| 研究課題/領域番号 |
23K19059
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| 研究機関 | 東北大学 |
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研究代表者 |
HAMIDANI HAMID 東北大学, 理学研究科, 特任助教 (50979119)
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| 研究期間 (年度) |
2023-08-31 – 2025-03-31
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| キーワード | Gamma-ray bursts / Neutron stars / Neutron star mergers / Relativistic jets |
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| 研究実績の概要 |
The objective of this project is to investigate neutron star mergers, which are anticipated to generate short gamma-ray bursts and instigate the nucleosynthesis of heavy elements. The subsequent radioactive decay of these elements is projected to give rise to a distinctive astrophysical event known as a "kilonova."
Collaborating with theoretical specialists, we investigated the impact of relativistic jets on kilonova emissions. We have demonstrated, for the first time, that late-stage relativistic jets (commonly observed in most short gamma-ray bursts) interact with the ejecta from neutron star mergers to produce an early blue emission. Our findings suggest that this interaction can elucidate the enigmatic early "blue early kilonova" emissions observed.
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| 現在までの達成度 (区分) |
現在までの達成度 (区分)
2: おおむね順調に進展している
理由
The project is progressing smoothly and is on track to achieve its goals.
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| 今後の研究の推進方策 |
I plan to proceed as intended. The next step involves conducting calculations for the kilonova emission in a highly realistic manner using state-of-the-art hydrodynamic and radiative transfer simulations.
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| 次年度使用額が生じた理由 |
Next year, I plan to attend multiple international conferences. Additionally, I intend to travel to Europe and stay there for several weeks to discuss my project with collaborators in person. Furthermore, I plan to acquire new equipment (computer in particular) and cover the publication fees.
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