| Project/Area Number |
15K21678
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Solid earth and planetary physics
Astronomy
|
|---|
| Research Institution | Japan Aerospace EXploration Agency |
|---|
Principal Investigator |
ODA Hiroshi 国立研究開発法人宇宙航空研究開発機構, HQ部門 追跡ネットワーク技術センター, 研究開発員 (90714329)
|
|---|
| Research Collaborator |
Yanagisawa Toshifumi
Kurosaki Hirohisa
Ito Takashi
Yoshida Fumi
|
|---|
| Project Period (FY) |
2015-04-01 – 2019-03-31
|
| Project Status |
Completed (Fiscal Year 2018)
|
| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
|
|---|
| Keywords | 地球近傍小惑星 / 多色測光観測 / 宇宙風化 / 可視光 / 近赤外 / 地球近傍小天体 |
|---|
| Outline of Final Research Achievements |
Small solar system bodies created by collisions have information on the early Solar system. However, the surface properties and spectral types of these solar system bodies change due to the space weathering. Therefore, the effect of space weathering should be considered when we investigate the information on the early Solar system from the spectral types. We perform the visible and near-infrared multicolor photometry of near-Earth objects, identify their spectral types, and investigate their distribution. As a result, we reveal how spectral types change due to the space weathering from the early Solar system.
|
| Academic Significance and Societal Importance of the Research Achievements |
当該研究によって取得した観測データを解析し、太陽系初期の情報を推定することで、現在多種多様な太陽系形成・惑星形成の理論モデルに制約を与えることができる。太陽系形成・惑星形成がどのようにして行われたかは、地球や我々人類がどのようにして誕生したか、また太陽系や惑星が今後どのようにして進化していくかを解き明かす上で重要であり、本研究手法の確立やその成果の学術的意義、社会的意義は非常に大きい。
|
