Search Publications
Statistical analysis of microflares as observed by the 4–8 GHz spectropolarimeter
Altyntsev, Alexander; Meshalkina, Nataliya; Zhdanov, Dmitriy +1 more
Radio observations of weak events are one of the promising methods for studying energy release and non-thermal processes in the solar corona. The development of instrumental capabilities allows for radio observations of weak transient coronal events, such as quasi-stationary brightenings and weak flares of X-ray class B and below, which were previ…
Comparison between probability density functions of vertical electric current in solar active regions based on HMI/SDO and SOT/Hinode data
Zimovets, Ivan; Nechaeva, Alena; Sharykin, Ivan
Studying electric currents in solar active regions (AR) is an essential step in understanding solar activity in general and solar flares in particular. In this paper, we compare probability density functions of vertical electric current PDF(|jz|) in several active regions, using HMI/SDO and SOT/Hinode photospheric magnetic field data. We have esta…
Quasi-Periodic Pulsations in Solar and Stellar Flares. Review
Kolotkov, Dmitrii; Kupriyanova, Elena; Nakariakov, Valery +1 more
This paper provides an overview of the state-of-the-art studies of oscillatory processes in solar and stellar flares, based on modern observational data from ground-based and space-borne instruments with high temporal, spatial, and spectral resolution in different bands of the electromagnetic spectrum. We examine the mecha-nisms that generate flar…
Observations of small-scale energetic events in the solar transition region: explosive events, UV bursts, and network jets
Li, Bo; Xia, Lidong; Huang, Zhenghua
In this paper, we review observational aspects of three common small-scale energetic events in the solar transition region (TR), namely TR explosive events, ultraviolet bursts and jets. These events are defined in either (both) spectral or (and) imaging data. The development of multiple instruments capable of observing the TR has allowed researche…
Observation of eruptive events with the Siberian Radioheliograph
Fedotova, Anastasiya; Altyntsev, Alexander; Kochanov, Aleksey +2 more
We describe methods for monitoring eruption activity with the first phase of the multiwave Siberian Radioheliograph (SRH-48). We give examples of the recorded eruptive events: 1) rise of a prominence above the limb observed in the radio map sequence of April 24, 2017; 2) a jet recorded on August 2, 2017, whose cold matter screened a compact microw…