您現在的位置:首頁> 美國政府科技報告 >文獻詳情

Dust in Supernovae and Supernova Remnants Ⅱ: Processing and Survival

機器翻譯超新星和超新星遺跡中的塵埃Ⅱ:加工和生存

原文傳遞 原文傳遞并翻譯 加入購物車 收藏
17.4 【6hr】

【摘要】Observations have recently shown that supernovae are efficient dust factories, as predicted for a long time by theoretical models. The rapid evolution of their stellar progenitors combined with their efficiency in precipitating refractory elements from the gas phase into dust grains make supernovae the major potential suppliers of dust in the early Universe, where more conventional sources like Asymptotic Giant Branch (AGB) stars did not have time to evolve. However, dust yields inferred from observations of young supernovae or derived from models do not reflect the net amount of supernova-condensed dust able to be expelled from the remnants and reach the interstellar medium. The cavity where the dust is formed and initially resides is crossed by the high velocity reverse shock which is generated by the pressure of the circumstellar material shocked by the expanding supernova blast wave. Depending on grain composition and initial size, processing by the reverse shock may lead to substantial dust erosion and even complete destruction. The goal of this review is to present the state of the art about processing and survival of dust inside supernova remnants, in terms of theoretical modelling and comparison to observations.

【作者】E.R. Micelotta; M. Matsuura; A. Sarangi;

【作者單位】Department of Physics, PO Box 64, 00014 University of Helsinki, Finland; School of Physics & Astronomy, Cardiff University, The Parade, Cardiff, CF24 3AA, UK; NASA Goddard Space Right Center, Greenbelt, MD, 20771, USA,Physics Department, The Catholic University of America, Washington, DC, 20064, USA;

【年(卷),期】2019,,

【頁碼】361-418

【總頁數】58

【正文語種】eng

【中圖分類】P145.3;

【關鍵詞】Dust; Supernova remnants; Supernovae; Shock waves; Early Universe;


激情球迷怎么玩 山西十一选五任五最大遗漏 15选5公告 东方6+1投注截止时间 股城模拟炒股平台 福彩3d走势图综合版的 彩票大奖信息 河南11选5开奖软件 北京赛车 亲朋棋牌手机版下载 8月7号广东时时彩开奖结果查询 体彩20选5开奖号码 竞彩篮球大小分如何分 速购微信赚钱 新疆时时玩法和技巧 福建十一选五任五遗漏数据 浙江快乐12开奖时间