Simulation of descending multiple supra--arcade reconnection outflows in solar flares

Abstract

After recent AIA observations by Savage, McKenzie and Reeves we revisit the scenario proposed by us in previous papers. We have shown that sunward, generally dark plasma features originated above posteruption flare arcades are consistent with a scenario where plasma voids (which we identify as supra--arcade reconnection outflows, SAROs) generate the bouncing and interfering of shocks and expansion waves upstream of an initial localized deposition of energy which is collimated in the magnetic field direction. In this paper we analyze the multiple production and interaction of SAROs and their individual structure that make them relatively stable features while moving. We compare our results with observations and with the scenarios proposed by other authors.

arXiv comment9 pages, 6 figures, 1 table. Accepted for publication in The Astrophysical Journal

References in corpus (10)

• Re-interpretation of Supra-Arcade Downflows in Solar Flares
• Quantitative Examination of a Large Sample of Supra-Arcade Downflows in Eruptive Solar Flares
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Cited by in corpus (10)

• Observations of supra-arcade fans: instabilities at the head of reconnection jets
• Plasma Heating Induced by Tadpole-Like Downflows in the Flaring Solar Corona
• Secondary Rayleigh-Taylor type Instabilities in the Reconnection Exhaust Jet as a Mechanism for Supra-Arcade Downflows
• On the Cause of Supra-Arcade Downflows in Solar Flares
• Thermodynamics of supra-arcade downflows in solar flares
• Thermodynamic Evolution of Solar Flare Supra-arcade Downflows
• MHD simulations of coronal supra-arcade downflows including anisotropic thermal conduction
• Effects of supra-arcade downflows interacting with the post-flare arcade
• Temperature and differential emission measure evolution of a limb flare on 13 January 2015
• Two step chromospheric Moreton wave excitation in a blast-wave scenario. A case study: the December 06, 2006 event