Please use this identifier to cite or link to this item:
http://hdl.handle.net/2248/6747
Title: | Reflection and Refraction of (Magneto-)Acoustic Waves at the Magnetic Canopy: Further Evidences from Multi-Height Seismic Data |
Authors: | Rajaguru, S. P Sun, Xudong Hayashi, K Couvidat, S |
Issue Date: | Dec-2013 |
Publisher: | Astronomical Society of the Pacific |
Citation: | ASP conference series; Vol. 478, pp. 345- 348 |
Abstract: | We recently presented evidence (Rajaguru et al. 2013) that seismic halos around expanding magnetic structures in the lower solar atmosphere are related to the acoustic to magnetoacoustic wave conversions, using multi-height data from Helioseismic and Magnetic Imager (HMI) and Atmospheric Imaging Assembly (AIA: 1700 and 1600 Å channels) onboard Solar Dynamics Observatory (SDO). Using the same data, we present and discuss here further evidence through analyses of maps of phase-shifts between observables from different heights and their correspondence with oscillation power. The phase shift maps provide more direct signatures of reflection and refraction of (magneto-)acoustic wave modes. |
Description: | Restricted Access © Astronomical Society of the Pacific http://aspbooks.org/custom/publications/paper/478-0345.html |
URI: | http://prints.iiap.res.in/handle/2248/6747 |
ISBN: | 978-1-58381-840-4 |
Appears in Collections: | IIAP Publications |
Files in This Item:
File | Description | Size | Format | |
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Reflection and Refraction of (Magneto-)Acoustic Waves at the Magnetic Canopy Further Evidences from Multi-Height Seismic Data.pdf | 2.01 MB | Adobe PDF | View/Open |
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