超新星爆炸,黑洞和中子星Supernova explosions, black holes and neutron stars |
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课程网址: | http://videolectures.net/cernacademictraining08_burrows_sebh/ |
主讲教师: | Adam Burrows |
开课单位: | 亚利桑那大学 |
开课时间: | 2010-09-17 |
课程语种: | 英语 |
中文简介: | 现代超新星模拟表明,自然界使用三种一般爆炸机制中的一种或多种来结束大质量恒星的生命,并产生中子星和黑洞。这些是中微子,声学和MHD机制。然而,虽然目前应用于这一难题的计算机代码越来越逼真地结合了必要的物理原理,但它们还不能解决这个问题。此外,现在很清楚的是,伽马暴现象和超新星现象是有联系的,尽管它们相距遥远。我将展示各种模拟的结果,它们背后的物理原理,以及关于引力波、中微子和脉冲星特征的各种场景的预测。目的是总结包含超新星爆炸、伽马射线暴和致密物体诞生的理论在哪里,以及它要去哪里。 |
课程简介: | Modern supernova simulations suggest that one or more of three general classes of explosion mechanisms are employed by Nature to end the life of a massive star and to give birth to neutron stars and black holes. These are the neutrino, acoustic, and MHD mechanisms. However, though the computer codes currently applied to this puzzle incorporate the requisite physics with increasing fidelity, they are not yet able to settle the question. Moreover, it is now clear that the Gamma-Ray Burst phenomenom and the supernova phenomenom are related, however distantly. I will present results of various simulations, the physics behind them, and predictions concerning the gravitational-wave, neutrino, and pulsar signatures of various scenarios. The goal is to summarize where the theory that subsumes supernova explosions, GRBs, and the birth of compact objects is and where it is going. |
关 键 词: | 超新星爆炸; 黑洞; 中子星; 伽玛射线暴现象; 引力波; 中微子; 脉冲星 |
课程来源: | 视频讲座网 |
最后编审: | 2019-10-22:cwx |
阅读次数: | 69 |