您现在的位置:首页> 美国政府科技报告 >文献详情

Dust in Supernovae and Supernova Remnants Ⅱ: Processing and Survival

机器翻译超新星和超新星遗迹中的尘埃Ⅱ:加工和生存

原文传递 原文传递并翻译 加入购物车 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;

【作者单位】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,,

【页码】361-418

【总页数】58

【正文语种】eng

【中图分类】P145.3;

【关键词】Dust; Supernova remnants; Supernovae; Shock waves; Early Universe;