CAREER: General Relativistic Modeling of Stellar Death for Advanced LIGO Multi-Messenger Astrophysics

职业：高级 LIGO 多信使天体物理学恒星死亡的广义相对论模型

• 批准号: 1151197
• 负责人: Fiona Harrison
• 金额: $ 44.9万
• 依托单位: California Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-09-01 至 2018-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1151197&HistoricalAwards=false
• 关键词: CAREER; General; Relativistic; Modeling; Stellar

This program will theoretically underpin Advanced LIGO's searches for gravitational waves (GWs) from stellar collapse and core-collapse supernovae and will lay the foundations for a GW-neutrino multimessenger astronomy of core-collapse supernovae in preparation for the next galactic supernova. The project team will develop open-source computer software and efficient algorithms to simulate core-collapse supernovae in full 3D, study the associated emission of gravitational waves and neutrinos, and establish the understanding of how these messengers can be profitably used to probe the astrophysics of supernovae and fundamental physics. The education program consists of a bi-annual summer school at the California Institute of Technology that will bring together astronomy and gravitational-wave physics graduate students to train them in the physics and astrophysics of gravitational-wave sources.Core-collapse supernovae are among the most energetic events in the universe. They are triggered by the collapse of supergiant stars and their explosions enrich the interstellar gas with the elements of life (carbon, oxygen, iron). This research program is motivated by the pressing need to understand how core-collapse supernovae work. It is known that these extreme events are connected to the collapse of massive stars, but it has not yet been clearly established how the initial collapse is reversed and turned into an explosion. An observation of the next galactic core-collapse supernova by Advanced LIGO and by neutrino observatories may shed light on the supernova phenomenon and this research project strives towards creating the theoretical foundation for the interpretation of such signals. The educational part of this program is motivated by the need, in preparation for Advanced LIGO, of training the first generation of true GW astronomers -- scientists who are trained in the physics and observation of gravitational waves and in the physics and astrophysics of their sources.

从理论上讲，该程序将基于恒星崩溃和核心折叠超新星的引力波（GWS）的搜索，并将为核心偏离超级novae的GW-中性多之间天文学奠定基础，以准备下一个半乳半甲烷类超级新闻。该项目团队将开发开源计算机软件和有效算法，以模拟完整3D中的核心偏离超新星，研究引力波和中微子的相关发射，并确定如何利用这些使者的理解，以探测这些使者的探测超新星和基础物理学的天体物理学。 该教育计划由加利福尼亚理工学院的两年一次的暑期学校组成，该学院将召集天文学和引力波物理学毕业生，以在引力波来源的物理和天体物理学中训练它们。宇宙中最有活力的事件之一。它们是由超级恒星的崩溃而触发的，它们的爆炸丰富了生命元素（碳，氧气，铁）的星际气体。 该研究计划的激励是由了解核心崩溃的超新星的工作方式。众所周知，这些极端事件与巨星的崩溃有关，但尚未清楚地确​​定最初的崩溃是如何逆转并变成爆炸的。先进的Ligo和中微子观测值对下一个银河循环超新星的观察可能会阐明超新星现象，该研究项目致力于为解释这种信号建立理论基础。 该计划的教育部分是出于为先进的Ligo做准备的需要，培训第一代真正的GW天文学家 - 在物理学和观察引力波以及其来源的物理学和天体物理学中接受培训的科学家。