2016 Fiscal Year Final Research Report
Pioneering study of mid infrared time domain astronomy by newly developed simultaneous observing system
Project/Area Number |
25247017
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Research Category |
Grant-in-Aid for Scientific Research (A)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Astronomy
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Research Institution | The University of Tokyo |
Principal Investigator |
Miyata Takashi 東京大学, 大学院理学系研究科(理学部), 准教授 (90323500)
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Research Collaborator |
KAMIZUKA Takafumi 東京大学, 大学院理学系研究科, 研究員 (30613509)
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Project Period (FY) |
2013-04-01 – 2017-03-31
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Keywords | 赤外線天文学 |
Outline of Final Research Achievements |
Mid infrared is one of the most important wavelengths to study circumstellar disks and shells. Recent satellite telescopes have revealed that the mid-infrared radiations from those objects sometimes show strong time variation. It is very informative and interesting result, but the follow-up observations from the ground are quite difficult because of strong time variation of atmosphere in mid-infrared wavelengths. To overcome this situation a new “2-filed simultaneous observing system” has been developed for mid-infrared observations. It is an optical device to combine two discrete fields in the telescope FoV into a single field and feed it into the astronomical camera. This device enables us to observe a science target and a reference star simultaneously, and improve the photometric accuracy dramatically. This system can be used for 99% and 60% of known mid-infrared objects at 9 and 18 micron, respectatively.
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Free Research Field |
天文学
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