Quasi-periodic Pulsations in Solar and Stellar Flares: An Overview of Recent Results (Invited Review)

By T. Van Doorsselaere, E. Kupriyanova, D. Yuan. 2016

136 citations recorded by the source corpus.

Quasi-periodic pulsations (or QPPs) are periodic intensity variations in the flare emission that occur across all wavelength bands. In this article, we review the observational and modelling achievements since the previous review on this topic by Nakariakov and Melnikov (Space Sci. Rev.149, 119, 2009). In recent years, it has become clear that QPPs are an inherent feature of solar flares because almost all flares exhibit QPPs. Moreover, it is now firmly established that QPPs often show multiple periods. We also review possible mechanisms for generating QPPs. Up to now, it has not been possible to conclusively identify the triggering mechanism or cause of QPPs. The lack of this identification currently hampers possible seismological inferences of flare plasma parameters. QPPs in stellar flares have been detected for a long time, and the high-quality data of the Kepler mission allows studying the QPP more systematically. However, it has not been conclusively shown whether the timescales of stellar QPPs are different or the same as those in solar flares.

Subfields: Astronomy and Astrophysics, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/8ce3289d92b848ce0c6487657b2d2c797bb8e6ca

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

Citations in the corpus

Modelling Quasi-Periodic Pulsations in Solar and Stellar Flares (2018, background): “…et al. 1983; Dennis 1985; Asai et al. 2001; Inglis et al. 2008; Inglis and Nakariakov 2009; Nakariakov and Melnikov 2009; Hayes et al. 2016; Van Doorsselaere et al. 2016; Zhang et al. 2016) and stellar flares (e.g. Mathioudakis et al. 2003; Mathioudakis et al. 2006; Mitra-Kraev et al. 2005).”