Effelsberg-Bonn HI调查（EBHIS）
The Effelsberg-Bonn HI Survey (EBHIS)
摘要：
Effelsberg-Bonn HI巡天（EBHIS）包括银河系Dec = -5度以北的全天巡天和红移z ~ 0.07的局部体积。使用最先进的现场可编程门阵列（FPGA）光谱仪，可以用16.384个光谱通道覆盖100 MHz带宽。HI谱的高速存储允许我们最小化由射频干扰（RFI）信号引起的退化。经过广泛的系统评估和验证测试后，EBHIS的定期调查观测于2008/2009年冬季开始。直到今天，我们测量了大约8000平方度，集中在斯隆数字巡天（SDSS）区域和麦哲伦流北部延伸的第一个全天空覆盖范围内。第一次全天空覆盖将于2011年完成。这第一次覆盖范围已经达到了与帕克斯银河系（GASS）和河外巡天（HIPASS）相同的灵敏度水平。EBHIS数据将经过校准、杂散辐射校正，科学界可通过网络界面免费获取。在本文中，我们展示了科学数据的质量，并探讨了这一新的全天空调查的预期收获。
英文摘要：
The Effelsberg-Bonn HI survey (EBHIS) comprises an all-sky survey north of Dec = -5 degrees of the Milky Way and the local volume out to a red-shift of z ~ 0.07. Using state of the art Field Programmable Gate Array (FPGA) spectrometers it is feasible to cover the 100 MHz bandwidth with 16.384 spectral channels. High speed storage of HI spectra allows us to minimize the degradation by Radio Frequency Interference (RFI) signals. Regular EBHIS survey observations started during the winter season 2008/2009 after extensive system evaluation and verification tests. Until today, we surveyed about 8000 square degrees, focusing during the first all-sky coverage of the Sloan-Digital Sky Survey (SDSS) area and the northern extension of the Magellanic stream. The first whole sky coverage will be finished in 2011. Already this first coverage will reach the same sensitivity level as the Parkes Milky Way (GASS) and extragalactic surveys (HIPASS). EBHIS data will be calibrated, stray-radiation corrected and freely accessible for the scientific community via a web-interface. In this paper we demonstrate the scientific data quality and explore the expected harvest of this new all-sky survey.
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。
