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Exploring the circular polarisation of low-frequency solar radio bursts with LOFAR
Diana E. Morosan, Juska E. Räsänen, Anshu Kumari +9
The Sun is an active star that often produces numerous bursts of electromagnetic radiation at radio wavelengths. Low frequency radio bursts have recently been brought back to light…
STIX X-ray microflare observations during the Solar Orbiter commissioning phase
Andrea Francesco Battaglia, Jonas Saqri, Paolo Massa +34
The Spectrometer/Telescope for Imaging X-rays (STIX) is the HXR instrument onboard Solar Orbiter designed to observe solar flares over a broad range of flare sizes, between 4-150 k…
On the origin of hard X-ray emissions from the behind-the-limb flare on 2014 September 1
Yihong Wu, Alexis P. Rouillard, Athanasios Kouloumvakos +6
The origin of hard X-rays and gamma-rays emitted from the solar atmosphere during occulted solar flares is still debated. The hard X-ray emissions could come from flaring loop tops…
Thermal-nonthermal energy partition in solar flares derived from X-ray, EUV, and bolometric observations
Alexander Warmuth, Gottfried Mann
In solar flares, energy is released impulsively and is partly converted into thermal energy of hot plasmas and kinetic energy of accelerated nonthermal particles. Despite numerous…
Interferometric Imaging with LOFAR Remote Baselines of the Fine Structures of a Solar Type IIIb Radio Burst
PeiJin Zhang, Pietro Zucca, Sarrvesh Seethapuram Sridhar +8
Context. Solar radio bursts originate mainly from high energy electrons accelerated in solar eruptions like solar flares, jets, and coronal mass ejections. A subcategory of solar r…
The frequency drift and fine structures of Solar S-bursts in the high frequency band of LOFAR
PeiJin Zhang, Pietro Zucca, ChuanBing Wang +8
Solar S-bursts are short duration ( s at decameter wavelengths) radio bursts that have been observed during periods of moderate solar activity, where S stands for short. The fr…