Statistical relationship between the succeeding solar flares detected by the RHESSI satellite

Balázs, Lajos and Gyenge, Norbert and Korsós, Marianna Brigitta and Baranyi, Tünde and Forgácsné Dajka, Emese and Ballai, István (2014) Statistical relationship between the succeeding solar flares detected by the RHESSI satellite. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 441 (2). pp. 1157-1165. ISSN 0035-8711

Preview

Text 1403.6964.pdf Available under License Creative Commons Attribution. Download (1MB) | Preview

Abstract

The Reuven Ramaty High Energy Solar Spectroscopic Imager has observed more than 80 000 solar energetic events since its launch on 2002 February 12. Using this large sample of observed flares, we studied the spatiotemporal relationship between succeeding flares. Our results show that the statistical relationship between the temporal and spatial differences of succeeding flares can be described as a power law of the form R(t) similar to t(p) with p = 0.327 +/- A 0.007. We discuss the possible interpretations of this result as a characteristic function of a supposed underlying physics. Different scenarios are considered to explain this relation, including the case where the connectivity between succeeding events is realized through a shock wave in the post Sedov-Taylor phase or where the spatial and temporal relationship between flares is supposed to be provided by an expanding flare area in the sub-diffusive regime. Furthermore, we cannot exclude the possibility that the physical process behind the statistical relationship is the reordering of the magnetic field by the flare or it is due to some unknown processes.

Actions (login required)

Edit Item