2013 Fiscal Year Final Research Report
Elucidation of the mechanism of deuterium enrichment for ammonia molecule on the interstellar grain surface and use the enrichment fraction for temperature estimation of molecular clouds
| Project/Area Number |
24740362
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Geochemistry/Astrochemistry
|
|---|
| Research Institution | Hokkaido University |
|---|
Principal Investigator |
HIDAKA Hiroshi 北海道大学, 低温科学研究所, 助教 (00400010)
|
|---|
| Project Period (FY) |
2012-04-01 – 2014-03-31
|
| Keywords | 同位体分別 / 星間塵表面反応 / 星間化学 |
|---|
| Research Abstract |
ECR (Electron Cyclotron Resonance) nitrogen atomic source using microwave frequency 2.45GHz has been developed for use in the experimental study of the ortho-para ratio and the degree of deuterium enrichment of ammonia molecule which formed on the interstellar grain surface by the atom-atom addition reactions in molecular clouds. Magnetic field configuration for the plasma confinement was designed by 3D magnetostatic analysis, in order to achieve the nitrogen atomic source with the high flux and the high dissociation fraction.
|
