2002 Fiscal Year Final Research Report Summary
Infrared Monitor Observations of T-Tauri Stars
Project/Area Number |
12640230
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Astronomy
|
Research Institution | the University of Tokyo |
Principal Investigator |
UENO Munetaka the University of Tokyo, Graduate School of Arts and Sciences, Assistant Professor, 大学院・総合文化研究科, 助手 (30242019)
|
Co-Investigator(Kenkyū-buntansha) |
DOI Yasuo the University of Tokyo, Graduate School of Arts and Sciences, Assistant Professor, 大学院・総合文化研究科, 助手 (70292844)
TAMURA Motohide National Astronomical Observatory, Optical and Infrared Astronomy Division, Associate Professor, 光学赤外線天文学観測システム研究系, 助教授 (00260018)
MURAKAMI Hiroshi Institute of Space and Astronautical Sciences, Department of Infrared Astrophysics, Professor, 宇宙圏研究系, 教授 (40135299)
|
Project Period (FY) |
2000 – 2002
|
Keywords | Infrared observations / T Tauri stars / Time variation / Infrared camera / Monitor observations / Star formation |
Research Abstract |
The ultimate goal of this project is to find out the origin of time variation of brightness of T Tauri stars by monitor observations at infrared wavelength. The origin is supposed to associate with the surface activities of T-Tauri star as well as activity at the contact region between the photosphere and the disk. Infrared monitor observations are still very limited in area as well as the time intervals. We prepared infrared camera and small telescope, which enable us to use rather wide field of view covering approximately 0.3 square degree of arc, to realize efficient observations. The system also has capability to observe several T Tauri stars as well as flux standard stars (second calibrators) in a single field of view. The sensitivities of the system, with 10 of signal-to-noise ratio at 20 minutes of exposure, are 17 magnitude at J band, 15.5 magnitude at H band, and 14 magnitude at K' band, whose depth is enough to observe T Tauri stars in Taurus star forming regions (lying at 140pc from us). To develop the camera part, we first started evaluation of InSb infrared array which is a test model of the infrared camera on board ASTRO-F mission. We carried out the evaluations using liquid He cooled chamber to operate the sensor device, COGITO-3 multi control system to operate the detector, and 32 cm Newtonian telescope in Komaba campus. The optics to minimize the Coma aberration was also developed to get a wide field of view at infrared wavelength. We have made monitor observations of T Tauri stars and been extending the projected observations of star forming regions with ASTRO-F.
|
Research Products
(8 results)
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[Journal Article] First Detection of an Optical Dust Trail along the Orbit of 22P/Kopff2002
Author(s)
Ishiguro, M., Watanabe, J., Usui, F., Tanigawa, T., Kinoshita, D., Suzuki, J., Nakamura, R., Ueno, M., Mukai, T.
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Journal Title
The Astrophysical Journal 572
Pages: L117-L120
Description
「研究成果報告書概要(和文)」より
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[Journal Article] First Detection of an Optical Dust Trail along the Orbit of 22P/Kopff2002
Author(s)
Ishiguro, M., Watanabe, J., Usui, F., Tanigawa, T., Kinoshita, D., Suzuki, J., Nakamura, R., Ueno, M., Mukai, T
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Journal Title
The Astrophysical Journal Vol.572
Pages: L117-L120
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] VLBI Monitoring Observation of the Semi-Regular Variable Star R Crateris2001
Author(s)
Ishitsuka, J.K., Imai, H., Omodaka T., Ueno M., Kameya, O., Sasao T., Morimoto M., Miyaji T.
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Journal Title
Pub.Astron.Soc.Japan 153
Pages: 2074-2088
Description
「研究成果報告書概要(和文)」より
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[Journal Article] VLBI Monitoring Observation of the Semi-Regular Variable Star R Crateris2001
Author(s)
Ishitsuka, J.K., Imai, H., Omodaka T., Ueno M., Kameya, O., Sasao T., Morimoto M., Miyaji T.
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Journal Title
Pub.Astron.Soc.Japan Vol.153
Pages: 2074-2088
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] IRC (Infrared Camera) onboard ASTRO-F (IRIS) : design overview and current status2000
Author(s)
Watarai, H., Fujita, S., Ishihara, D., Kataza, H., Kim, WJ., Maeda, I., Matsuhara, H., Matsumoto, T., Murakami, H., Negishi, T., Onaka, T., Ootsubo, T., Takeyama, N., Uemizu, K., Ueno, M., Wada, T.
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Journal Title
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Search for Exozodiacal Dust : Are Vega-like Stars Common?2000
Author(s)
Hirao, T., Matsuo, H., Matsuura, S., Murakami, H., Noda, M., Ootsubo, T., Ueno, M.
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Journal Title
Mid- and Far Infrared Astronomy and Future Space Missions ISAS research note Special issue 14
Pages: 19-26
Description
「研究成果報告書概要(和文)」より
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[Journal Article] IRC (Infrared Camera) onboard ASTRO-F (IRIS) : design overview and current status2000
Author(s)
Watarai, H., Fujita, S., Ishihara, D., Kataza, H., Kim, W.J., Maeda, I., Matsuhara, H., Matsumoto, T., Murakami, H., Negishi, T., Onaka, T., Ootsubo, T., Takeyama, N., Uemizu, K., Ueno, M., Wada, T
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Journal Title
SPIE vol.4013
Pages: 114-122
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Search for Exozodiacal Dust : Are Vega-like Stars Common?2000
Author(s)
Hirao, T., Matsuo, H., Matsuura, S., Murakami, H., Noda, M., Ootsubo, T., Ueno, M
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Journal Title
Mid-and Far Infrared Astronomy and Future Space Missions ISAS research note Special issue Vol.14
Pages: 19-26
Description
「研究成果報告書概要(欧文)」より