천문학회보 (The Bulletin of The Korean Astronomical Society)
- 제43권2호
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- Pages.58.1-58.1
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- 2018
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- 1226-2692(pISSN)
The inference of minimum temperature of the solar atmosphere from the FISS data
- Moon, Byeongha (Department of Earth Science Education, Chonnam National University) ;
- Chae, Jongchul (Astronomy Program, Department of Physics and Astronomy, Seoul National University) ;
- Kang, Juhyeong (Astronomy Program, Department of Physics and Astronomy, Seoul National University) ;
- Oh, Suyeon (Department of Earth Science Education, Chonnam National University)
- 발행 : 2018.10.10
초록
In the solar atmosphere, below the region of temperature minimum, temperature decreases with height and above it, temperature increases with height. Therefore the inference of temperature minimum is a basis of the study about the solar atmosphere and heating problem. The temperature of the temperature minimum region can be inferred from acoustic cutoff frequency. According to a recent study the acoustic cutoff frequency is related to the peak frequency of the power spectrum the chromospheric three-minute velocity oscillations. Using this relationship, we infer the temperature of temperature minimum. The three minute velocity oscillation and its power spectrum are obtained for a pore observed with the Fast Imaging Solar Spectrograph (FISS)
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