2010 Fiscal Year Final Research Report
An Hard X-ray Study of Star Formation Process
| Project/Area Number |
20540237
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Astronomy
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| Research Institution | Chuo University |
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Principal Investigator |
TSUBOI Yohko Chuo University, 理工学部, 准教授 (70349223)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 原始星 / X線天文 / フレア / ジェット / 偏光 |
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| Research Abstract |
We detected hard X-ray emissions from protostars which are embedded in deep inside of molecular cores, and obtained physical properties (X-ray luminosities, time variabilities, plasma temperatures, etc.). We confirmed youth of the sources using infrared band data obtained with Spitzer satellite. In order to compare with X-ray properties, we also observed stellar sources with different phases and masses, and studied X-ray emitting mechanisms and acceleration of stellar winds. We further studied flare activities (flare frequencies, plasma temperatures, etc.) with extremely large X-ray luminosities, using the all-sky monitor "MAXI". We developed optics which has sensitivity for X-ray polarization.
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