Central Engine Models for Extreme Core-Collapse Supernovae and Long Gamma-Ray Bursts

极端核心塌陷超新星和长伽马射线爆发的中央发动机模型

• 批准号: 1212170
• 负责人: Christian Ott
• 金额: $ 38.29万
• 依托单位: California Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-09-15 至 2015-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1212170&HistoricalAwards=false
• 关键词: Central; Engine; Models; Extreme; Core

This award will support a comprehensive theoretical investigation into core collapse and the resulting supernovae explosions of massive stars. The project will focus on full-star simulations in three dimensions of compact progenitors of certain classes of supernovae and long gamma-ray bursts. The goals of the project are (1) to explore the physical conditions and processes that distinguish between various outcomes of the explosion and to understand which situations produce gamma-ray bursts; (2) to track neutrino-driven and magnetorotational explosions through compact progenitors and make predictions about explosive yield of various nuclei, mixing of ejecta, and explosion morphologies that can be compared with electromagnetic observations; and (3) to provide predictions for the gravitational wave and neutrino signatures of extreme core collapse supernovae and long gamma bursts.Gamma-ray bursts are probably the most energetic events in the universe, and the physics involved is still not well understood. The project is expected to release its codes and simulations to the astrophysics community, and will also involve the training of graduate students in numerical astrophysics.

该奖项将支持对核心崩溃的全面理论调查以及大规模恒星的超新星爆炸。 该项目将集中在某些类别的超新星和长伽马射线爆发的三个维度的全明星模拟上。 该项目的目标是（1）探索区分爆炸的各种结果并了解哪些情况产生伽马射线爆发的物理条件和过程； （2）通过紧凑的祖细胞跟踪中微子驱动的和磁性爆炸，并对各种核的爆炸产量，射流的混合以及爆炸形态进行预测，这些爆炸性和爆炸形态可以与电磁观察结果进行比较； （3）为极端核心塌陷超新星和长伽玛爆发的引力波和中微子特征提供预测。Gamma-ray爆发可能是宇宙中最有活力的事件，所涉及的物理学仍然不太了解。 该项目有望将其代码和模拟发布给天体物理学社区，还将涉及对数字天体物理学研究生的培训。