{"title":"The Leiden/Dwingeloo survey of galactic HI at δ≥−30°","authors":"D. Hartmann, W. B. Burton","doi":"10.1063/1.43986","DOIUrl":null,"url":null,"abstract":"The Leiden/Dwingeloo survey of galactic HI, which has occupied the 25‐meter telescope of the Netherlands Foundation for Research in Astronomy full‐time during the past 4 years, is now essentially complete. The new material provides 21‐cm coverage of the entire sky at δ≥−30° on a 0°.5 grid, over a velocity range of 1000 km s−1 at 1 km s−1 resolution. The Leiden/Dwingeloo data improve the 1974 (Heiles & Habing) Berkeley material by an order of magnitude in velocity coverage and in sensitivity; they improve the 1992 (Stark et al.) Bell Labs survey by about as much in spatial and kinematic coverage; and they extend the latitude coverage of the 1985 (Burton) Leiden/Green Bank survey of the northern Milky Way.","PeriodicalId":310353,"journal":{"name":"Back to the Galaxy","volume":"36 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1992-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Back to the Galaxy","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1063/1.43986","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
The Leiden/Dwingeloo survey of galactic HI, which has occupied the 25‐meter telescope of the Netherlands Foundation for Research in Astronomy full‐time during the past 4 years, is now essentially complete. The new material provides 21‐cm coverage of the entire sky at δ≥−30° on a 0°.5 grid, over a velocity range of 1000 km s−1 at 1 km s−1 resolution. The Leiden/Dwingeloo data improve the 1974 (Heiles & Habing) Berkeley material by an order of magnitude in velocity coverage and in sensitivity; they improve the 1992 (Stark et al.) Bell Labs survey by about as much in spatial and kinematic coverage; and they extend the latitude coverage of the 1985 (Burton) Leiden/Green Bank survey of the northern Milky Way.
在过去的4年里，荷兰天文学研究基金会的25米望远镜一直被Leiden/Dwingeloo对银河系HI的调查所占据，现在基本上完成了。新材料在δ≥- 30°和0°上提供了整个天空21厘米的覆盖范围。5网格，速度范围为1000 km s−1，分辨率为1 km s−1。Leiden/Dwingeloo的数据在速度覆盖和灵敏度上提高了1974年(Heiles & Habing)伯克利材料的一个数量级;他们改进了1992年(斯塔克等人)贝尔实验室的调查，在空间和运动覆盖范围上大约相同;他们扩展了1985年莱顿/格林班克对北银河系的纬度覆盖范围。
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