{"title":"蝌蚪状下流:太阳日冕耀斑中等离子体加热的新机制","authors":"Leping Li","doi":"10.1360/SSPMA-2021-0053","DOIUrl":null,"url":null,"abstract":"Solar flares are a solar activity phenomenon powered by magnetic energy released rapidly through magnetic reconnection. So far the mechanisms for heating the flaring plasma are still under debate. Recently, the researchers from George Mason University, Peking University, etc. discovered that a group of dark tadpole-like downflows, produced during flares, collide with the apexes of flare loops, and strongly heat the surrounding plasma to a higher temperature of 10–20 MK. This discovery also provides a new and alternative explanation for the quasi-periodic pulsations that are often observed in solar and stellar flares.","PeriodicalId":44892,"journal":{"name":"Scientia Sinica-Physica Mechanica & Astronomica","volume":"29 1","pages":""},"PeriodicalIF":0.5000,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Tadpole-like downflows: A new mechanism for plasma heating in the flaring solar corona\",\"authors\":\"Leping Li\",\"doi\":\"10.1360/SSPMA-2021-0053\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Solar flares are a solar activity phenomenon powered by magnetic energy released rapidly through magnetic reconnection. So far the mechanisms for heating the flaring plasma are still under debate. Recently, the researchers from George Mason University, Peking University, etc. discovered that a group of dark tadpole-like downflows, produced during flares, collide with the apexes of flare loops, and strongly heat the surrounding plasma to a higher temperature of 10–20 MK. This discovery also provides a new and alternative explanation for the quasi-periodic pulsations that are often observed in solar and stellar flares.\",\"PeriodicalId\":44892,\"journal\":{\"name\":\"Scientia Sinica-Physica Mechanica & Astronomica\",\"volume\":\"29 1\",\"pages\":\"\"},\"PeriodicalIF\":0.5000,\"publicationDate\":\"2021-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Scientia Sinica-Physica Mechanica & Astronomica\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://doi.org/10.1360/SSPMA-2021-0053\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"ASTRONOMY & ASTROPHYSICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Scientia Sinica-Physica Mechanica & Astronomica","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1360/SSPMA-2021-0053","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ASTRONOMY & ASTROPHYSICS","Score":null,"Total":0}
Tadpole-like downflows: A new mechanism for plasma heating in the flaring solar corona
Solar flares are a solar activity phenomenon powered by magnetic energy released rapidly through magnetic reconnection. So far the mechanisms for heating the flaring plasma are still under debate. Recently, the researchers from George Mason University, Peking University, etc. discovered that a group of dark tadpole-like downflows, produced during flares, collide with the apexes of flare loops, and strongly heat the surrounding plasma to a higher temperature of 10–20 MK. This discovery also provides a new and alternative explanation for the quasi-periodic pulsations that are often observed in solar and stellar flares.