Back to Volume
Paper: High Resolution Time Series of Narrowband Ca IIK Images in the Chromosphere
Volume: 354, Solar MHD Theory and Observations: A High Spatial Resolution Perspective
Page: 284
Authors: Woeger, F.; Wedemeyer-Boehm, S.; Schmidt, W.; von der Luehe, O.
Abstract: We have observed a region of quiet Sun near disk center with the Vacuum Tower Telescope (VTT) of the Kiepenheuer-Institut für Sonnenphysik at the Observatorio del Teide, Tenerife, Spain in April 2005 in several wavelengths. Observations were made at the Ca IIK line at 393.3 nm, using a Lyot filter with a bandwidth of 30pm FWHM, centered at the K2v emission peak; at the Hα line at 656.3 nm, using a Lyot filter (25pm FWHM) centered at line core, and in the G-band (430.5 nm), using an interference filter (1nm FWHM). We acquired a two-hour long sequence of images at a cadence of ten seconds and a spatial resolution of about 0.3″. We present our Ca observations of excellent spatial resolution which show morphological structures in internetwork regions similar in form, size and lifetime to those present in recent numerical models of the solar chromosphere.
Back to Volume