-
Bart De Pontieu (Lockheed Martin Solar & Astrophysics Laboratory)20/06/2016, 09:05The chromosphere processes all magneto-convective energy that drives coronal heating and requires a heating rate that is at least as large as that required for the corona. Yet many questions remain about what drives the chromospheric dynamics and energetics and how these are connected to the transition region and corona. I will review some recent results from IRIS in which...Go to contribution page
-
Lidong Xia (Shandong University)20/06/2016, 09:35Using high-resolution spectral and imaging data taken by the Interface Region Imaging Spectrograph (IRIS), we investigate the transition region explosive events, which are believed to be signatures of magnetic reconnection, observed in the solar transition region. We found that the explosive events are closely associated with dynamics of small-scaled loops in the solar transition region....Go to contribution page
-
Gregal Vissers (Institute of Theoretical Astrophysics, University of Oslo)20/06/2016, 09:55Since the early days of the CRisp Imaging SpectroPolarimeter (CRISP) at the Swedish 1-m Solar Telescope (SST) the Halpha wing data of more active regions display intermittent flows at apparent chromospheric canopy heights. These flows appear to be aligned with canopy fibrils visible at the Halpha line core, with the blobs that constitute these flocculent flows" seemingly moving from one...Go to contribution page
-
Harry Warren (NRL)20/06/2016, 10:15We exploit the high spatial resolution and high cadence of IRIS to investigate the response of the transition region and chromosphere to energy deposition during several small flares. We find that during the impulsive phase of these events the intensities of the C II 1334 and Si IV 1403 emission lines are characterized by numerous, small-scale impulsive bursts typically lasting 60 s or...Go to contribution page
-
Shin Toriumi (National Astronomical Observatory of Japan)20/06/2016, 11:20Emerging flux regions (EFRs) are known to exhibit various local heating events in the chromosphere. In this talk, we will introduce our two topics on this issue utilizing both Hinode and IRIS observations. First, we will focus on the repeated brightenings and jet ejections seen in the light bridge structures in EFRs (Toriumi et al. 2015a,b). Combining not only the Hinode-IRIS...Go to contribution page
-
Shuhong Yang (NAOC)20/06/2016, 11:50With the high tempo-spatial Interface Region Imaging Spectrograph 1330 Å images, we find that many bright structures are rooted in the light bridge of NOAA 12192, forming a light wall. The light wall is brighter than the surrounding areas, and the wall top is much brighter than the wall body. The New Vacuum Solar Telescope Hα and the Solar Dynamics Observatory 171 and 131 Å images are also...Go to contribution page
-
Carolina Robustini (Institutet för solfysik - Stockholm university)20/06/2016, 12:10We report on four fan-shaped sets of high-speed jets observed at the Swedish 1-m Solar Telescope. These jets appear to be rooted close to sunspots and at light-bridge edges and to be associated with the change of sign in the field polarity. We will present the results of a study of their dynamics, obtained using high-resolution imaging spectroscopy in Hα, and the photospheric...Go to contribution page
-
Rob Rutten (Lingezicht Astrophysics)20/06/2016, 12:30The solar chromosphere observed in H-alpha consists mostly of narrow fibrils. The longest typically originate in network or plage and arch far over adjacent internetwork. We use data from SST, IRIS and SDO to analyze one well-observed example in a quiet area. It resulted from the earlier passage of an accelerating disturbance in which the gas was heated to transition-region and even...Go to contribution page
Choose timezone
Your profile timezone: