2013 Fiscal Year Final Research Report
Observations of submillimeter water masers with ALMA and VERA
| Project/Area Number |
24684011
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Partial Multi-year Fund |
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| Research Field |
Astronomy
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| Research Institution | National Astronomical Observatory of Japan |
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Principal Investigator |
HIROTA Tomoya 国立天文台, 水沢VLBI観測所, 助教 (10325764)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | 電波天文学 / 位置天文学 / 電波干渉計 / 星形成 / 星間分子 / メーザー / VERA / ALMA |
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| Research Abstract |
The present research carried out observational studies of the nearest massive star-forming region Orion KL by using VERA, a very long baseline interferometer operated by National Astronomical Observatory of Japan, and ALMA, an international millimeter/submillimeter interferometer just started regular operation. The research mainly focused on the centimeter, millimeter, and submillimeter water emission lines. As the result of the present research, some of the water lines were detected for the first time in Orion KL. Furthermore, the highest spatial resolution observations with VERA and ALMA revealed detailed physical, dynamical and chemical properties of a shocked molecular gas called Compact Ridge and a massive protostar Source I.
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