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，将大量材料释放回恒星之间的空间。 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。 该团队选择了5个相对较附近的超新星残留物（SNR），并将结合各种观测值，以创建爆炸恒星部分的位置和速度的3维模型。 由于SNR包含许多元素，每个元素都在特定波长下明亮地辐射，因此研究人员可以在爆炸前推断恒星的组成。 这些观察结果将有助于我们了解导致爆炸的非凡过程。研究人员将使用其虚拟现实（VR）技术对SNR进行3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。 这些动态的可视化将把研究经验远远超出家庭大学，作为各种公共外展设置的宝贵补充。邀请当地学校的学生参加普渡大学设想中心，以体验3D可视化并了解天文学。超新星是理想的多理智实验室，在宇宙的结构和化学构成中起着关键作用。他们开发的3D重建套件将直接解决与超新星爆炸动力学有关的基本主题的不确定性及其与残留阶段的发展，这些阶段在许多物理和天文学领域都有严重影响。研究人员将将观察结果组织为有用的格式，可用于可靠的复杂模拟测试。他们将使用这些重建来预测超新星的重力波和中微子信号，以及动态不稳定性，旋转和磁场的竞争效果，以及多种超新星类型的苏佩尔诺诺瓦恒星内部结构。普渡大学是NSF资助的超新星预警系统的成员，该系统将从这些3D重建中受益，因为它试图从下一个银河系超新星中检测和描述中微子，这反映了NSF的法规任务，并被认为是值得通过的支持。使用基金会的智力优点和更广泛的影响评估标准进行评估。