Rotating motion in solar surges
β Scribed by Xu Ao-ao; Ding Jiu-ping; Yin Su-ying
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- English
- Weight
- 354 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0275-1062
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π SIMILAR VOLUMES
From high precision computer controlled tracings of bright Ca+-mottles we investigated differential rotation, meridional and random motions of these chromospheric fine structures. The equatorial angular velocity of the Ca+-mottles agrees well with that of sunspots (14.~ per day, sidereal) and is 5 7
The method of has been used with a variety of spectral lines to study oscillating longitudinal gas velocities inside solar magnetic elements. Oscillations have been found inside all elements observed, the amplitudes increasing with height from typically +0.27kms -I in Fe 15166 ~ (a line of low orig
The line-centre magnetogram technique has been used to study velocities at spatial scales ~>5" in several umbras without interference from light scattered from the surrounding non-magnetic photosphere. In addition, more traditional velocity observations of one sunspot were also analysed. The velocit