论文标题
快速的超深调查（FUDS）：观察策略，校准和数据减少
The FAST Ultra-Deep Survey (FUDS): observational strategy, calibration and data reduction
论文作者
论文摘要
快速的超深调查（FUDS）是一项盲目调查，旨在直接检测到红移$ z <0.42 $的星系中的HI。该调查使用五百米孔镜球形望远镜（快速）上的多光束接收器来映射六个区域，每个区域的大小为0.72度$^2 $以高灵敏度（$ \ sim50μ$ jy）和高频分辨率（23 kHz）。该调查将对星系的演变及其HI内容进行研究，最终样本量为$ \ sim 1000 $。我们介绍了科学目标，观察策略，快速站点对射频干扰（RFI）的影响，我们的缓解策略以及用于初始数据的校准，减少数据和成像的方法。在初步分析中检测到了大约128个HI星系，第一场FIDS0的观测和减少。在本文中给出了示例光谱，包括与重叠的Arecibo Ultra-Deep调查（AUDS）中的数据进行比较。
The FAST Ultra-Deep Survey (FUDS) is a blind survey that aims for the direct detection of HI in galaxies at redshifts $z<0.42$. The survey uses the multibeam receiver on the Five Hundred Meter Aperture Spherical Telescope (FAST) to map six regions, each of size 0.72 deg$^2$ at high sensitivity ($\sim 50 μ$Jy) and high frequency resolution (23 kHz). The survey will enable studies of the evolution of galaxies and their HI content with an eventual sample size of $\sim 1000$. We present the science goals, observing strategy, the effects of radio frequency interference (RFI) at the FAST site, our mitigation strategies and the methods for calibration, data reduction and imaging as applied to initial data. The observations and reductions for the first field, FUDS0, are completed, with around 128 HI galaxies detected in a preliminary analysis. Example spectra are given in this paper, including a comparison with data from the overlapping GAL2577 field of Arecibo Ultra-Deep Survey (AUDS).
