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Fine Structure of the Quiet Solar Chromosphere: Limb-Crossing Features |
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| Authors: | Zachariadis Th.G. Dara H.C. Alissandrakis C.E. Koutchmy S. Gontikakis C. |
| Affiliation: | (1) Research Center for Astronomy and Applied Mathematics, Academy of Athens, 14 Anagnostopoulou St, GR-10673 Athens, Greece;(2) Section of Astro-Geophysics, Department of Physics, University of Ioannina, Greece;(3) CNRS, Institut d'Astrophysique de Paris, 98 bis boulevard Arago, F-75014 Paris, France |
| Abstract: | In this article we study chromospheric structures (spicules) crossing the solar limb in H images corrected for limb darkening. This correction enabled us to view structures both on the disk and beyond the limb in the same image. The observations were obtained at the Sacramento Peak Observatory at H±0.75 Å. The processed images reveal both bright and dark (relative to the local background) features crossing the limb. We also observed bushes (rosettes) crossing the limb, as well as structures indicating probably arch-shaped mottles beyond the limb. |
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