Observation of quasi-periodic solar radio bursts associated with propagating fast-mode waves

2016/08/15 by C. R. Goddard, G. Nisticò, V. M. Nakariakov +2 · 31 citations
Physics and Astronomy · #Astrophysical Phenomena and Observations #Extreme ultraviolet #Pulsars and Gravitational Waves Research #Radio astronomy #Radio frequency #Radio wave #Solar and Space Plasma Dynamics #Solar flare #Solar physics #Solar radio #Wavelength #astro-ph.SR

paper · pdf · doi:10.1051/0004-6361/201628478

published in Astronomy and Astrophysics 594, A96 (EDP Sciences) · Accepted for publication in A&A

arxiv created 2016/08/15 · openalex publication_date 2016/08/17 · openalex created_date 2016/09/16 · arxiv updated 2016/10/19 · openalex updated_date 2026/08/05

Abstract

Aims. Radio emission observations from the Learmonth and Bruny Island radio spectrographs are analysed to determine the nature of a train of discrete, periodic radio “sparks” (finite-bandwidth, short-duration isolated radio features) which precede a type II burst. We analyse extreme ultraviolet (EUV) imaging from SDO/AIA at multiple wavelengths and identify a series of quasi-periodic rapidly-propagating enhancements, which we interpret as a fast wave train, and link these to the detected radio features.

Citations

• Large-scale Bright Fronts in the Solar Corona: A Review of “EIT waves”
• QUASI-PERIODIC FAST-MODE WAVE TRAINS WITHIN A GLOBAL EUV WAVE AND SEQUENTIAL TRANSVERSE OSCILLATIONS DETECTED BYSDO/AIA
• A Practical Guide to Wavelet Analysis
• DIRECT IMAGING OF QUASI-PERIODIC FAST PROPAGATING WAVES OF ∼2000 km s –1 IN THE LOW SOLAR CORONA BY THE SOLAR DYNAMICS OBSERVATORY ATMOSPHERIC IMAGING ASSEMBLY
• The Atmospheric Imaging Assembly (AIA) on the Solar Dynamics Observatory (SDO)
• Statistical properties of quasi-periodic pulsations in white-light flares observed withKepler