{"title":"ngc5253中的超星云和原球状星团","authors":"J. Turner","doi":"10.1017/S1539299600013204","DOIUrl":null,"url":null,"abstract":". A compact and bright radio and infrared source within the starburst center of the dwarf galaxy NGC 5253 appears to be an extremely large compact HII region. The high density (n e ~ few xlO 4 cm -3 ) and size (~l-2 pc) of the nebula require the ionization equivalent of at least 4000 07 stars. We suggest that this optically obscured nebula is a forming super star cluster, or protoglobular cluster, with an age of a few hundred thousand years.","PeriodicalId":422890,"journal":{"name":"Highlights of Astronomy","volume":"52 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The supernebula and protoglobular cluster in NGC 5253\",\"authors\":\"J. Turner\",\"doi\":\"10.1017/S1539299600013204\",\"DOIUrl\":null,\"url\":null,\"abstract\":\". A compact and bright radio and infrared source within the starburst center of the dwarf galaxy NGC 5253 appears to be an extremely large compact HII region. The high density (n e ~ few xlO 4 cm -3 ) and size (~l-2 pc) of the nebula require the ionization equivalent of at least 4000 07 stars. We suggest that this optically obscured nebula is a forming super star cluster, or protoglobular cluster, with an age of a few hundred thousand years.\",\"PeriodicalId\":422890,\"journal\":{\"name\":\"Highlights of Astronomy\",\"volume\":\"52 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1900-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Highlights of Astronomy\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1017/S1539299600013204\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Highlights of Astronomy","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1017/S1539299600013204","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
． 在矮星系NGC 5253的星暴中心，一个紧凑而明亮的射电和红外源看起来是一个非常大的紧凑的HII区域。该星云的高密度(n ~ xlO 4 cm -3)和大小(~l-2 pc)需要至少4000颗07恒星的电离量。我们认为这个被光学遮挡的星云是一个形成中的超级星团，或原球状星团，年龄为几十万年。
The supernebula and protoglobular cluster in NGC 5253
. A compact and bright radio and infrared source within the starburst center of the dwarf galaxy NGC 5253 appears to be an extremely large compact HII region. The high density (n e ~ few xlO 4 cm -3 ) and size (~l-2 pc) of the nebula require the ionization equivalent of at least 4000 07 stars. We suggest that this optically obscured nebula is a forming super star cluster, or protoglobular cluster, with an age of a few hundred thousand years.
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