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Time Dependent Non-Equilibrium Ionization of Transition Region Lines Observed with IRIS
Juan Martinez-Sykora, Bart De Pontieu, Viggo H. Hansteen +1
The properties of non-statistical equilibrium ionization of silicon and oxygen ions are analyzed in this work. We focus on four solar targets (quiet sun, coronal hole, plage, quies…
Multi-Parametric Study of Rising 3D Buoyant Flux Tubes in an Adiabatic Stratification Using AMR
Juan Martinez-Sykora, Fernando Moreno-Insertis, Mark C. M. Cheung
We study the buoyant rise of magnetic flux tubes embedded in an adiabatic stratification using two-and three-dimensional, MHD simulations. We analyze the dependence of the tube evo…
The Role of Partial Ionization Effects in the Chromosphere
Juan Martinez-Sykora, Bart De Pontieu, Viggo H. Hansteen +1
The energy for the coronal heating must be provided from the convection zone. The amount and the method by which this energy is transferred into the corona depends on the propertie…
Internetwork chromospheric bright grains observed with IRIS
Juan Martínez-Sykora, Luc Rouppe van der Voort, Mats Carlsson +18
The Interface Region Imaging Spectrograph (IRIS) reveals small-scale rapid brightenings in the form of bright grains all over coronal holes and the quiet sun. These bright grains a…
Homologous Helical Jets: Observations by IRIS, SDO and Hinode and Magnetic Modeling with Data-Driven Simulations
Mark C. M. Cheung, B. De Pontieu, T. D. Tarbell +18
We report on observations of recurrent jets by instruments onboard the Interface Region Imaging Spectrograph (IRIS), Solar Dynamics Observatory (SDO) and Hinode spacecrafts. Over a…