Open AccessObservation of eruptive events with the Siberian Radioheliograph
Author(s) -
Анастасия Федотова,
Anastasiya Fedotova,
A. T. Altyntsev,
A. T. Altyntsev,
A. A. Kochanov,
A. A. Kochanov,
Сергей Лесовой,
Sergey Lesovoi,
N. S. Meshalkina,
N. S. Meshalkina
Publication year - 2018
Publication title -
solnečno-zemnaâ fizika
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.11
H-Index - 2
ISSN - 2412-4737
DOI - 10.12737/szf-43201802
Subject(s) - jet (fluid) , astrophysics , brightness , physics , microwave , shading , flare , event (particle physics) , geology , astronomy , quantum mechanics , thermodynamics , art , visual arts
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 microwave source for several tens of minutes. The shading due to the jet appearance was observed on SRH-48 correlation curves as the so-called “negative” burst. Using the “negative” burst on the correlation curves of February 9, 2017 as an example, we show that the intervals with depression of the microwave emission of local sources are not always caused by shading of their emission. In this event, the radio brightness decreased within ten hour period of the increased quasi-stationary emission during the development of AR 12635 magnetic structure. Similar behavior was observed in EUV, SXR, and radio emission at 17 GHz.