Wavelet-based Characterization of Small-scale Solar Emission Features at Low Radio Frequencies
Suresh, A; Sharma, R; Oberoi, D; Briggs, Franklin; Emrich, David; Goeke, R; Hazelton, B; Johnston-Hollitt, M; Kaplan, D L; Ord, S M; Prabu, T; Rogers, A. E. E; Shankar, N.Udaya; Srivani, K. S.; Whitney, Alan; Williams, Andrew J.
Low radio frequency solar observations using the Murchison Widefield Array have recently revealed the presence of numerous weak short-lived narrowband emission features, even during moderately quiet solar conditions. These nonthermal features occur at rates of many thousands per hour in the 30.72 MHz observing bandwidth, and hence necessarily require an automated approach for their detection and characterization. Here, we employ continuous wavelet transform using a mother Ricker wavelet for...[Show more]
|Collections||ANU Research Publications|
|Source:||The Astrophysical Journal|
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