High-resolution observations of type II spicules
Abstract
Type II spicules are a class of spicules that is connected with mass-loading and heating of the solar corona. Type II spicules are characterized by short lifetimes and high apparent velocities. Combined with their narrow spatial widths, type II spicules are challenging to observe. We use the CRISP imaging spectropolarimeter at the Swedish 1-m Solar Telescope on La Palma to observe type II spicules at the limb and their counterparts on the solar disk, the so-called "Rapid Blue-shifted Excursions" (RBEs). The combination of adaptive optics and image post-processing allows CRISP to attain high resolution simultaneously in the spatial, temporal and spectral domains. Here we present results from the analysis of several high-quality data sets which allow to constrain the physical properties of type II spicules.
- Publication:
-
SDO-4: Dynamics and Energetics of the Coupled Solar Atmosphere. The Synergy Between State-of-the-Art Observations and Numerical Simulations
- Pub Date:
- March 2012
- Bibcode:
- 2012decs.confE..41R
- Keywords:
-
- SDO;
- SDO-4;
- SDO 4;
- SDO Workshop;
- SDO-4/IRIS/Hinode Workshop;
- Solar Dynamic Observatory