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 and Co-Authors : Ramesh Chandra1, Rositsa Miteva2, Pooja Devi1, Bendict Lawrance3, Kostadinka Koleva4,5,6 Abstract Type : 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. |