{"title":"用JWST探测生命的概要","authors":"Katherine Wright","doi":"10.1103/physics.16.178","DOIUrl":null,"url":null,"abstract":"The absorption spectrum of K2-18b’s atmosphere taken with the JWST’s instruments. The detections of methane and carbon dioxide—and the nondetection of ammonia—suggest the presence of an ocean underneath a hydrogen-rich atmosphere, according to planetary models. There’s also a hint of DMS, which on Earth is tied to biological activity.","PeriodicalId":20136,"journal":{"name":"Physics","volume":"131 1","pages":"0"},"PeriodicalIF":1.5000,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The Skinny on Detecting Life with the JWST\",\"authors\":\"Katherine Wright\",\"doi\":\"10.1103/physics.16.178\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The absorption spectrum of K2-18b’s atmosphere taken with the JWST’s instruments. The detections of methane and carbon dioxide—and the nondetection of ammonia—suggest the presence of an ocean underneath a hydrogen-rich atmosphere, according to planetary models. There’s also a hint of DMS, which on Earth is tied to biological activity.\",\"PeriodicalId\":20136,\"journal\":{\"name\":\"Physics\",\"volume\":\"131 1\",\"pages\":\"0\"},\"PeriodicalIF\":1.5000,\"publicationDate\":\"2023-10-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Physics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1103/physics.16.178\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"PHYSICS, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1103/physics.16.178","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
The absorption spectrum of K2-18b’s atmosphere taken with the JWST’s instruments. The detections of methane and carbon dioxide—and the nondetection of ammonia—suggest the presence of an ocean underneath a hydrogen-rich atmosphere, according to planetary models. There’s also a hint of DMS, which on Earth is tied to biological activity.
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