| Budget Amount *help |
¥9,750,000 (Direct Cost: ¥7,500,000、Indirect Cost: ¥2,250,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2018: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2017: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2016: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
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| Outline of Final Research Achievements |
How massive stars are formed is one of the important issues in current astronomy research, however it is not well understood. In particular, it is not clear how the interstellar magnetic field is related to the formation of massive stars in giant molecular clouds. Therefore, the magnetic field structures of giant molecular clouds with massive stars and those without massive stars were investigated by near-infrared polarization observations, in order to examine their magnetic filed structures in comparison with their density structures. As a result, we found that massive stars are formed in the region where the magnetic field is relatively weak with respect to column density, whereas only low- and intermediate-masse stars are formed in the region where the magnetic field is relatively strong. This suggests that the magnetic field controls the mass of the star formed.
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