| Project/Area Number |
63045015
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| Research Category |
Grant-in-Aid for international Scientific Research
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| Allocation Type | Single-year Grants |
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| Section | University-to-University Cooperative Research |
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| Research Institution | Nagoya University |
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Principal Investigator |
MATSUMOTO Toshio School of Science, Nagoya University, Professor, 理学部, 教授 (60022696)
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| Co-Investigator(Kenkyū-buntansha) |
BOCK J カリフォルニア大学, バークーイ校・物理学科, 研究員
LANGE A.E. カリフォルニア大学, バークレー校・物理学科, 助教授
RICHARDS P.L カリフォルニア大学, バークレー校・物理学科, 教授
HAYAKAWA Satio Nagoya University, President, 学長 (60022498)
NOGUCHI Kunio School of Science, Nagoya University, Research Associate, 理学部, 助手 (10111824)
MATSUHARA Hideo School of Science, Nagoya University, Research Associate, 理学部, 助手 (30219464)
SATO Shinji School of Science, Nagoya University, Research Associate, 理学部, 助手 (60192598)
J. Bock Physics Department, University of California, Berkley, Research Staff
A. E. Lange Physics Department, University of California, Berkeley, Associate Professor
P. L. Richards Physics Department, University of California, Berkeley, Professor
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| Project Period (FY) |
1988 – 1990
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| Project Status |
Completed (Fiscal Year 1990)
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| Budget Amount *help |
¥6,500,000 (Direct Cost: ¥6,500,000)
Fiscal Year 1990: ¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1989: ¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1988: ¥2,500,000 (Direct Cost: ¥2,500,000)
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| Keywords | Cosmic Background Radiation / Infrared Astronomy / Space Astronomy |
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| Research Abstract |
The measurement of the infrared sky brightness was attained under the collaboration between Nagoya University and University of California, Berkeley. During this period of this project two rocket flights were carried out, and the development of the satellite born instrument was made. Details of these works are described as follows.
1. S-520-10 rocket experiment
In order to measure the submillimeter spectrum of the 3K cosmic background radiation and the diffuse galactic emission, very sensitive submillimeter photometer with the He3 refrigerator and bolometers was developed and fabricated. The instrument was installed on the sounding rocket S-520-10 and launched on August, 1989. Although spurious noise was picked up, photometer worked well and the performance of He3 refrigerator was confirmed. The data after analysis indicate that 3K cosmic background radiation has a spectrum of the blackbody which is consistent with the recent result of COBE satellite by NASA.
2. S-520-11 rocket experiment
… More
Main objective of this experiment was to measure near-infrared sky brightness and the telescope of 10cm mirror was installed. As one important part of the satellite born infrared telescope (IRTS) a new baffle system was developed and the test of this baffle of 2/3 scale was attained in this rocket experiment. At the end of the flight sequence, telescope was inclined towards earth limb and the earth shine was measured. The result was consistent with the performance measured in the laboratory and it was confirmed that this baffle system is very useful for the IRTS mission.
3. Development of the satellite-born instrument
The focal plane instruments of IRTS are being developed under collaboration between ISAS and NASA. Nagoya University of and University California have had a responsibility on the far infrared photometer (FIRP). The He3 refrigerator with sensitive bolometers were developed in two institutes. IRTS will be launched on January of 1994, and it is expected that FIRP will provide valuable data on the cosmology and galactic structure. Less
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