A balloon borne liquid nitrogen cooled infrared radiometer
Abstract
An infrared radiometer has been built to observe the galactic diffuse light in the near infrared region. The whole telescope is cooled by liquid nitrogen so as to reduce the intense emission from the telescope. It was launched by a balloon on Oct. 9, 1971. Small-size irregularities were found to be present in the OH airglow emission and proved to be a great obstacle for the observation of the galactic light. These irregularities are due to winds, gravity waves, and turbulence in the upper atmosphere, and hence the observation of OH airglow emission would give a useful probe for the studies of dynamic properties of the thermosphere.
- Publication:
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Kyoto University Faculty Engineering Memoirs
- Pub Date:
- October 1974
- Bibcode:
- 1974KyoMe..34..341M
- Keywords:
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- Balloon-Borne Instruments;
- Galactic Radiation;
- Hydroxyl Emission;
- Infrared Radiometers;
- Atmospheric Radiation;
- Diffuse Radiation;
- Galactic Structure;
- Interstellar Extinction;
- Liquid Nitrogen;
- Star Distribution;
- Instrumentation and Photography