Infrared continuum observations of five-minute oscillations.
Abstract
Infrared continuum observations of the Sun at wavelengths between 10μ and 30μ show a nonisothermal response of the upper photosphere to compression waves associated with the five-minute oscillations. Observations were made with four broad-band filters with effective transmission wavelengths between 10μ and 26μ and with a 10″ aperture. Further observations at submillimeter wavelengths with a 2' aperture did not resolve oscillatory fluctuations of five-minute period.
- Publication:
-
Solar Physics
- Pub Date:
- May 1977
- DOI:
- 10.1007/BF00149644
- Bibcode:
- 1977SoPh...52..263L
- Keywords:
-
- Chromosphere;
- Continuous Radiation;
- Infrared Astronomy;
- Photosphere;
- Solar Radiation;
- Stellar Spectrophotometry;
- Compression Waves;
- Infrared Detectors;
- Power Spectra;
- Solar Spectra;
- Submillimeter Waves;
- Temperature Gradients;
- Time Series Analysis;
- Solar Physics;
- Atmosphere;
- Relaxation Time;
- Velocity Field;
- Field Data;
- Compression Wave;
- Oscillations:Solar Photosphere;
- Solar Photosphere: Infrared Observations