Intensity oscillation in Hα-fine structure
作者： Arvind Bhatnagar , Katsuo Tanaka
DOI: 10.1007/BF00231085
关键词: Photosphere 、 Astrophysics 、 H-alpha 、 Line (formation) 、 Physics 、 Rosette (zoology) 、 Sunspot 、 Balmer series 、 Oscillation 、 Intensity (physics)
摘要: Using a new technique of directly measuring the intensity variation from 16 mm time-lapse filtergram movies taken in blue wing and line center Hα, we found periodic oscillations Hα-supergranulation network, rosette centers plage granules. The oscillatory period network is order 170 ± 44 seconds while regions stronger magnetic field, such as plages rosettes, was to be longer, on 300 50 seconds. It suggested that observed oscillation related shooting out dark mottles rosettes. Oscillatory fluctuations have been also sunspot umbra.
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