{"title":"白矮星的光度函数和H-R图","authors":"He Xiang-tao, Xiao Xing-hua","doi":"10.1016/0146-6364(80)90029-8","DOIUrl":null,"url":null,"abstract":"<div><p>We have analysed spectroscopic data of 461 white dwarfs and obtained preliminary results as follows: (1) At present, the observed luminosity function agrees about equally well with the crystallization theory as with the non-crystallization theory. (2) White dwarfs appear to form an unbroken sequence on the H-R diagram. (3) The different locations on the diagram are mainly due to differences in temperature and in the degree of internal mixing. Evolution from early to late spectral types may exist.</p></div>","PeriodicalId":100241,"journal":{"name":"Chinese Astronomy","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1980-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0146-6364(80)90029-8","citationCount":"0","resultStr":"{\"title\":\"The luminosity function and the H-R diagram of white dwarfs\",\"authors\":\"He Xiang-tao, Xiao Xing-hua\",\"doi\":\"10.1016/0146-6364(80)90029-8\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>We have analysed spectroscopic data of 461 white dwarfs and obtained preliminary results as follows: (1) At present, the observed luminosity function agrees about equally well with the crystallization theory as with the non-crystallization theory. (2) White dwarfs appear to form an unbroken sequence on the H-R diagram. (3) The different locations on the diagram are mainly due to differences in temperature and in the degree of internal mixing. Evolution from early to late spectral types may exist.</p></div>\",\"PeriodicalId\":100241,\"journal\":{\"name\":\"Chinese Astronomy\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1980-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0146-6364(80)90029-8\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Chinese Astronomy\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0146636480900298\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chinese Astronomy","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0146636480900298","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
The luminosity function and the H-R diagram of white dwarfs
We have analysed spectroscopic data of 461 white dwarfs and obtained preliminary results as follows: (1) At present, the observed luminosity function agrees about equally well with the crystallization theory as with the non-crystallization theory. (2) White dwarfs appear to form an unbroken sequence on the H-R diagram. (3) The different locations on the diagram are mainly due to differences in temperature and in the degree of internal mixing. Evolution from early to late spectral types may exist.
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