| Budget Amount *help |
¥44,330,000 (Direct Cost: ¥34,100,000、Indirect Cost: ¥10,230,000)
Fiscal Year 2024: ¥8,710,000 (Direct Cost: ¥6,700,000、Indirect Cost: ¥2,010,000)
Fiscal Year 2023: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
Fiscal Year 2022: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
Fiscal Year 2021: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
Fiscal Year 2020: ¥8,320,000 (Direct Cost: ¥6,400,000、Indirect Cost: ¥1,920,000)
|
|---|
| Outline of Final Research Achievements |
We demonstrated that the original solid materials of carbonaceous chondrites and samples returned from the asteroids Ryugu and Bennu - regarded as primitive solar system materials - are analogous to the amorphous silicates known as GEMS found in cometary matter. These materials were likely formed in the same thermal event as high-temperature components known as chondrules. Furthermore, we identified fluid inclusions - fossilized evidence of liquid water from the early solar system - within these samples, providing materials-science-based evidence that their parent bodies formed beyond Jupiter’s orbit and subsequently migrated into the asteroid belt within Jupiter’s orbit. Based on these findings, we proposed a new model for the formation and evolution of primitive materials, advancing our understanding of the origin and evolution of early solar system matter.
|
