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Comparative analysis of magnetograms and spectrograms of the NOAA 8076 active region (August 26, 1997) in H-alpha and Ca II 8542 Åстатья
- Авторы: Kupryakov Yu A., Kotrč P.
- Сборник: JOSO Annu. Rep., 1998
- Год издания: 1999
- Место издания: Astronomisches Rechen-Institut Heidelberg, Germany
- Первая страница: 83
- Последняя страница: 84
- Аннотация: Photoheliograms, filtergrams, spectrograms and magnetograms of the NOAA 8076 active region (August 26, 1997) were analysed to study possible relations between velocity fields and magnetic field parameters. The studied active region was characterized by a dynamic behaviour with numerous jets, AFS and repeating emission in spectral lines. Observations were performed simultaneously at the Multichannel Flare Spectrograph (MFS), Patrol Telescope and Photoelectric Magnetograph (PMT) at the Ondřejov Observatory. Qualitative analysis of the data gives comparable results as far as the active region structure concerns. However, different method of the Doppler component velocities processing evaluated for various spectral lines by different methods gives rather large differences of obtained values. Differences can be mostly explained both in the frame of measurement on different levels in the solar atmosphere and by different methods of data processing. Bibliographic Code: 1999joso.proc...83K
- Добавил в систему: Купряков Юрий Алексеевич