{ "id": "1504.03533", "version": "v1", "published": "2015-04-14T13:19:08.000Z", "updated": "2015-04-14T13:19:08.000Z", "title": "Multi-wavelength Fibril Dynamics and Oscillations Above Sunspot - I. Morphological Signature", "authors": [ "Emanuel Sungging Mumpuni", "Dhani Herdiwijaya", "Mitra Djamal", "Thomas Djamaluddin" ], "comment": "16 pages, 13 figures", "categories": [ "astro-ph.SR" ], "abstract": "In this work we selected one particular fibril from a high resolution solar chromosphere observation from the Dutch Open Telescope, and tried to obtain a broad picture of the intricate mechanism that might be incorporated in the multiple layer of the Solar atmosphere in high cadence multi-wavelength observation. We analyzed the changingvfibril patter using multi-wavelength tomography, which consists of both H$\\alpha$ line center \\& the blue wing, Doppler-signal, Ca II H, and the G-band. We have found that the intermittent ejected material through fibril from Doppler images has clearly shown oscillation mode, as seen in the H$\\alpha$ blue wing. The oscillations in the umbrae and penumbrae magnetic field lines that are above the sunspot cause a broadening and forms the area like a ring shape from 3 to 15-minute oscillations as function of height. These made a distinct boundary of umbrae and penumbrae which suggest the comb structure, and indicate that the oscillations could propagate along the inclined magnetic flux tubes from below. The 3-minute strongly appeared in the broadly inclined penumbrae magnetic filed lines and gave the clear light-bridge. The well known 5-minute was dominated in the umbrae-penumbrae region boundary, the long 7-minute one was transparent in the H$\\alpha$ blue wing, but this was the same with 10 and 15-minute, it was concentrated in the inner-penumbrae, as seen in the H$\\alpha$ line center. From these findings we propose a picture on the role of fibril as the fabric of interaction between the layers, also the related activites around the active region under investigation.", "revisions": [ { "version": "v1", "updated": "2015-04-14T13:19:08.000Z" } ], "analyses": { "keywords": [ "multi-wavelength fibril dynamics", "oscillation", "penumbrae magnetic filed lines", "morphological signature", "inclined penumbrae magnetic" ], "publication": { "doi": "10.1088/1674-4527/15/11/007", "journal": "Research in Astronomy and Astrophysics", "year": 2015, "month": "Nov", "volume": 15, "number": 11, "pages": 1843 }, "note": { "typesetting": "TeX", "pages": 16, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2015RAA....15.1843S" } } }