Catalogue of Solar Radio Bursts Detected by the LOFAR LV614 Station at the Irbene Observatory during Solar Cycle 25
astro-ph.SR
Submitted: 2026-09-22
Updated: 2026-09-22
Comments: Accepted for publication in The Astrophysical Journal Supplement Series
License: http://creativecommons.org/licenses/by/4.0/
The gist: A catalogue (https://doi.org/10.5281/zenodo.20157853) of solar radio bursts detected with the LV614 LOFAR station at the Irbene Observatory, Latvia, in the stand-alone mode from June 2022 to August
Terminology
Abstract
A catalogue (https://doi.org/10.5281/zenodo.20157853) of solar radio bursts detected with the LV614 LOFAR station at the Irbene Observatory, Latvia, in the stand-alone mode from June 2022 to August 2025 in the 29-60 MHz frequency range is presented. Observations were conducted with the weekly cadence, one-second time resolution, and 0.195 MHz spectral resolution. The cumulative duration of the observation was 1125.2 h. For all analysed observations, bandpass calibration was applied using Cassiopeia A as a reference source. In total, the catalogue includes 335 solar radio bursts. Radio bursts of all five main types, I-V, were detected. Specifically, the catalogue contains parameters of 23, 8, 293, 6, and 5 bursts of Type I, II, III, IV, and V, respectively. The detected burst peak flux ranges from 0.3 SFU to 234 SFU. The catalogue provides information about the peak flux and frequency, and the estimated height of the source above the solar surface. For Type II and III bursts, we also give the estimations of the frequency drifts, with mean values 0.043 MHz,s-1 and 4.383 MHz,s-1, respectively. We also estimated the fit df/dt = Af a, with the best fit parameters A=0.78 and a=0.43. The numbers of Type I and III events are found to decrease with the peak flux, with the power law indices about-0.9 and-1.25, respectively. For Type III, we estimated electron beam speed ranging from 0.005 to 0.477 of the speed of light for the fundamental frequency, and 0.008 to 0.794 of the speed of light for its second harmonic.
Related papers
- HXI-DLA2: A Physics-Constrained Deep Learning Algorithm for the ASO-S Hard X-ray Imager
- Effect of Neutron Star Jets on Common Envelope Evolution
- Constraining the origin of magnetic white dwarfs
- JW-FD: A 15-Year Multimodal Dataset for Solar Flare Forecasting
- Phlegethon: a fully compressible magnetohydrodynamic code for simulations in stellar astrophysics
- Can MHD Oscillations Modulate Quasi-Periodic Plasma Release from Coronal Streamers?