2022 Fiscal Year Annual Research Report
A Data Scientific Approach to Elucidate Multi-scale Physics of Galaxies in the Cosmos
| Project/Area Number |
21J23611
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| Allocation Type | Single-year Grants |
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| Research Institution | Nagoya University |
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Principal Investigator |
COORAY Suchetha 名古屋大学, 理学研究科, 特別研究員(DC1)
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| Project Period (FY) |
2021-04-28 – 2024-03-31
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| Keywords | Galaxies / Magnetism / Machine Learning |
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| Outline of Annual Research Achievements |
Over the past year, my research has focused on three primary areas: the Galaxy Manifold and star formation history estimation. Utilizing unsupervised machine learning, I successfully identified two fundamental parameters that accurately represent galaxies, aligning with current understanding. Furthermore, I developed a method employing generative models to simulate star formation histories, enabling a better match with observations and advancing our comprehension of galaxy formation history. Additionally, I collaborated with the SKA-Japan Science working group on the cosmic magnetism project, exploring the observability of galactic magnetism through simulations and investigating alternative approaches to disentangle complex magnetic field structures.
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| Current Status of Research Progress |
Current Status of Research Progress
1: Research has progressed more than it was originally planned.
Reason
At present, the findings from my Galaxy Manifold research have been documented in a forthcoming paper, which consolidates the results of the multi-wavelength analysis of local galaxies. The paper highlights the consistent outcomes obtained using unsupervised machine learning techniques and their implications for our understanding of galaxy evolution within the vast Universe. Simultaneously, I am in the final stages of preparing a comprehensive publication on my innovative method for star formation history estimation. This approach, leveraging generative models, has shown promising results in generating simulation-like histories that closely match observations, overcoming the limitations of observational data alone.
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| Strategy for Future Research Activity |
With the upcoming publication on the Galaxy Manifold research, I aim to disseminate the findings widely within the scientific community, fostering discussions and encouraging collaborations in the field of galactic analysis. Additionally, I have established a strong network of esteemed researchers in galaxy formation and machine learning. Moving forward, I plan to leverage this network and collaborate on developing a machine learning algorithm for galaxy formation that integrates multi-wavelength and multi-epoch observations. Furthermore, I will actively engage with researchers from renowned institutions such as Stanford University to explore alternative probes and innovative approaches to accurately unravel the complexities associated with galactic magnetism.
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