Collaborative Research: Constraining Supernova Progenitor Systems and Explosion Mechanisms Through 3D Reconstruction of Supernova Remnants

合作研究：通过超新星遗迹的 3D 重建来约束超新星祖系统和爆炸机制

• 批准号: 2205314
• 负责人: Tea Temim
• 金额: $ 19.39万
• 依托单位: Princeton University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-09-01 至 2025-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2205314&HistoricalAwards=false
• 关键词: Collaborative; Research; Constraining; Supernova; Progenitor

Supernova explosions are dramatic events, releasing huge amounts of material back into the space between stars. The investigators will study the remnants of these explosions to better understand the stars that exploded. The team has selected 5 relatively nearby supernova remnants (SNRs) and will combine a variety of observations to create 3-dimensional models of the locations, and velocities, of parts of the exploded stars. Because the SNRs contain many elements, each brightly radiating at specific wavelengths, the investigators can deduce the composition of the stars just before explosions. These observations will help us understand the remarkable processes leading up to the explosions. The investigators will share their research with the public by creating 3-dimensional (3D) reconstructions of SNRs using their Virtual Reality (VR) technology. The investigator has already demonstrated success with the VR technology. These dynamic visualizations will extend the research experience well beyond the home university, as valuable additions to a variety of public outreach settings. Students from local schools are invited to the Purdue University Envision Center to experience the 3D visualization and learn about astronomy. Supernovae are ideal multi-messenger laboratories that play a key role in the structural and chemical makeup of the universe. The suite of 3D reconstructions they developed will directly address uncertainty in fundamental topics pertaining to supernova explosion dynamics and their evolution to remnant phases that have serious ramifications in many areas of physics and astronomy. The investigators will organize the observations into formats useful for reliable tests of increasingly complex simulations. They will use the reconstructions to predict gravitational wave and neutrino signals of supernovae, and unravel competing effects of dynamical instabilities, rotation and magnetic fields, and pre-supernova stellar interior structure for a variety of supernova types. Purdue University is a member of the NSF-funded Supernova Early Warning System, which will benefit from these 3D reconstructions as it seeks to detect and characterize neutrinos from the next Galactic supernova.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

超新星爆炸是戏剧性的事件，释放出大量的物质回到恒星之间的空间。 研究人员将研究这些爆炸的残余物，以更好地了解爆炸的恒星。 该团队已经选择了5个相对较近的超新星遗迹（SNRs），并将联合收割机结合各种观测，以创建爆炸恒星部分位置和速度的三维模型。 由于SNRs包含许多元素，每种元素都以特定的波长发出明亮的辐射，研究人员可以推断出爆炸前恒星的组成。 这些观测将帮助我们理解导致爆炸的非凡过程。研究人员将通过使用他们的虚拟现实（VR）技术创建SNR的三维（3D）重建与公众分享他们的研究。研究人员已经证明了VR技术的成功。 这些动态可视化将把研究经验扩展到家庭大学之外，作为对各种公共宣传环境的宝贵补充。来自当地学校的学生被邀请到普渡大学展望中心体验3D可视化并学习天文学。超新星是理想的多信使实验室，在宇宙的结构和化学组成中发挥着关键作用。他们开发的3D重建套件将直接解决与超新星爆炸动力学及其演变为残余阶段有关的基本主题的不确定性，这些问题在物理学和天文学的许多领域都有严重的影响。研究人员将把观察结果组织成有助于对日益复杂的模拟进行可靠测试的格式。他们将使用重建来预测超新星的引力波和中微子信号，并解开动力学不稳定性，旋转和磁场以及各种超新星类型的超新星前恒星内部结构的竞争效应。普渡大学是美国国家科学基金会资助的超新星早期预警系统的成员，该系统将从这些3D重建中受益，因为它试图探测和描述下一颗银河超新星的中微子。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。