The Dynamics of Solar-Stellar Atmospheres: Winds, Flares and CMEs
Properties of quasi-periodic pulsations in solar flares from a single active region
Date Submitted
2017-04-14 11:26:18
Chloe E Pugh
Valery M. Nakariakov (University of Warwick), Anne-Marie Broomhall (University of Warwick)
University of Warwick
Quasi-periodic pulsations (QPPs) in solar flares have been widely observed, and can be used as a coronal plasma diagnostics tool. A total of 181 GOES class solar flares have been identified from a single active region (best known as NOAA 12192), which can be tracked for at least three Carrington rotations. Many of these flares show evidence of quasi-periodic pulsations, and a total of 30 flares have QPPs that can be detected in the power spectrum using a highly robust method that takes full account of red noise and data uncertainties. A statistical study is being undertaken using X-ray and microwave observations from GOES, SDO/EVE, Fermi, Vernov, and Nobeyama Radioheliograph. The aim of this investigation is to determine whether there is any relationship between the QPP periods and the flare or active region properties.
Schedule
id
Monday
date time
13:30 - 15:00
14:30
Abstract
Properties of quasi-periodic pulsations in solar flares from a single active region