Vorticity of Granular Flows from NST Observations

Details Vorticity of Granular Flows from NST Observations Vorticity of Granular Flows from NST Observations

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufmsh53b..04p&link_type=abstract

American Geophysical Union, Fall Meeting 2009, abstract #SH53B-04

Astronomy and Astrophysics

Astrophysics

[7524] Solar Physics, Astrophysics, And Astronomy / Magnetic Fields, [7529] Solar Physics, Astrophysics, And Astronomy / Photosphere

Scientific paper

We use observations taken with the New Solar Telescope (NST) at Big Bear Solar Observatory, the world largest solar optical telescope with diffraction limited spatial resolution of 0.06 arc seconds, to study vorticity of granular flows in quiet Sun areas. We employ sequence of images observed with TiO (705.7 nm) filter with time cadence of 30 seconds. The atmospheric seeing effects were removed using speckle-reconstruction technique. We compare vorticity of granular flows and intergranular vortices, and discuss our findings in the framework of surface (turbulent) dynamo.

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