{"title":"塞弗特核中的恒星形成环面","authors":"Roberto Terlevich","doi":"10.1016/0083-6656(95)00094-1","DOIUrl":null,"url":null,"abstract":"<div><p>In the simple unified model for Seyfert nuclei, type 2 Seyferts are those where direct view of the central source is blocked by a dusty molecular torus. This simple model is able to explain many observed properties of Seyfert nuclei but fails to explain the UV excess observed in the continuum of many type 2 Seyferts, the relatively low level of continuum polarization, and the undiluted near IR stellar absorptions. The simplest solution is to postulate a continuum source on top of the scattered nuclear one. I discuss here some of the implications of having young stars in the torus providing the additional continuum.</p></div>","PeriodicalId":101275,"journal":{"name":"Vistas in Astronomy","volume":"40 1","pages":"Pages 17-22"},"PeriodicalIF":0.0000,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0083-6656(95)00094-1","citationCount":"3","resultStr":"{\"title\":\"Star-forming tori in Seyfert nuclei\",\"authors\":\"Roberto Terlevich\",\"doi\":\"10.1016/0083-6656(95)00094-1\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>In the simple unified model for Seyfert nuclei, type 2 Seyferts are those where direct view of the central source is blocked by a dusty molecular torus. This simple model is able to explain many observed properties of Seyfert nuclei but fails to explain the UV excess observed in the continuum of many type 2 Seyferts, the relatively low level of continuum polarization, and the undiluted near IR stellar absorptions. The simplest solution is to postulate a continuum source on top of the scattered nuclear one. I discuss here some of the implications of having young stars in the torus providing the additional continuum.</p></div>\",\"PeriodicalId\":101275,\"journal\":{\"name\":\"Vistas in Astronomy\",\"volume\":\"40 1\",\"pages\":\"Pages 17-22\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1996-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0083-6656(95)00094-1\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Vistas in Astronomy\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0083665695000941\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Vistas in Astronomy","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0083665695000941","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
In the simple unified model for Seyfert nuclei, type 2 Seyferts are those where direct view of the central source is blocked by a dusty molecular torus. This simple model is able to explain many observed properties of Seyfert nuclei but fails to explain the UV excess observed in the continuum of many type 2 Seyferts, the relatively low level of continuum polarization, and the undiluted near IR stellar absorptions. The simplest solution is to postulate a continuum source on top of the scattered nuclear one. I discuss here some of the implications of having young stars in the torus providing the additional continuum.
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