{"title":"星际介质中远红外精细结构线的观测","authors":"D. Watson, J. Storey, C. Townes","doi":"10.1109/ICSWA.1979.9335408","DOIUrl":null,"url":null,"abstract":"Fine structure lines in the far-infrared have many simple properties that make them useful tools for diagnosing astrophysical plasmas. The line ratios are sensitive and accurate probes of density, elemental abundances, and ionization structure; also, line shapes and Doppler shifts have proven handy in studies of gross dynamics of H II regions and galaxies. These lines have several analytical and practical advantages over spectral features in the optical and radio regions for measuring certain parameters of ionized regions.","PeriodicalId":216123,"journal":{"name":"1979 International Conference on Submillimeter Waves and Their Applications","volume":"16 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1979-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Observations of Far-Infrared Fine Structure Lines in the Interstellar Medium\",\"authors\":\"D. Watson, J. Storey, C. Townes\",\"doi\":\"10.1109/ICSWA.1979.9335408\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Fine structure lines in the far-infrared have many simple properties that make them useful tools for diagnosing astrophysical plasmas. The line ratios are sensitive and accurate probes of density, elemental abundances, and ionization structure; also, line shapes and Doppler shifts have proven handy in studies of gross dynamics of H II regions and galaxies. These lines have several analytical and practical advantages over spectral features in the optical and radio regions for measuring certain parameters of ionized regions.\",\"PeriodicalId\":216123,\"journal\":{\"name\":\"1979 International Conference on Submillimeter Waves and Their Applications\",\"volume\":\"16 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1979-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"1979 International Conference on Submillimeter Waves and Their Applications\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICSWA.1979.9335408\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"1979 International Conference on Submillimeter Waves and Their Applications","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICSWA.1979.9335408","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Observations of Far-Infrared Fine Structure Lines in the Interstellar Medium
Fine structure lines in the far-infrared have many simple properties that make them useful tools for diagnosing astrophysical plasmas. The line ratios are sensitive and accurate probes of density, elemental abundances, and ionization structure; also, line shapes and Doppler shifts have proven handy in studies of gross dynamics of H II regions and galaxies. These lines have several analytical and practical advantages over spectral features in the optical and radio regions for measuring certain parameters of ionized regions.