Small-scale topology of solar atmosphere dynamics. II. Granulation, K2v grains and waves
Abstract
We continue studying the small-scale topology of dynamical phenomena in the quiet-sun internetwork atmosphere through statistical estimation of the co-location probability of different fine-structure elements and wave modes. In this paper we chart spatial alignments between the granular brightness structuring of the photosphere, Ca ii K2V brightness patterns in the chromosphere, and wave amplitude patterns in both regimes as a function of time delay between the occurrences of the various features. These charts confirm the presence of excess 2--4 min waves above dark intergranular lanes, the absence of excess 5 min waves above bright granules, the absence of expected alignments between photospheric and chromospheric wave patterning, and the broad-band nature of Ca ii K2V grain formation. In addition, they show significant alignments at large time delays that seem to be regulated by mesoscale patterning and pattern = migration.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- January 1998
- Bibcode:
- 1998A&A...329..725H
- Keywords:
-
- SUN: ATMOSPHERE;
- SUN: PHOTOSPHERE;
- SUN: CHROMOSPHERE;
- SUN: GRANULATION;
- SUN: OSCILLATIONS