach by first computing a correction function from an observed stellar spectrum, and then differentially correcting it using a grid of atmosphere transmission models for the target airmass value. The pipeline provides a sufficient level of performance for real time reduction and thus enables data quality control during observations. We reduce an example dataset to demonstrate the high data reduction quality.
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