Predicting the formation of stars, black holes, and gravitational-wave signals with young galaxy clusters

预测恒星、黑洞和年轻星系团引力波信号的形成

• 批准号: 21K13911
• 负责人: ATA METIN
• 金额: $ 1.91万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Early-Career Scientists
• 财政年份: 2021
• 资助国家: 日本
• 起止时间: 2021-04-01 至 2024-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-21K13911/
• 关键词: Large-scale structures; Cosmological Simulations; Gravitational Waves; Balck holes; High redshift galaxies; Gravitational waves; Binary black holes; Constrained simulations; Young galaxy clusters

In 2022 we published a Nature Astronomy (High Impact Journal) using the constrained simulations technique that I described in the proposalM. Ata et al. Nature Astronomy 6 (2022) 857. This was a great success and showed that the method of 'constrained simulations' is capable reproducing observed structures and even model them into the future.We were able to reproduce the observed structures within our simulations and also predict their future fate by moving the simulation until today. This resembles a predicted future fate of these structures by a total of 11 billion years. At the final time step we analyzed the resulting structures so that we were able to trace back all constituent dark matter particles that belong to this final collapsed object. This was the first application of a constrained simulations on a lightcone.As stated in my proposal, I will use this technique to predict the creation of gravitational wave events.　After a more thoroughly literature research, I came to the conclusion that a limited patch at high redshifts, like we analyzed in the 2022 paper, is not the ideal environment. Also, I re-elaborated the framework and found an application that is more suited to our constrained maps.

在2022年，我们使用我在提案中描述的约束模拟技术发表了一篇自然天文学（高影响期刊）。Ata等人。自然天文学6(2022)857。这是一个巨大的成功，表明“约束模拟”的方法能够再现观察到的结构，甚至可以在未来为它们建模。我们能够在模拟中重现观察到的结构，并通过将模拟移到今天来预测它们未来的命运。这与对这些结构的未来命运的预测相差了110亿年。在最后的时间步骤中，我们分析了产生的结构，这样我们就能够追溯出属于最终坍缩物体的所有暗物质粒子。这是约束模拟在光锥上的首次应用。正如我在提案中所述，我将使用这种技术来预测引力波事件的产生。经过更彻底的文献研究，我得出结论，像我们在2022年的论文中分析的那样，高红移的有限斑块并不是理想的环境。此外，我重新阐述了框架，并找到了一个更适合我们的约束地图的应用程序。

项目成果

University of California(米国)

加州大学（美国）

Max Planck Institute for Astronomy,(ドイツ)

马克斯·普朗克天文学研究所，（德国）

Astrophysical Institute of the Canaries(スペイン)

加那利天体物理研究所（西班牙）

Predicted future fate of COSMOS galaxy protoclusters over 11 Gyr with constrained simulations

• DOI: 10.1038/s41550-022-01693-0
• 发表时间: 2022-06
• 期刊: Nature Astronomy
• 影响因子: 14.1
• 作者: Metin Ata;K. Lee;C. D. Vecchia;F. Kitaura;O. Cucciati;B. Lemaux;D. Kashino;T. Müller

Osservatorio di Astrofisica e Scienza(イタリア)

天体科学观测站（意大利）