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Coronal hole oscillations inferred from the SDO/AIA data
| Content Provider | Indian Institute of Astrophysics |
|---|---|
| Author | Hegde, M. Hiremath, K. M. Doddamani, V. H. |
| Description | With high temporal resolution (12 sec) of about two hours duration, data of a coronal hole structure in 171°A, 193°A and 211°A taken from SDO/AIA images is considered for examination of oscillations. After estimating the total DN counts of a whole coronal hole structure in three wavelength bands, the resulting time series are subjected to FFT and wavelet analysis. Significant periods in all the three wavelength bands are detected that are mainly concentrated around 500 sec as a fundamental mode and its odd (167, 100, 71, 56, 46, 39, 33, 29, 26, 24 seconds) harmonics. Computed phases in all the three wavelengths band are estimated to be constant. |
| Starting Page | 1 |
| File Format | |
| ISSN | 02731177 |
| Language | English |
| Publisher Institution | Elsevier B.V |
| Access Restriction | Open |
| Subject Keyword | SDO/AIA Data Coronal hole Flux tube Oscillations |
| Content Type | Text |
| Resource Type | Article |
| Subject | Atmospheric Science Geophysics Astronomy and Astrophysics Aerospace Engineering Space and Planetary Science |
