Solar flares: recent advances on observations and modelling
Quasi-Periodic Pulsations in Stellar Flares
Chloe E. Pugh
Valery M. Nakariakov (Warwick), Anne-Marie Broomhall (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. More recently, QPPs have been observed in flares of other stars, many of which are thousands of times more powerful than anything observed on the Sun. Stellar flares have been identified in the short-cadence light curves of over 200 Kepler stars, and examined for evidence of QPPs. Those showing evidence of oscillations have been analysed using the autocorrelation and wavelet techniques. QPP-like signatures have been detected in 56 flares, of which 11 have clear damped oscillations. A statistical analysis suggests that the QPPs found in stellar flares are consistent with those found in solar flares.


16:30 - 18:00
EX - C33 (150)