کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1765084 | 1020083 | 2014 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Coronal Hole Oscillations as inferred from SDO/AIA data
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موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علوم فضا و نجوم
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Coronal Hole Oscillations as inferred from SDO/AIA data Coronal Hole Oscillations as inferred from SDO/AIA data](/preview/png/1765084.png)
چکیده انگلیسی
With high temporal resolution (12Â s) of about two hours duration, data of a coronal hole structure in 171Â Ã
, 193Â Ã
and 211Â Ã
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 500Â s as a fundamental mode and its odd (167, 100, 71, 56, 46, 39, 33, 29, 26, 24Â s) harmonics. Computed phases in all the three wavelengths band are estimated to be constant.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Advances in Space Research - Volume 54, Issue 2, 15 July 2014, Pages 272-280
Journal: Advances in Space Research - Volume 54, Issue 2, 15 July 2014, Pages 272-280
نویسندگان
Hegde M., Hiremath K.M., Doddamani Vijayakumar H.,