Hyper：混合Photometry和浸提常规
Hyper: Hybrid Photometry and Extraction Routine
摘要：
我们提出了一种新的混合光度测定和提取程序：超。它的设计是为了进行紧凑的光源测光，允许在多波长调查中改变空间分辨率和灵敏度。Hyper将多高斯拟合与孔径测光相结合，可在背景可变的区域和拥挤的区域提供可靠的测光。使用各种阶次的多项式拟合对每个源局部地评估和去除背景。源去混合是通过主源及其伴随源的同时多高斯拟合，然后减去伴随源来完成的。Hyper还允许通过设置独立于地图分辨率的固定孔径大小来同时进行多波长测光，并同时评估天空同一区域内多个波长的源通量。这一新的代码最初是为复杂领域的精确孔径测光而设计的，例如通过Herschel银河平面红外巡天（Hi-GAL）在远红外（FIR）中观察到的银河平面。Hyper已经在模拟和真实的Herschel场上进行了测试，以量化源识别和测光的质量。该代码是高度模块化和完全参数化的，因此它可以很容易地适应不同的实验。超测光与Bolocam银河平面调查（BGPS）中编目源的比较，与加州理工学院亚毫米天文台进行的银河平面1.1毫米调查，证明了超在不同数据集上的多功能性。它的内存使用速度快，重量轻，科学界可以免费使用。
英文摘要：
We present a new Hybrid Photometry and Extraction Routine: Hyper. It is designed to do compact source photometry allowing for varying spatial resolution and sensitivity in multi-wavelength surveys. Hyper combines multi-Gaussian fitting with aperture photometry to provide reliable photometry in regions with variable backgrounds and in crowded fields. The background is evaluated and removed locally for each source using polynomial fits of various orders. Source de-blending is done through simultaneous multi-Gaussian fitting of the main source and its companion(s), followed by the subtraction of the companion(s). Hyper allows also simultaneous multi-wavelength photometry by setting a fixed aperture size independent of the map resolution and evaluating the source flux within the same region of the sky at multiple wavelengths at the same time. This new code has been initially designed for precise aperture photometry in complex fields such as the Galactic plane observed in the far infrared (FIR) by the Herschel infrared survey of the Galactic plane (Hi-GAL). Hyper has been tested on both simulated and real Herschel fields to quantify the quality of the source identification and photometry. The code is highly modular and fully parameterisable, therefore it can be easily adapted to different experiments. Comparison of the Hyper photometry with the catalogued sources in the Bolocam Galactic Plane survey (BGPS), the 1.1 mm survey of the Galactic Plane carried out with the Caltech Sub-millimeter observatory, demonstrates the versatility of Hyper on different datasets. It is fast and light in its memory usage, and it is freely available to the scientific community.
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