Abstract Details

Name: Ramesh Chandra
Affiliation: Kumaun University, Nainital
Conference ID : ASI2024_77
Title : A comprehensive catalogue of metric type II bursts and associated phenomena
Authors : Ramesh Chandra1, Rositsa Miteva2, Pooja Devi1, Bendict Lawrance3, Kostadinka Koleva4,5,6
Authors Affiliation: 1Department of Physics, DSB Campus, Kumaun University, Nainital 263001, India 2Institute of Astronomy with National Astronomical Observatory-Bulgarian Academy of Sciences, 72 Tsarigradsko Chaussee Blvd., Sofia 1784, Bulgaria 3Department of Astronomy and Space Science, College of Applied Science, Kyung Hee University, Yongin, 17104, Republic of Korea 4Space Research and Technology Institute, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria 5NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA 6The Catholic University of America, Washington, DC 20064, USA
Mode of Presentation: Poster
Abstract Category : Sun, Solar System, Exoplanets, and Astrobiology
Abstract : We compile a catalog of metric type II radio bursts using Radio Solar Telescope Network (RSTN), to study the occurrence, associations, and properties of the emission and their parent solar activity phenomena. According to the strength and clarity of the radio emission features, we have divided the type II radio bursts into two qualitative categories namely, certain and uncertain. We analysed RSTN data in solar cycle 24 (2009−2019) that is freely available from four worldwide stations: Learmonth, Sanvito, Sagamore Hills and Palehua. Through careful visual inspection, we have collected all major metric type II bursts detected in the range of 25−180 MHz. The relationships between these bursts and solar (solar flares (SFs), sunspot (SN) configurations, solar filaments, and coronal mass ejections (CMEs)) and their associated space weather (SW) phenomena (their interplanetary (IP) counterparts (ICMEs), IP shocks, energetic particles, and geomagnetic storms (GSs)) are presented and discussed. The CMEs, SFs, and SN configurations are found to be highly related with type II bursts, whereas a much weaker relationship is found with ICMEs, IP shocks, energetic particles, and GSs. The obtained relationships can be utilized in empirical or physics-based models for SW forecasting.